Martin Fejer

All Publications

• Amorphous Zirconia-doped Tantala modeling and simulations using explicit multi-element spectral neighbor analysis machine learning potentials (EME-SNAP) Physical Review Materials Jiang, J., Li, X., Mishkin, A. S., Zhang, R., Bassiri, R., Fry, J. N., Fejer, M. M., Cheng, H. 2023; 7

  View details for DOI 10.1103/PhysRevMaterials.7.045602

• Complex-transfer-function analysis of optical-frequency converters OPTICS LETTERS Chang, D., Langrock, C., Lin, Y., Phillips, C. R., Bennett, C. V., Fejer, M. M. 2014; 39 (17): 5106-5109

  Abstract

  The measurement of the magnitude and phase of the complex transfer function (CTF) of aperiodically poled lithium niobate waveguide devices using frequency resolved optical gating (FROG) is demonstrated. We investigate the sources of CTF distortions which are related to variations in the spatial distribution of the nonlinear coefficient and phase-mismatch profile and present a method to infer fabrication errors from the CTF discussed.

  View details for DOI 10.1364/OL.39.005106

  View details for Web of Science ID 000341100300034

  View details for PubMedID 25166085

• Experimental passive decoy-state quantum key distribution LASER PHYSICS LETTERS Sun, Q., Wang, W., Liu, Y., Zhou, F., Pelc, J. S., Fejer, M. M., Peng, C., Chen, X., Ma, X., Zhang, Q., Pan, J. 2014; 11 (8)

  View details for DOI 10.1088/1612-2011/11/8/085202

  View details for Web of Science ID 000338982000013

• Demonstration of all-optical phase noise suppression scheme using optical nonlinearity and conversion/dispersion delay OPTICS LETTERS Chitgarha, M. R., Khaleghi, S., Ziyadi, M., Mohajerin-Ariaei, A., Almaiman, A., Daab, W., Rogawski, D., Tur, M., Touch, J. D., Langrock, C., Fejer, M. M., Willner, A. E. 2014; 39 (10): 2928-2931

  Abstract

  We propose and demonstrate an all-optical phase noise reduction scheme that uses optical nonlinear mixing and tunable optical delays to suppress the low-speed phase noise induced by laser linewidth. By utilizing the phase conjugate copy of the original signal and two narrow-linewidth optical pumps, the phase noise induced by laser linewidth can be reduced by a factor of ∼5 for a laser with 500-MHz phase noise bandwidth. The error-vector-magnitude can be improved from ∼30% to ∼14% for the same laser linewidth for 40-Gbit/s quadrature phase shift keying signal.

  View details for DOI 10.1364/OL.39.002928

  View details for Web of Science ID 000336982500027

• Generation of biphoton correlation trains through spectral filtering OPTICS EXPRESS Lukens, J. M., Odele, O., Langrock, C., Fejer, M. M., Leaird, D. E., Weiner, A. M. 2014; 22 (8): 9585-9596

  Abstract

  We demonstrate the generation of two-photon correlation trains based on spectral filtering of broadband biphotons. Programmable amplitude filtering is employed to create biphoton frequency combs, which when coupled with optical dispersion allows us to experimentally verify the temporal Talbot effect for entangled photons. Additionally, an alternative spectral phase-filtering approach is shown to significantly improve the overall efficiency of the generation process when a comb-like spectrum is not required. Our technique is ideal for the creation of tunable and high-repetition-rate biphoton states.

  View details for DOI 10.1364/OE.22.009585

  View details for Web of Science ID 000335902200075

  View details for PubMedID 24787846

• Experimental characterization of phase tuning using fine wavelength offsets in a tunable complex-coefficient optical tapped-delay-line OPTICS LETTERS Khaleghi, S., Chitgarha, M. R., Yilmaz, O. F., Tur, M., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2014; 39 (4): 735-738

  Abstract

  We use fine-detuning of pump wavelengths to adjust the tap phases in a complex-coefficient optical tapped-delay-line that utilizes conversion/dispersion-based delays and nonlinear wave mixing. Full 2π phase tuning is demonstrated by detuning the frequency of laser pumps by <20  GHz, which shows close agreement with theory.

  View details for DOI 10.1364/OL.39.000735

  View details for Web of Science ID 000331798000003

  View details for PubMedID 24562193

• Tunable optical correlator using an optical frequency comb and a nonlinear multiplexer OPTICS EXPRESS Ziyadi, M., Chitgarha, M. R., Khaleghi, S., Mohajerin-Ariaei, A., Almaiman, A., Touch, J., Tur, M., Langrock, C., Fejer, M. M., Willner, A. E. 2014; 22 (1): 84-89

  Abstract

  We experimentally demonstrate a tunable optical correlator to search for multiple patterns among QPSK symbols. We utilize an optical frequency comb to generate the coherent signals and multiplex them coherently in a single PPLN waveguide. Multiple patterns with different lengths are successfully searched within QPSK symbols in a 40-Gb/s signal.

  View details for DOI 10.1364/OE.22.000084

  View details for Web of Science ID 000330579300030

  View details for PubMedID 24514968

• Upconversion detection near 2 mu m at the single photon level OPTICS LETTERS Shentu, G., Xia, X., Sun, Q., Pelc, J. S., Fejer, M. M., Zhang, Q., Pan, J. 2013; 38 (23): 4985-4987

  Abstract

  We have demonstrated upconversion detection at the single photon level in the 2 μm spectral window using a pump wavelength near 1550 nm, a periodically poled lithium niobate (PPLN) waveguide, and a volume Bragg grating (VBG) to reduce noise. We achieve a system photon detection efficiency of 10%, with a noise count rate of 24,500 counts per second, competitive with other 2 μm single photon detection technologies. This detector has potential applications in environmental gas monitoring, life science, and classical and quantum communication.

  View details for DOI 10.1364/OL.38.004985

  View details for Web of Science ID 000327815100014

  View details for PubMedID 24281489

• Biphoton manipulation with a fiber-based pulse shaper OPTICS LETTERS Lukens, J. M., Dezfooliyan, A., Langrock, C., Fejer, M. M., Leaird, D. E., Weiner, A. M. 2013; 38 (22): 4652-4655

  Abstract

  We demonstrate spectral shaping of entangled photons in the telecom band with a programmable, fiber-based optical filter. The fine-resolution spectral control permits implementation of length-40 Hadamard codes, through which we are able to verify frequency anticorrelation with a 20-fold increase in total counts over that permitted by the equivalent pair of monochromators at the same input flux. By programming the complex spectral transmission function corresponding to a Mach-Zehnder interferometer, we also construct variations on Franson interferometers that are free from mechanical instabilities, demonstrating spectral phase independence in the slow-detector limit, in which all temporal features are unobservable. Our configuration furnishes a single, compact arrangement for manipulating telecom biphotons and characterizing their quality.

  View details for DOI 10.1364/OL.38.004652

  View details for Web of Science ID 000327142600034

  View details for PubMedID 24322097

• Simultaneous and independent processing of multiple input WDM data signals using a tunable optical tapped delay line OPTICS LETTERS Khaleghi, S., Chitgarha, M. R., Ziyadi, M., Daab, W., Mohajerin-Ariaei, A., Rogawski, D., Touch, J. D., Tur, M., Langrock, C., Fejer, M. M., Willner, A. E. 2013; 38 (21): 4273-4276

  Abstract

  We demonstrate a tunable optical tapped delay line that can simultaneously and independently operate on multiple wavelength-division multiplexed (WDM) data signals. The system utilizes the wavelength-dependent speed of light, together with nonlinear wavelength conversion stages. A phase-preserving scheme enables coherent addition of the weighted taps. We reconfigured the system to perform separate simultaneous correlation (data pattern recognition), equalization, and modulation format conversion on four and eight WDM binary/quadrate phase-shift keyed channels at 26 and 20 Gbaud, respectively. The aggregate throughput of 416 Gb/s is achieved.

  View details for DOI 10.1364/OL.38.004273

  View details for Web of Science ID 000327141100003

  View details for PubMedID 24177071

• 217 km long distance photon-counting optical time-domain reflectometry based on ultra-low noise up-conversion single photon detector OPTICS EXPRESS Shentu, G., Sun, Q., Jiang, X., Wang, X., Pelc, J. S., Fejer, M. M., Zhang, Q., Pan, J. 2013; 21 (21): 24674-24679

  Abstract

  We demonstrate a photon-counting optical time-domain reflectometry with 42.19 dB dynamic range using an ultra-low noise up-conversion single photon detector. By employing the long-wave pump technique and a volume Bragg grating, we achieve a noise equivalent power of -139.7 dBm/√Hz for our detector. We perform the OTDR experiments using a fiber of length approximate 217 km, and show that our system can identify defects along the entire fiber length in a measurement time of 13 minutes.

  View details for DOI 10.1364/OE.21.024674

  View details for Web of Science ID 000326085600025

  View details for PubMedID 24150311

• Spectral response of an upconversion detector and spectrometer OPTICS EXPRESS Kuo, P. S., Slattery, O., Kim, Y., Pelc, J. S., Fejer, M. M., Tang, X. 2013; 21 (19): 22523-22531

  Abstract

  We investigate the spectral response of an upconversion detector theoretically and experimentally, and discuss implications for its use as an infrared spectrometer. Upconversion detection is based on high-conversion-efficiency, sum-frequency generation (SFG). The spectral selectivity of an upconversion spectrometer is determined by the SFG spectral response function. This function changes with varying pump power. Working at maximum internal conversion efficiency is desirable for high sensitivity of the system, but the spectral response function is different at this pump power compared to the response function at low power. We calculate the theoretical spectral response of the upconversion detector as a function of pump power and obtain excellent agreement with upconversion spectra measured in a periodically poled LiNbO₃ waveguide.

  View details for DOI 10.1364/OE.21.022523

  View details for Web of Science ID 000325547200076

  View details for PubMedID 24104141

• Demonstration of reconfigurable optical generation of higher-order modulation formats up to 64 QAM using optical nonlinearity OPTICS LETTERS Chitgarha, M. R., Khaleghi, S., Bakhtiari, Z., Ziyadi, M., Gerstel, O., Paraschis, L., Langrock, C., Fejer, M. M., Willner, A. E. 2013; 38 (17): 3350-3353

  Abstract

  We demonstrate a reconfigurable optical transmitter of higher-order modulation formats including pulse-amplitude-modulation (PAM) signals and quadrature-amplitude-modulation (QAM) signals. We generated six different modulation formats by multiplexing 10  Gbit/s on-off-keying (OOK) signals (10 Gbaud binary phase-shift keying, 4-PAM, 8-PAM quadrature phase-shift keying (QPSK), 16-QAM and 16-star-QAM with error-vector magnitudes (EVMs) of 8.1%, 7.5%, 7.8%, 8.2%, 7.2%, and 6.9%, respectively) and 80  Gbit/s 16-QAM with an EVM of 8.5%, as well as 120  Gbit/s 64-QAM with an EVM of 7.1%, using two or three 40  Gbit/s QPSK signals, respectively. We also successfully transmitted the generated 16-QAM signals through a 100 km transmission line with negligible power penalty.

  View details for DOI 10.1364/OL.38.003350

  View details for Web of Science ID 000323758000043

  View details for PubMedID 23988954

• Interaction of independent single photons based on integrated nonlinear optics NATURE COMMUNICATIONS Guerreiro, T., Pomarico, E., Sanguinetti, B., Sangouard, N., Pelc, J. S., Langrock, C., Fejer, M. M., Zbinden, H., Thew, R. T., Gisin, N. 2013; 4

  Abstract

  The parametric interaction of light beams in nonlinear materials is usually thought to be too weak to be observed when the fields involved are at the single-photon level. However, such single-photon level nonlinearity is not only fundamentally fascinating but holds great potential for emerging technologies and applications involving heralding entanglement at a distance. Here we use a high-efficiency waveguide to demonstrate the sum-frequency generation between a single photon and a single-photon level coherent state. The use of an integrated, solid state, room temperature device and telecom wavelengths makes this type of system directly applicable to future quantum communication technologies such as device-independent quantum key distribution.

  View details for DOI 10.1038/ncomms3324

  View details for Web of Science ID 000323752300009

  View details for PubMedID 23945795

• Complete tomography of a high-fidelity solid-state entangled spin-photon qubit pair. Nature communications De Greve, K., McMahon, P. L., Yu, L., Pelc, J. S., Jones, C., Natarajan, C. M., Kim, N. Y., Abe, E., Maier, S., Schneider, C., Kamp, M., Höfling, S., Hadfield, R. H., Forchel, A., Fejer, M. M., Yamamoto, Y. 2013; 4: 2228-?

  Abstract

  Entanglement between stationary quantum memories and photonic qubits is crucial for future quantum communication networks. Although high-fidelity spin-photon entanglement was demonstrated in well-isolated atomic and ionic systems, in the solid-state, where massively parallel, scalable networks are most realistically conceivable, entanglement fidelities are typically limited due to intrinsic environmental interactions. Distilling high-fidelity entangled pairs from lower-fidelity precursors can act as a remedy, but the required overhead scales unfavourably with the initial entanglement fidelity. With spin-photon entanglement as a crucial building block for entangling quantum network nodes, obtaining high-fidelity entangled pairs becomes imperative for practical realization of such networks. Here we report the first results of complete state tomography of a solid-state spin-photon-polarization-entangled qubit pair, using a single electron-charged indium arsenide quantum dot. We demonstrate record-high fidelity in the solid-state of well over 90%, and the first (99.9%-confidence) achievement of a fidelity that will unambiguously allow for entanglement distribution in solid-state quantum repeater networks.

  View details for DOI 10.1038/ncomms3228

  View details for PubMedID 23887066

• Coherent correlator and equalizer using a reconfigurable all-optical tapped delay line OPTICS LETTERS Chitgarha, M. R., Khaleghi, S., Yilmaz, O. F., Tur, M., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2013; 38 (13): 2271-2273

  Abstract

  We experimentally demonstrate a reconfigurable optical tapped delay line in conjunction with coherent detection to search multiple patterns among quadrature phase shift keying (QPSK) symbols in 20 Gbaud data channel and also to equalize 20 and 31 Gbaud QPSK, 20 Gbaud 8 phase shift keying (PSK), and 16 QAM signals. Multiple patterns are searched successfully on QPSK signals, and correlation peaks are obtained at the matched patterns. QPSK, 8 PSK, and 16 QAM signals are also successfully recovered after 25 km of SMF-28 with average EVMs of 8.3%, 8.9%, and 7.8%. A penalty of <1 dB optical signal to noise penalty is achieved for a 20 Gbaud QPSK signal distorted by up to 400  ps/nm dispersion.

  View details for DOI 10.1364/OL.38.002271

  View details for Web of Science ID 000321262500037

  View details for PubMedID 23811899

• Ultralow noise up-conversion detector and spectrometer for the telecom band OPTICS EXPRESS Shentu, G., Pelc, J. S., Wang, X., Sun, Q., Zheng, M., Fejer, M. M., Zhang, Q., Pan, J. 2013; 21 (12): 13986-13991

  Abstract

  We demonstrate up-conversion single-photon detection for the 1550-nm telecommunications band using a PPLN waveguide, long-wavelength pump, and narrowband filtering using a volume Bragg grating. We achieve total-system detection efficiency of around 30% with noise at the dark-count level of a Silicon APD. Based on the new detector, a single-pixel up-conversion infrared spectrometer with a noise equivalent power of -142 dBm Hz(-1/2) was demonstrated, which was as good as a liquid nitrogen cooled CCD camera.

  View details for DOI 10.1364/OE.21.013986

  View details for Web of Science ID 000320510300011

  View details for PubMedID 23787588

• Apodization of chirped quasi-phasematching devices JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Phillips, C. R., Langrock, C., Chang, D., Lin, Y. W., Gallmann, L., Fejer, M. M. 2013; 30 (6): 1551-1568

  View details for DOI 10.1364/JOSAB.30.001551

  View details for Web of Science ID 000319739100023

• Reconfigurable optical quadrature amplitude modulation converter/encoder using a tunable complex coefficient optical tapped delay line OPTICS LETTERS Khaleghi, S., Chitgarha, M. R., Yilmaz, O. F., Tur, M., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2013; 38 (10): 1600-1602

  Abstract

  We experimentally demonstrate a reconfigurable optical converter/encoder for quadrature amplitude modulated (QAM) signals. The system utilizes nonlinear wavelength multicasting, conversion-dispersion delays, and simultaneous nonlinear multiplexing and sampling. We show baud rate tunability (31 and 20 Gbaud) and reconfigurable conversions from lower-order QAM signals to higher-order QAM signals (e.g., 64-QAM).

  View details for DOI 10.1364/OL.38.001600

  View details for Web of Science ID 000319110500004

• Reducing noise in single-photon-level frequency conversion OPTICS LETTERS Kuo, P. S., Pelc, J. S., Slattery, O., Kim, Y., Fejer, M. M., Tang, X. 2013; 38 (8): 1310-1312

  Abstract

  We demonstrate low-noise and efficient frequency conversion by sum-frequency mixing in a periodically poled LiNbO(3) (PPLN) waveguide. Using a 1556 nm pump, 1302 nm photons are efficiently converted to 709 nm photons. We obtain 70% conversion efficiency in the PPLN waveguide and >50% external conversion efficiency with 600 noise counts per second at peak conversion with continuous-wave pumping. We simultaneously achieve low noise and high conversion efficiency by careful spectral filtering. We discuss the impact of low-noise frequency translation on single-photon upconversion detection and quantum information applications.

  View details for DOI 10.1364/OL.38.001310

  View details for Web of Science ID 000317580200043

  View details for PubMedID 23595468

• Characteristics and instabilities of mode-locked quantum-dot diode lasers OPTICS EXPRESS Li, Y., Lester, L. F., Chang, D., Langrock, C., Fejer, M. M., Kane, D. J. 2013; 21 (7): 8007-8017

  Abstract

  Current pulse measurement methods have proven inadequate to fully understand the characteristics of passively mode-locked quantum-dot diode lasers. These devices are very difficult to characterize because of their low peak powers, high bandwidth, large time-bandwidth product, and large timing jitter. In this paper, we discuss the origin for the inadequacies of current pulse measurement techniques while presenting new ways of examining frequency-resolved optical gating (FROG) data to provide insight into the operation of these devices. Under the assumptions of a partial coherence model for the pulsed laser, it is shown that simultaneous time-frequency characterization is a necessary and sufficient condition for characterization of mode-locking. Full pulse characterization of quantum dot passively mode-locked lasers (QD MLLs) was done using FROG in a collinear configuration using an aperiodically poled lithium niobate waveguide-based FROG pulse measurement system.

  View details for Web of Science ID 000317659300017

  View details for PubMedID 23571891

• Parametric processes in quasi-phasematching gratings with random duty cycle errors JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Phillips, C. R., Pelc, J. S., Fejer, M. M. 2013; 30 (4): 982-993

  View details for Web of Science ID 000316994100033

• 104 MHz rate single-shot recording with subpicosecond resolution using temporal imaging OPTICS EXPRESS Hernandez, V. J., Bennett, C. V., Moran, B. D., Drobshoff, A. D., Chang, D., Langrock, C., Fejer, M. M., Ibsen, M. 2013; 21 (1): 196-203

  Abstract

  We demonstrate temporal imaging for the measurement and characterization of optical arbitrary waveforms and events. The system measures single-shot 200 ps frames at a rate of 104 MHz, where each frame is time magnified by a factor of -42.4x. Impulse response tests show that the system enables 783 fs resolution when placed at the front end of a 20 GHz oscilloscope. Modulated pulse trains characterize the system's impulse response, jitter, and frame-to-frame variation.

  View details for Web of Science ID 000315988100042

  View details for PubMedID 23388911

• Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel OPTICS EXPRESS Pelc, J. S., Yu, L., De Greve, K., McMahon, P. L., Natarajan, C. M., Esfandyarpour, V., Maier, S., Schneider, C., Kamp, M., Hoefling, S., Hadfield, R. H., Forchel, A., Yamamoto, Y., Fejer, M. M. 2012; 20 (25): 27510-27519

  Abstract

  Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We implement a downconversion quantum interface, where the single photons emitted from a semiconductor quantum dot at 910 nm are downconverted to 1560 nm using a fiber-coupled periodically poled lithium niobate waveguide and a 2.2-μm pulsed pump laser. The single-photon character of the quantum dot emission is preserved during the downconversion process: we measure a cross-correlation g(2)(τ = 0) = 0.17 using resonant excitation of the quantum dot. We show that the downconversion interface is fully compatible with coherent optical control of the quantum dot electron spin through the observation of Rabi oscillations in the downconverted photon counts. These results represent a critical step towards a long-distance hybrid quantum network in which subsystems operating at different wavelengths are connected through quantum frequency conversion devices and 1.5-μm quantum channels.

  View details for Web of Science ID 000314746600031

  View details for PubMedID 23262701

• Quantum-dot spin-photon entanglement via frequency downconversion to telecom wavelength NATURE De Greve, K., Yu, L., McMahon, P. L., Pelc, J. S., Natarajan, C. M., Kim, N. Y., Abe, E., Maier, S., Schneider, C., Kamp, M., Hoefling, S., Hadfield, R. H., Forchel, A., Fejer, M. M., Yamamoto, Y. 2012; 491 (7424): 421-?

  Abstract

  Long-distance quantum teleportation and quantum repeater technologies require entanglement between a single matter quantum bit (qubit) and a telecommunications (telecom)-wavelength photonic qubit. Electron spins in III-V semiconductor quantum dots are among the matter qubits that allow for the fastest spin manipulation and photon emission, but entanglement between a single quantum-dot spin qubit and a flying (propagating) photonic qubit has yet to be demonstrated. Moreover, many quantum dots emit single photons at visible to near-infrared wavelengths, where silica fibre losses are so high that long-distance quantum communication protocols become difficult to implement. Here we demonstrate entanglement between an InAs quantum-dot electron spin qubit and a photonic qubit, by frequency downconversion of a spontaneously emitted photon from a singly charged quantum dot to a wavelength of 1,560 nanometres. The use of sub-10-picosecond pulses at a wavelength of 2.2 micrometres in the frequency downconversion process provides the necessary quantum erasure to eliminate which-path information in the photon energy. Together with previously demonstrated indistinguishable single-photon emission at high repetition rates, the present technique advances the III-V semiconductor quantum-dot spin system as a promising platform for long-distance quantum communication.

  View details for DOI 10.1038/nature11577

  View details for Web of Science ID 000311031600041

  View details for PubMedID 23151585

• Simultaneous subchannel data updating for multiple channels of 16-quadrature amplitude modulation signals using a single periodically poled lithium niobate waveguide OPTICS LETTERS Huang, H., Yang, J., Wu, X., Khaleghi, S., Ziyadi, M., Tur, M., Langrock, C., Fejer, M. M., Paraschis, L., Willner, A. E. 2012; 37 (21): 4365-4367

  Abstract

  Subchannel data updating of high-order modulation format signals using cascaded sum- and difference-frequency generation in a single periodically poled lithium niobate waveguide is demonstrated. One quadrature phase-shift-keying subchannel of a 16-quadrature amplitude modulation (QAM) signal at 40 Gbit/s is successfully updated, with an optical signal-to-noise ratio (OSNR) penalty of ~2 dB for return-to-zero and ~4 dB for non-return-to-zero at a bit-error rate (BER) of 2×10(-3). Simultaneous processing of four wavelength-multiplexed 16-QAM signals with an average OSNR penalty of 4.5 dB at a BER of 2×10(-3) is also demonstrated.

  View details for Web of Science ID 000310577700004

  View details for PubMedID 23114297

• Demonstration of channel-spacing-tunable demultiplexing of optical orthogonal-frequency-division-multiplexed subcarriers utilizing reconfigurable all-optical discrete Fourier transform OPTICS LETTERS Chitgarha, M. R., Khaleghi, S., Yilmaz, O. F., Tur, M., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2012; 37 (19): 3975-3977

  Abstract

  We experimentally demonstrate a tunable and reconfigurable optical discrete Fourier transform (DFT) to demultiplex orthogonal-frequency-division-multiplexed subcarriers with 2/3/4 subcarriers at 20/40 GHz frequency spacing. An average power penalty of ~5 dB (~3.5) at bit error ratio of 10(-9) is achieved for 4×20 Gbit/s (4×10 Gbit/s) OFDM signal with 20 GHz frequency spacing.

  View details for Web of Science ID 000309542900017

  View details for PubMedID 23027250

• Up-conversion of optical signals with multi-longitudinal-mode pump lasers PHYSICAL REVIEW A Pelc, J. S., Shentu, G., Zhang, Q., Fejer, M. M., Pan, J. 2012; 86 (3)

  View details for DOI 10.1103/PhysRevA.86.033827

  View details for Web of Science ID 000309079500009

• Experimental performance of a fully tunable complex-coefficient optical FIR filter using wavelength conversion and chromatic dispersion OPTICS LETTERS Khaleghi, S., Chitgarha, M. R., Yilmaz, O. F., Tur, M., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2012; 37 (16): 3420-3422

  Abstract

  We experimentally characterize the performance of a continuously tunable all-optical complex-coefficient finite-impulse-response (FIR) filter that exploits nonlinear signal processing (multiplexing and multicasting) and conversion-dispersion-based optical delays. Various length (three and four) optical FIR filters with different tap amplitudes (from 0 to -9 dB), tap phases (from 0 to 2π), and tap delays (~37.4 ps and 25 ps) are realized, showing reconfiguration and tuning capabilities of this FIR filter. The measured frequency responses show close agreement with the theoretical filter responses.

  View details for Web of Science ID 000307956700043

  View details for PubMedID 23381277

• Dual-channel, single-photon upconversion detector at 1.3 mu m OPTICS EXPRESS Pelc, J. S., Kuo, P. S., Slattery, O., Ma, L., Tang, X., Fejer, M. M. 2012; 20 (17): 19075-19087

  Abstract

  We demonstrate a two-channel, upconversion detector for counting 1300-nm-wavelength photons. By using two pumps near 1550 nm, photons near 1300 nm are converted to two spectrally distinct channels near 710 nm using sum-frequency generation (SFG) in a periodically poled LiNbO3 (PPLN) waveguide. We used spectral-conversion engineering to design the phase-modulated PPLN waveguide for simultaneous quasi-phasematching of two SFG processes. The two channels exhibit 31% and 25% full-system photon detection efficiency, and very low dark count rates (650 and 550 counts per second at a peak external conversion efficiency of 70%) through filtering using a volume Bragg grating. We investigate applications of the dual-channel upconversion detector as a frequency-shifting beamsplitter, and as a time-to-frequency converter to enable higher-data-rate quantum communications.

  View details for Web of Science ID 000307873600058

  View details for PubMedID 23038548

• High-Speed Correlation and Equalization Using a Continuously Tunable All-Optical Tapped Delay Line IEEE PHOTONICS JOURNAL Khaleghi, S., Yilmaz, O. F., Chitgarha, M. R., Tur, M., Ahmed, N., Nuccio, S. R., Fazal, I. M., Wu, X., Haney, M. W., Langrock, C., Fejer, M. M., Willner, A. E. 2012; 4 (4): 1220-1235

  View details for DOI 10.1109/JPHOT.2012.2205671

  View details for Web of Science ID 000306691800002

• Widely tunable midinfrared difference frequency generation in orientation-patterned GaAs pumped with a femtosecond Tm-fiber system OPTICS LETTERS Phillips, C. R., Jiang, J., Mohr, C., Lin, A. C., Langrock, C., Snure, M., Bliss, D., Zhu, M., Hartl, I., Harris, J. S., Fermann, M. E., Fejer, M. M. 2012; 37 (14): 2928-2930

  Abstract

  We demonstrate a midinfrared source tunable from 6.7 to 12.7 μm via difference frequency generation (DFG) in orientation-patterned GaAs, with 1.3 mW average output power. The input pulses are generated via Raman self-frequency shift of a femtosecond Tm-doped-fiber laser system in a fluoride fiber. We numerically model the DFG process and show good agreement between simulations and experiments. We use this numerical model to show an improved design using longer pump pulses.

  View details for Web of Science ID 000306709900053

  View details for PubMedID 22825181

• Cascaded frequency upconversion for high-speed single-photon detection at 1550 nm OPTICS LETTERS Pelc, J. S., Zhang, Q., Phillips, C. R., Yu, L., Yamamoto, Y., Fejer, M. M. 2012; 37 (4): 476-478

  Abstract

  We present a device for two-stage frequency upconversion of single-photon-level signals in the 1.55 μm telecom band to the green spectral region with low excess noise, suitable for detection by low-timing-jitter silicon single-photon avalanche photodiodes (APDs). We achieve a net conversion efficiency of 87% and a system timing jitter below 70 ps FWHM, dominated by the jitter of the APD. Modifications of our device are suitable for downconversion of single photons from visible-wavelength quantum emitters into the telecom band.

  View details for Web of Science ID 000300706500011

  View details for PubMedID 22344078

• Adiabatic optical parametric oscillators: steady-state and dynamical behavior OPTICS EXPRESS Phillips, C. R., Fejer, M. M. 2012; 20 (3): 2466-2482

  Abstract

  We study singly-resonant optical parametric oscillators with chirped quasi-phasematching gratings as the gain medium, for which adiabatic optical parametric amplification has the potential to enhance conversion efficiency. This configuration, however, has a modulation instability which must be suppressed in order to yield narrowband output signal pulses. We show that high conversion efficiency can be achieved by using either a narrowband seed or a high-finesse intracavity etalon.

  View details for Web of Science ID 000300499500054

  View details for PubMedID 22330485

• Long-wavelength-pumped upconversion single-photon detector at 1550 nm: performance and noise analysis OPTICS EXPRESS Pelc, J. S., Ma, L., Phillips, C. R., Zhang, Q., Langrock, C., Slattery, O., Tang, X., Fejer, M. M. 2011; 19 (22): 21445-21456

  Abstract

  We demonstrate upconversion-assisted single-photon detection for the 1.55-μm telecommunications band based on a periodically poled lithium niobate (PPLN) waveguide pumped by a monolithic PPLN optical parametric oscillator. We achieve an internal conversion efficiency of 86%, which results in an overall system detection efficiency of 37%, with excess noise as low as 10(3) counts s(-1). We measure the dark count rate versus the upconversion pump-signal frequency separation and find the results to be consistent with noise photon generation by spontaneous anti-Stokes Raman scattering. These results enable detailed design guidelines for the development of low-noise quantum frequency conversion systems, which will be an important component of fiber-optic quantum networks.

  View details for Web of Science ID 000296568100033

  View details for PubMedID 22108994

• Supercontinuum generation in quasi-phase-matched LiNbO3 waveguide pumped by a Tm-doped fiber laser system OPTICS LETTERS Phillips, C. R., Langrock, C., Pelc, J. S., Fejer, M. M., Jiang, J., Fermann, M. E., Hartl, I. 2011; 36 (19): 3912-3914

  Abstract

  We demonstrate self-referencing of a Tm-doped fiber oscillator-amplifier system by performing octave-spanning supercontinuum generation in a periodically poled lithium niobate waveguide. We model the supercontinuum generation numerically and show good agreement with the experiment.

  View details for Web of Science ID 000295415600066

  View details for PubMedID 21964139

• Supercontinuum generation in quasi-phasematched waveguides OPTICS EXPRESS Phillips, C. R., Langrock, C., Pelc, J. S., Fejer, M. M., Hartl, I., Fermann, M. E. 2011; 19 (20): 18754-18773

  Abstract

  We numerically investigate supercontinuum generation in quasi-phase-matched waveguides using a single-envelope approach to capture second and third order nonlinear processes involved in the generation of octave-spanning spectra. Simulations are shown to agree with experimental results in reverse-proton-exchanged lithium-niobate waveguides. The competition between χ((2)) and χ((3)) self phase modulation effects is discussed. Chirped quasi-phasematched gratings and stimulated Raman scattering are shown to enhance spectral broadening, and the pulse dynamics involved in the broadening processes are explained.

  View details for Web of Science ID 000295373800002

  View details for PubMedID 21996818

• Pyroelectrically induced photorefractive damage in magnesium-doped lithium niobate crystals JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Schwesyg, J. R., Falk, M., Phillips, C. R., Jundt, D. H., Buse, K., Fejer, M. M. 2011; 28 (8): 1973-1987

  View details for Web of Science ID 000293330800028

• Continuous wave monolithic quasi-phase-matched optical parametric oscillator in periodically poled lithium niobate OPTICS LETTERS Phillips, C. R., Pelc, J. S., Fejer, M. M. 2011; 36 (15): 2973-2975

  Abstract

  We demonstrate a monolithic and quasi-phasematched singly resonant cw optical parametric oscillator in periodically poled lithium niobate. The threshold is 1.0 W and the OPO delivers up to 0.98 W signal power tunable between 1750 and 1950 nm (2710 and 2340 nm idler, respectively). We identify cascaded parasitic oscillation effects and analyze their behavior theoretically, showing good agreement with our experiment. The analysis of parasitic effects points the way to improved device designs that should enable stable, compact, and frequency-tunable sources.

  View details for Web of Science ID 000293888000076

  View details for PubMedID 21808376

• Efficiency pedestal in quasi-phase-matching devices with random duty-cycle errors OPTICS LETTERS Pelc, J. S., Phillips, C. R., Chang, D., Langrock, C., Fejer, M. M. 2011; 36 (6): 864-866

  Abstract

  It is shown that random duty-cycle errors in quasi-phase-matching (QPM) nonlinear optical devices enhance the efficiency of processes far from the QPM peak. An analytical theory is shown to agree well with numerical solutions of second-harmonic generation (SHG) in disordered QPM gratings. The measured efficiency of 1550 nm band SHG in a periodically poled lithium niobate (PPLN) waveguide away from the QPM peak agrees with observations of domain disorder in a PPLN wafer by Zygo interferometry. If suppression of parasitic nonlinear interactions is important in a specific application of QPM devices, control of random duty-cycle errors is critical.

  View details for PubMedID 21403710

• Stability of the singly resonant optical parametric oscillator JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Phillips, C. R., Fejer, M. M. 2010; 27 (12): 2687-2699

  View details for Web of Science ID 000284761300032

• Efficiency and phase of optical parametric amplification in chirped quasi-phase-matched gratings OPTICS LETTERS Phillips, C. R., Fejer, M. M. 2010; 35 (18): 3093-3095

  Abstract

  Three-wave nonlinear interactions in chirped quasi-phase-matched (QPM) gratings are shown to exhibit conversion efficiency approaching 100% with increasing input pump and signal intensities, evading backconversion, as long as the idler vanishes at the input and the QPM grating is sufficiently chirped. The signal phase is described in terms of Kerr-like self- and cross-phase modulations, in the cascade χ((3)) approximation. Achieving high gain and efficiency simultaneously can lead to a large nonlinear phase, and the resulting trade-off is discussed.

  View details for Web of Science ID 000281994500032

  View details for PubMedID 20847789

• Characterization and control of pulse shapes in a doubly resonant synchronously pumped optical parametric oscillator APPLIED OPTICS Schaar, J. E., Pelc, J. S., Vodopyanov, K. L., Fejer, M. M. 2010; 49 (24): 4489-4493

  Abstract

  The intracavity signal and idler pulses of a low-loss synchronously pumped doubly resonant optical parametric oscillator were characterized experimentally and simulated numerically versus cavity-length detuning. At operation several hundreds of times above threshold, the detunings that maximize the intracavity average power do not necessarily maximize the temporal overlap of the signal and idler pulses, as is desirable for devices making use of intracavity mixing. Independent control of the signal and idler cavity lengths allowed control of the widths and temporal positioning of the pulses. Numerical studies were performed exploring the intracavity power and temporal overlap of the signal and idler pulses under various group-velocity-mismatch conditions. There was good agreement between the experimental and numerical simulation results.

  View details for Web of Science ID 000281188300002

  View details for PubMedID 20733617

• Optical phase conjugation in phase-modulated transmission systems: experimental comparison of different nonlinearity-compensation methods OPTICS EXPRESS Minzioni, P., Pusino, V., Cristiani, I., Marazzi, L., Martinelli, M., Langrock, C., Fejer, M. M., Degiorgio, V. 2010; 18 (17): 18119-18124

  Abstract

  We experimentally compare the effectiveness of three different optical-phase-conjugation-based nonlinearity-compensation strategies on a transmission system employing phase-modulated signals, and hence affected by the Gordon-Mollenauer effect. We demonstrate that it is possible to obtain significant nonlinearity compensation, but that no improvement is obtained using configurations specifically aimed at the compensation of the nonlinear phase noise.

  View details for DOI 10.1364/OE.18.018119

  View details for Web of Science ID 000281054400057

  View details for PubMedID 20721200

• Influence of domain disorder on parametric noise in quasi-phase-matched quantum frequency converters OPTICS LETTERS Pelc, J. S., Langrock, C., Zhang, Q., Fejer, M. M. 2010; 35 (16): 2804-2806

  Abstract

  Ideal quantum frequency conversion (QFC) devices enable wavelength translation of a quantum state of light while preserving its essential quantum characteristics, namely photon statistics and coherence. However, the generation of noise photons due to spontaneous scattering of the strong classical pump used in the three-wave mixing process can limit QFC fidelity. We experimentally and theoretically characterize the noise properties of a difference-frequency generation device for QFC and find that fabrication errors in the quasi-phase-matching grating enhance generation of noise photons by parametric fluorescence.

  View details for Web of Science ID 000281062400046

  View details for PubMedID 20717463

• Ultrabroadband, highly flexible amplifier for ultrashort midinfrared laser pulses based on aperiodically poled Mg:LiNbO3 OPTICS LETTERS Heese, C., Phillips, C. R., Gallmann, L., Fejer, M. M., Keller, U. 2010; 35 (14): 2340-2342

  Abstract

  We present an amplification medium for optical parametric chirped-pulse amplification that allows for ultrabroadband gain in a collinear configuration. Our approach is based on aperiodic quasi-phase-matching (QPM). For the first demonstration of this method in a mid-IR optical parametric chirped-pulse amplifier, we chose a QPM grating design with a linear chirp of its associated spatial frequencies. The resulting 7.4-mm-long, aperiodically poled Mg:LiNbO(3) amplification crystal has a chirp rate of kappa'=-250 cm(-2) and provides gain over the 800 nm bandwidth centered at 3.4 microm. We were able to generate pulses as short as 75 fs and the pulse energy at the output of the optical parametric amplifier before compression was 1.5 microJ. Low thermal load on the amplification medium allows for operation at a high repetition rate, 100 kHz in our case, and high average power limited only by the available pump power.

  View details for Web of Science ID 000279994400009

  View details for PubMedID 20634823

• Light absorption in undoped congruent and magnesium-doped lithium niobate crystals in the visible wavelength range APPLIED PHYSICS B-LASERS AND OPTICS Schwesyg, J. R., Kajiyama, M. C., Falk, M., Jundt, D. H., Buse, K., Fejer, M. M. 2010; 100 (1): 109-115

  View details for DOI 10.1007/s00340-010-4063-1

  View details for Web of Science ID 000280376100011

• Hong-Ou-Mandel Dip Using Degenerate Photon Pairs from a Single Periodically Poled Lithium Niobate Waveguide with Integrated Mode Demultiplexer JAPANESE JOURNAL OF APPLIED PHYSICS Zhang, Q., Takesue, H., Langrock, C., Xie, X., Fejer, M. M., Yamamoto, Y. 2010; 49 (6)

  View details for DOI 10.1143/JJAP.49.064401

  View details for Web of Science ID 000278963000053

• Theory and simulation of gain-guided noncollinear modes in chirped quasi-phase-matched optical parametric amplifiers JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Charbonneau-Lefort, M., Afeyan, B., Fejer, M. M. 2010; 27 (4): 824-841

  View details for Web of Science ID 000276196000029

• Suppression of mid-infrared light absorption in undoped congruent lithium niobate crystals OPTICS LETTERS Schwesyg, J. R., Phillips, C. R., Ioakeimidi, K., Kajiyama, M. C., Falk, M., Jundt, D. H., Buse, K., Fejer, M. M. 2010; 35 (7): 1070-1072

  Abstract

  Absorption measurements on 5 mol. % MgO-doped and undoped congruent lithium niobate (LiNbO(3)) crystals revealed absorption bands in the wavelength range of 2500-2800 nm, caused by incorporated hydrogen ions. High-temperature annealing was applied to the congruent LiNbO(3) (CLN) crystals, which decreased the absorption significantly. Then the annealed CLN crystals were periodically poled. As an application of the low-loss annealed CLN crystal, the operation of a 1550 nm pumped singly resonant CW optical parametric oscillator, resonant around 2600 nm, using a periodically poled crystal was demonstrated.

  View details for Web of Science ID 000276309300060

  View details for PubMedID 20364220

• Ultrasensitive direct-field retrieval of femtosecond pulses by modified interferometric field autocorrelation OPTICS LETTERS Yang, S., Hsu, C., Lin, S., Lin, Y., Langrock, C., Fejer, M. M. 2009; 34 (20): 3065-3067

  Abstract

  We report on spectral phase retrieval of 50 MHz, 374 fs optical pulses at 1560 nm with 28 aJ coupled pulse energy by measuring two modified interferometric field autocorrelation traces using a 5-cm-long periodically poled lithium niobate waveguide. The corresponding sensitivity is 1.1x10(-7) mW(2), improving on the previous record by about 20 times. The same data traces can also be used to retrieve the power spectrum, given that the ratio of powers at two specific wavelengths is known.

  View details for Web of Science ID 000271374500007

  View details for PubMedID 19838227

• All-Optical Wavelength Conversion of a 100-Gb/s Polarization-Multiplexed Signal OPTICS EXPRESS Martelli, P., Boffi, P., Ferrario, M., Marazzi, L., Parolari, P., Siano, R., Pusino, V., Minzioni, P., Cristiani, I., Langrock, C., Fejer, M. M., Martinelli, M., Degiorgio, V. 2009; 17 (20): 17758-17763

  Abstract

  We present the results of an in-depth experimental investigation about all-optical wavelength conversion of a 100-Gb/s polarization-multiplexed (POLMUX) signal. Each polarization channel is modulated at 25 Gbaud by differential quadrature phase-shift keying (DQPSK). The conversion is realized exploiting the high nonlinear chi((2)) coefficient of a periodically poled lithium niobate waveguide, in a polarization-independent configuration. We find that slight non-idealities in the polarization independent setup of the wavelength converter can significantly impair the performance of POLMUX systems. We show that high-quality wavelength conversion can be nevertheless achieved for both the polarization channels, provided that an accurate optimization of the setup is performed. This is the first demonstration, to the best of our knowledge, of the possibility to obtain penalty-free all-optical wavelength conversion in a 100-Gb/s POLMUX transmission system using direct-detection.

  View details for DOI 10.1364/OE.17.017758

  View details for Web of Science ID 000270295300056

  View details for PubMedID 19907562

• Optical arbitrary waveform characterization via dual-quadrature spectral shearing interferometry OPTICS EXPRESS Miao, H., Leaird, D. E., Langrock, C., Fejer, M. M., Weiner, A. M. 2009; 17 (5): 3381-3389

  Abstract

  We demonstrate a new dual-quadrature spectral shearing interferometry technique appropriate for spectral phase characterization of arbitrary optical waveforms generated by line-by-line shaping of high-repetition- rate (approximately 10 GHz) optical frequency combs. Spectral shearing interferograms are generated through sum-frequency mixing of the frequency comb field with a pair of reference tones generated via intensity modulation of a continuous-wave laser. Although related to the well known SPIDER method, our approach relaxes spectral resolution requirements and operates in a collinear interaction geometry compatible with the use of high sensitivity, aperiodically poled lithium niobate nonlinear waveguide devices.

  View details for Web of Science ID 000264090900038

  View details for PubMedID 19259175

• Tunable 105 ns optical delay for 80 Gb/s RZ-DQPSK, 40 Gb/s RZ-DPSK, and 40 Gb/s RZ-OOK signals using wavelength conversion and chromatic dispersion OPTICS LETTERS Christen, L., Yilmaz, O. F., Nuccio, S., Wu, X., Fazal, I., Willner, A. E., Langrock, C., Fejer, M. M. 2009; 34 (4): 542-544

  Abstract

  We demonstrate a variable, optical-delay element using tunable wavelength conversion in a periodically poled lithium niobate waveguide, dispersion-compensating fiber and intrachannel dispersion compensation. A delay of up to 105 ns is demonstrated using 80 Gb/s return-to-zero differential-quadrature phase-shift keying, 40 Gb/s return-to-zero differential phase-shift keying, and 40 Gb/s return-to-zero on-off keying modulation formats. Bit-error rates <10(-9) are demonstrated for each waveform at various delay settings.

  View details for Web of Science ID 000264274000050

  View details for PubMedID 19373368

• Submicrometer infrared surface imaging using a scanning-probe microscope and an optical parametric oscillator laser OPTICS LETTERS Hill, G. A., Rice, J. H., Meech, S. R., Craig, D. Q., Kuo, P., Vodopyanov, K., Reading, M. 2009; 34 (4): 431-433

  Abstract

  Submicrometer IR surface imaging was performed with a resolution better than the diffraction limit. The apparatus was based on an IR optical parametric oscillator laser and a commercial atomic force microscope and used, as the detection mechanism, induced resonant oscillations in an atomic force microscopy (AFM) cantilever. For the first time to our knowledge this was achieved with top-down illumination and a benchtop IR source, thus extending the range of potential applications of this technique. IR absorption and AFM topography images of polystyrene beads were recorded simultaneously with an image resolution of 200 nm.

  View details for Web of Science ID 000264274000013

  View details for PubMedID 19373331

• All-optical Ti:PPLN wavelength conversion modules for free-space optical transmission links in the mid-infrared OPTICS LETTERS Buechter, K. F., Herrmann, H., Langrock, C., Fejer, M. M., Sohler, W. 2009; 34 (4): 470-472

  Abstract

  Data-format-independent all-optical transmitter and receiver modules for free-space optical communications in the 3.8 mum region have been developed, essentially consisting of Ti-indiffused, periodically poled LiNbO(3) waveguides. Using these modules, conversion of C-band radiation to/from the mid-infrared (MIR) via difference-frequency generation was demonstrated. More than 10 mW of MIR power could be generated with the transmitter unit; the internal low-power conversion efficiency was 69%/W. A free-space MIR link was set up with a -41 dB fiber-to-fiber loss; only -15 dB are due to the parametric processes.

  View details for Web of Science ID 000264274000026

  View details for PubMedID 19373344

• Waveguide-based single-pixel up-conversion infrared spectrometer OPTICS EXPRESS Zhang, Q., Langrock, C., Fejer, M. M., Yamamoto, Y. 2008; 16 (24): 19557-19561

  Abstract

  A periodically poled lithium niobate (PPLN) waveguide-based single-pixel up-conversion infrared spectrometer was demonstrated. Sum-frequency generation between a 1.5-microm-band scanning pump laser and a 1.3-microm-band signal generated visible radiation which was detected by a silicon single-photon detector. The up-conversion spectrometer's sensitivity was two-orders-of-magnitude higher than that of a commercial optical spectrum analyzer.

  View details for Web of Science ID 000261561900016

  View details for PubMedID 19030042

• Room-Temperature Stable Generation of 19 Watts of Single-Frequency 532-nm Radiation in a Periodically Poled Lithium Tantalate Crystal JOURNAL OF LIGHTWAVE TECHNOLOGY Sinha, S., Hum, D. S., Urbanek, K. E., Lee, Y., Digonnet, M. J., Fejer, M. M., Byer, R. L. 2008; 26 (21-24): 3866-3871

  View details for DOI 10.1109/JLT.2008.928396

  View details for Web of Science ID 000263225000043

• Thermo-optic noise in coated mirrors for high-precision optical measurements PHYSICAL REVIEW D Evans, M., Ballmer, S., Fejer, M., Fritschel, P., Harry, G., OGIN, G. 2008; 78 (10)

  View details for DOI 10.1103/PhysRevD.78.102003

  View details for Web of Science ID 000261214100009

• Competing collinear and noncollinear interactions in chirped quasi-phase-matched optical parametric amplifiers JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Charbonneau-Lefort, M., Afeyan, B., Fejer, M. M. 2008; 25 (9): 1402-1413

  View details for Web of Science ID 000259552800001

• Optical phase erasure and its application to format conversion through cascaded second-order processes in periodically poled lithium niobate OPTICS LETTERS Wang, J., Sun, J., Zhang, X., Huang, D., Fejer, M. M. 2008; 33 (16): 1804-1806

  Abstract

  We describe a new optical phase erasure characteristic of periodically poled lithium niobate (PPLN) by using cascaded second-harmonic generation and difference-frequency generation with the signal set at the quasi-phase-matching wavelength. A simple analytical expression is derived clearly explaining the operation principle. It is interesting that the optical phase erasure feature enables an all-optical format conversion from carrier-suppressed return to zero (CSRZ) to return to zero (RZ). We experimentally and theoretically demonstrate a PPLN-based 40 Gbits/s all-optical CSRZ-to-RZ format conversion. Moreover, tunable and multicasting CSRZ-to-RZ format conversions are also verified in the experiment.

  View details for Web of Science ID 000259113300010

  View details for PubMedID 18709093

• Ultrafast all-optical three-input Boolean XOR operation for differential phase-shift keying signals using periodically poled lithium niobate OPTICS LETTERS Wang, J., Sun, J., Zhang, X., Huang, D., Fejer, M. M. 2008; 33 (13): 1419-1421

  Abstract

  We propose and demonstrate that periodically poled lithium niobate (PPLN) can act as an ultrafast three-input XOR gate for differential phase-shift keying (DPSK) signals based on cascaded sum- and difference-frequency generation. PPLN-based all-optical three-input Boolean XOR operations for 20 Gbits/s return-to-zero DPSK (RZ-DPSK), 40 Gbits/s RZ-DPSK, and 20 Gbits/s non-return-to-zero DPSK signals are all successfully verified in the experiment.

  View details for Web of Science ID 000258017800009

  View details for PubMedID 18594651

• Ultralow-power second-harmonic generation frequency-resolved optical gating using aperiodically poled lithium niobate waveguides [Invited] JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Miao, H., Yang, S., Langrock, C., Roussev, R. V., Fejer, M. M., Weiner, A. M. 2008; 25 (6): A41-A53

  View details for Web of Science ID 000257178800007

• Modal frequency degeneracy in thermally loaded optical resonators APPLIED OPTICS Bullington, A. L., Lantz, B. T., Fejer, M. M., Byer, R. L. 2008; 47 (15): 2840-2851

  Abstract

  We observe power coupling from the fundamental mode to frequency-degenerate higher-order spatial modes in optical resonators illuminated with a 30 W laser. Thermally-induced modal frequency degeneracy facilitates power transfer from the fundamental mode to higher-order modes, reduces power coupling into the cavity, and triggers power fluctuations. Modeling thermoelastic deformation of a mirror's surface shows predicted modal frequency degeneracy to be in reasonable agreement with experimental observations. Predictions for the Laser Interferometer Gravitational-wave Observatory (LIGO) show that the circulating fundamental-mode power necessary for gravitational-wave detection is compromised at coating absorptions of 3.8 and 0.44 ppm for Enhanced and Advanced LIGO Fabry-Pérot cavities, respectively.

  View details for Web of Science ID 000256691500013

  View details for PubMedID 18493291

• Ultrabroadband biphotons generated via chirped quasi-phase-matched optical parametric down-conversion PHYSICAL REVIEW LETTERS Nasr, M. B., Carrasco, S., Saleh, B. E., Sergienko, A. V., Teich, M. C., Torres, J. P., Torner, L., Hum, D. S., Fejer, M. M. 2008; 100 (18)

  Abstract

  We generate ultrabroadband biphotons via the process of spontaneous parametric down-conversion (SPDC) in quasi-phase-matched nonlinear gratings that have a linearly chirped wave vector. By using these ultrabroadband biphotons (300-nm bandwidth), we measure the narrowest Hong-Ou-Mandel dip to date, having a full width at half maximum of 7.1 fs. This enables the generation of a high flux of nonoverlapping biphotons with ultrabroad bandwidth, thereby promoting the use of SPDC light in many nonclassical applications.

  View details for DOI 10.1103/PhysRevLett.100.183601

  View details for Web of Science ID 000255771400020

  View details for PubMedID 18518370

• Optical parametric amplifiers using nonuniform quasi-phase-matched gratings. II. Space-time evolution of light pulses JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Charbonneau-Lefort, M., Afeyan, B., Fejer, M. M. 2008; 25 (5): 680-697

  View details for Web of Science ID 000256323200001

• Distribution of Time-Energy Entanglement over 100 km fiber using superconducting single-photon detectors OPTICS EXPRESS Zhang, Q., Takesue, H., Nam, S. W., Langrock, C., Xie, X., Baek, B., Fejer, M. M., Yamamoto, Y. 2008; 16 (8): 5776-5781

  Abstract

  In this letter, we report an experimental realization of distributing entangled photon pairs over 100 km of dispersion-shifted fiber. In the experiment, we used a periodically poled lithium niobate waveguide to generate the time-energy entanglement and superconducting single-photon detectors to detect the photon pairs after 100 km. We also demonstrate that the distributed photon pairs can still be useful for quantum key distribution and other quantum communication tasks.

  View details for Web of Science ID 000255120300071

  View details for PubMedID 18542687

• Optical parametric amplifiers using chirped quasi-phase-matching gratings I: practical design formulas JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Charbonneau-Lefort, M., Afeyan, B., Fejer, M. M. 2008; 25 (4): 463-480

  View details for Web of Science ID 000255410700001

• Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature PHYSICAL REVIEW LETTERS Xia, J., Schemm, E., Deutscher, G., Kivelson, S. A., Bonn, D. A., Hardy, W. N., Liang, R., Siemons, W., Koster, G., Fejer, M. M., Kapitulnik, A. 2008; 100 (12)

  Abstract

  The polar Kerr effect in the high-T_(c) superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order approximately 1 microrad appearing near the pseudogap temperature T(*) and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.

  View details for DOI 10.1103/PhysRevLett.100.127002

  View details for PubMedID 18517903

• Aligning microcavity resonances in silicon photonic-crystal slabs using laser-pumped thermal tuning APPLIED PHYSICS LETTERS Pan, J., Huo, Y., Yamanaka, K., Sandhu, S., Scaccabarozzi, L., Timp, R., Povinelli, M. L., Fan, S., Fejer, M. M., Harris, J. S. 2008; 92 (10)

  View details for DOI 10.1063/1.2896615

  View details for Web of Science ID 000253989300114

• Generation of 10-GHz clock sequential time-bin entanglement OPTICS EXPRESS Zhang, Q., Langrock, C., Takesue, H., Xie, X., Fejer, M., Yamamoto, Y. 2008; 16 (5): 3293-3298

  Abstract

  This letter reports telecom-band sequential time-bin entangled photon-pair generation at a repetition rate of 10 GHz in periodically poled reverse-proton-exchange lithium niobate waveguides based on mode demultiplexing. With up-conversion single-photon detectors, we observed an entangled-photon-pair flux of 313 Hz and a two-photon-interference-fringe visibility of 85.32% without subtraction of accidental noise contributions.

  View details for Web of Science ID 000254121300049

  View details for PubMedID 18542417

• Terahertz sources based on intracavity parametric down-conversion in quasi-phase-matched gallium arsenide IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS Schaar, J. E., Vodopyanov, K. L., Kuo, P. S., Fejer, M. M., Yu, X., Lin, A., Harris, J. S., Bliss, D., Lynch, C., Kozlov, V. G., Hurlbut, W. 2008; 14 (2): 354-362

  View details for DOI 10.1109/JSTQE.2008.917957

  View details for Web of Science ID 000258763400012

• The effects of heating on mechanical loss in tantala/silica optical coatings PHYSICS LETTERS A Abernathy, M. R., Harry, G. M., Travasso, F., Martin, I., Reid, S., Rowan, S., Hough, J., Fejer, M. M., Route, R., Penn, S., Armandula, H., Gretarsson, A. 2008; 372 (2): 87-90

  View details for DOI 10.1016/j.physieta.2007.07.058

  View details for Web of Science ID 000252383400001

• PPLN-based flexible optical logic AND gate IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Sun, J., Sun, Q., Wang, D., Zhang, X., Huang, D., Fejer, M. M. 2008; 20 (1-4): 211-213

  View details for DOI 10.1109/LPT.2007.913227

  View details for Web of Science ID 000253225300068

• Ultrasensitive nonlinear measurements of femtosecond pulses in the telecommunications band by aperiodically poled LiNbO3 waveguides APPLIED OPTICS Yang, S., Miao, H., Jiang, Z., Weiner, A. M., Parameswaran, K. R., Fejer, M. M. 2007; 46 (27): 6759-6769

  Abstract

  We have used aperiodically poled lithium niobate waveguides to perform intensity autocorrelation and frequency-resolved optical gating (FROG) measurements for ultraweak femtosecond pulses at 1.5 microm wavelength. The required pulse energies for intensity autocorrelation and FROG are as low as 52 aJ and 124 aJ, respectively. The corresponding sensitivities are 3.2 x 10(-7) mW(2) and 2.7 x 10(-6) mW(2), about 3-5 orders of magnitude better than the previous records. The high nonlinear conversion efficiency is attributed to the long waveguide structure, and the needed broad phase-matching bandwidth is realized by chirping the poling period. We discuss the theory of intensity autocorrelation and FROG measurements in the presence of different phase-matching bandwidths, and we show, for the first time to our knowledge, that the distorted intensity autocorrelation trace due to a delta-like phase-matching spectrum is described by a modified field autocorrelation function. We also report new experimental results comparing autocorrelation traces measured with chirped and unchirped waveguide samples and demonstrating high-quality FROG measurements for cubic phase waveforms generated in a programmable pulse shaper.

  View details for Web of Science ID 000250457900011

  View details for PubMedID 17882296

• GaAs optical parametric oscillator with circularly polarized and depolarized pump OPTICS LETTERS Kuo, P. S., Vodopyanov, K. L., Fejer, M. M., Yu, X., Harris, J. S., Bliss, D. F., Weyburne, D. 2007; 32 (18): 2735-2737

  Abstract

  We demonstrate an optical parametric oscillator (OPO) based on GaAs pumped with linearly polarized and circularly polarized light and show that the relative OPO thresholds agree with theoretical expectations. For the circularly polarized pump, the threshold was as low as for the [111]-linearly polarized pump case. The pump was also passed through a Lyot depolarizer to produce pseudo-depolarized light, and the OPO threshold in this case was only 22% higher than that for [001]-linearly polarized pump.

  View details for Web of Science ID 000250151900035

  View details for PubMedID 17873952

• Generation of octave-spanning spectra inside reverse-photon-exchanged periodically poled lithium niobate waveguides OPTICS LETTERS Langrock, C., Fejer, M. M., Hard, I., Fermann, M. E. 2007; 32 (17): 2478-2480

  Abstract

  We demonstrate simultaneous octave-level spectral broadening and carrier-envelope-offset sensing of mode-locked Er- and Yb-doped femtosecond fiber lasers using constant-period and chirped reverse-proton-exchanged periodically poled lithium niobate waveguides. Chirped quasi-phase-matching gratings greatly improve spectral broadening of Yb-fiber lasers.

  View details for Web of Science ID 000249908000005

  View details for PubMedID 17767277

• Laser transmitter for undersea communications using third-harmonic generation of fiber-laser system at 1.5 mu m IEEE PHOTONICS TECHNOLOGY LETTERS Polynkin, P., Roussev, R., Fejer, M. M., Peyghambarian, N., Moloney, J. 2007; 19 (17-20): 1328-1330

  View details for DOI 10.1109/LPT.2007.902709

  View details for Web of Science ID 000250212600016

• Optical data packet synchronization and multiplexing using a tunable optical delay based on wavelength conversion and inter-channel chromatic dispersion OPTICS EXPRESS Fazal, I., Yilmaz, O., Nuccio, S., Zhang, B., Willner, A. E., Langrock, C., Fejer, M. M. 2007; 15 (17): 10492-10497

  Abstract

  10 Gb/s non-return-to-zero (NRZ) on-off keyed (OOK) optical data packets are synchronized and time-multiplexed using a 26-ns tunable all-optical delay line. The delay element is based on wavelength conversion in periodically poled lithium niobate (PPLN) waveguides, inter-channel chromatic dispersion in dispersion compensating fiber (DCF) and intra-channel dispersion compensation with a chirped fiber Bragg grating (FBG). Delay reconfiguration time is measured to be less than 300 ps.

  View details for Web of Science ID 000249336000002

  View details for PubMedID 19547402

• Dual-channel-output all-optical logic AND gate at 20 Gbit/s based on cascaded second-order nonlinearity in PPLN waveguide ELECTRONICS LETTERS Wang, J., Sun, J., Sun, Q., Wang, D., Zhou, M., Zhang, X., Huang, D., Fejer, M. M. 2007; 43 (17): 940-942

  View details for DOI 10.1049/el:20071236

  View details for Web of Science ID 000249282200023

• Background-free collinear autocorrelation and frequency-resolved optical gating using mode multiplexing and demultiplexing in aperiodically poled lithium niobate waveguides OPTICS LETTERS Langrock, C., Fejer, M. M. 2007; 32 (16): 2306-2308

  Abstract

  We use mode multiplexing and demultiplexing in apodized aperiodically poled lithium niobate waveguides to enable characterization of picosecond optical pulses in a collinear but background-free way using autocorrelation and second-harmonic frequency-resolved optical gating.

  View details for Web of Science ID 000249327600012

  View details for PubMedID 17700767

• Experimental observation of all-optical non-return-to-zero-to-return-to-zero format conversion based on cascaded second-order nonlinearity assisted by active mode-locking OPTICS LETTERS Wang, J., Sun, J., Sun, Q., Wang, D., Zhou, M., Zhang, X., Huang, D., Fejer, M. M. 2007; 32 (16): 2462-2464

  Abstract

  We report the experimental demonstration of all-optical format conversion by exploiting the cascaded second-harmonic generation and difference-frequency generation (cSHG/DFG) in a periodically poled lithium niobate (PPLN) waveguide assisted by the reflective semiconductor optical amplifier (RSOA)-based active mode-locking. 10 and 20 Gbit/s format conversions from non-return-to-zero (NRZ) to return-to-zero (RZ) are successfully observed. Two schemes with either the NRZ signal or the pump optical clock set at the quasi-phase matching (QPM) wavelength are both verified in the experiment.

  View details for Web of Science ID 000249327600064

  View details for PubMedID 17700819

• Monolithic 160 Gbit/s optical time-division multiplexer OPTICS LETTERS Huang, J., Langrock, C., Xie, X. P., Fejer, M. M. 2007; 32 (16): 2420-2422

  Abstract

  We present the design and experimental characterization of a monolithic optical time-division multiplexer (MUX) for 160 Gbit/s operation based on periodically poled lithium niobate (PPLN) waveguides. Its key figures of merit agree well with theoretical predictions and meet or exceed those of a previously demonstrated PPLN-planar-light-wave-circuit hybrid MUX. The monolithic design has a simpler layout and higher efficiency while keeping the cross talk low.

  View details for Web of Science ID 000249327600050

  View details for PubMedID 17700805

• Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock OPTICS EXPRESS Zhang, Q., Xie, X., Takesue, H., Nam, S. W., Langrock, C., Fejer, M. M., Yamamoto, Y. 2007; 15 (16): 10288-10293

  Abstract

  We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5-mum and a clock of 10 GHz. Using superconducting single photon detectors, we observed a coincidence to accidental count ratio (CAR) as high as 4000. The developed photon-pair source may find broad application in quantum information systems as well as quantum entanglement experiments.

  View details for Web of Science ID 000248753100040

  View details for PubMedID 19547378

• Fiber-feedback continuous-wave and synchronously-pumped singly-resonant ring optical parametric oscillators using reverse-proton-exchanged periodically-poled lithium niobate waveguides OPTICS LETTERS Langrock, C., Fejer, M. M. 2007; 32 (15): 2263-2265

  Abstract

  We describe guided-wave singly-resonant reverse-proton-exchanged (RPE) periodically-poled lithium niobate (PPLN) waveguide ring optical parametric oscillators (OPOs) in which the feedback was provided via a single-mode fiber pigtailed to the waveguide. Wavelength selection was achieved by means of a fiber Bragg grating inside the feedback loop. The SRO threshold for the synchronously-pumped OPO was below 1 mW of average coupled pump power.

  View details for Web of Science ID 000249087200065

  View details for PubMedID 17671604

• All-optical format conversion using a periodically poled lithium niobate waveguide and a reflective semiconductor optical amplifier APPLIED PHYSICS LETTERS Wang, J., Sun, J., Sun, Q., Wang, D., Zhou, M., Zhang, X., Huang, D. 2007; 91 (5)

  View details for DOI 10.1063/1.2761513

  View details for Web of Science ID 000248595800007

• Linearly polarized, 3.35 W narrow-linewidth, 1150 nm fiber master oscillator power amplifier for frequency doubling to the yellow OPTICS LETTERS Sinha, S., Urbanek, K. E., Hum, D. S., Digonnet, M. J., Fejer, M. M., Byer, R. L. 2007; 32 (11): 1530-1532

  Abstract

  A high-power linearly polarized Yb-doped silica fiber master oscillator power amplifier at 1150 nm is reported. It produced 3.35 W cw and 2.33 W of average power in 1 micros pulses at a 100 kHz repetition rate, both with 8 pm linewidth. This is the first report, to the best of our knowledge, of a high-power Yb-doped fiber amplifier at a wavelength longer than 1135 nm. The pulsed output was frequency doubled in a bulk periodically poled near-stoichiometric LiTaO(3) chip to generate 976 mW of average power at 575 nm with an overall system optical-to-optical efficiency of 9.8% with respect to launched pump power.

  View details for Web of Science ID 000247756600062

  View details for PubMedID 17546178

• Intracavity terahertz-wave generation in a synchronously pumped optical parametric oscillator using quasi-phase-matched GaAs OPTICS LETTERS Schaar, J. E., Vodopyanov, K. L., Fejer, M. M. 2007; 32 (10): 1284-1286

  Abstract

  We generated 1 mW of average output power at 2.8 THz (bandwidth of approximately 300 GHz) in a diffraction-limited beam by placing a 6-mm-long quasi-phase-matched GaAs crystal inside the cavity of a synchronously pumped optical parametric oscillator (OPO). The OPO used type-II-phase-matched periodically poled lithium niobate as a gain medium and was pumped by a mode-locked laser at 1064 nm, with a 7 ps pulse duration, 50 MHz repetition rate, and 10 W average output power. The terahertz radiation was generated by difference frequency mixing between the signal and idler waves of the near-degenerate doubly resonant OPO.

  View details for Web of Science ID 000246121000030

  View details for PubMedID 17440562

• Optical properties and ferroelectric engineering of vapor-transport-equilibrated, near-stoichiometric lithium tantalate for frequency conversion JOURNAL OF APPLIED PHYSICS Hum, D. S., Route, R. K., Miller, G. D., Kondilenko, V., Alexandrovski, A., Huang, J., Urbanek, K., Byer, R. L., Fejer, M. M. 2007; 101 (9)

  View details for DOI 10.1063/1.2723867

  View details for Web of Science ID 000246567900008

• Quasi-phase-matched second-harmonic generation of 532 nm radiation in 25 degrees-rotated, x-cut, near-stoichiometric, lithium tantalate fabricated by vapor transport equilibration OPTICS LETTERS Hum, D. S., Route, R. K., Fejer, M. M. 2007; 32 (8): 961-963

  Abstract

  Quasi-phase-matched second-harmonic generation of 532 nm radiation in 25 degrees -rotated, x-cut, near-stoichiometric lithium tantalate has been performed. Using a face-normal topology for frequency conversion applications allows scalable surface area to avoid surface and volume damage in high-power interactions. First-order, quasi-phase-matched second-harmonic generation was achieved using near-stoichiometric lithium tantalate fabricated by vapor transport equilibration. These crystals supported 1 J of 1064 nm radiation and generated 21 mJ of 532 nm radiation from a 7 ns, Q-switched Nd:YAG laser within a factor of 4.2 of expectation.

  View details for Web of Science ID 000245520400027

  View details for PubMedID 17375168

• Polarization-insensitive ultralow-power second-harmonic generation frequency-resolved optical gating OPTICS LETTERS Miao, H., Weiner, A. M., Langrock, C., Roussev, R. V., Fejer, M. M. 2007; 32 (7): 874-876

  Abstract

  We demonstrate polarization-insensitive ultralow-power second-harmonic generation frequency-resolved optical gating (FROG) measurements with a fiber-pigtailed, aperiodically poled lithium niobate waveguide. By scrambling the polarization much faster than the measurement integration time, we eliminate the impairment that frequency-independent random polarization fluctuations induce in FROG measurements. As a result we are able to retrieve intensity and phase profiles of few hundred femtosecond optical pulses with 50 MHz repetition rates at 5.2 nW coupled average power without control of the input polarization.

  View details for Web of Science ID 000245109900049

  View details for PubMedID 17339966

• Multiphoton absorption and nonlinear refraction of GaAs in the mid-infrared OPTICS LETTERS Hurlbut, W. C., Lee, Y., Vodopyanov, K. L., Kuo, P. S., Fejer, M. M. 2007; 32 (6): 668-670

  Abstract

  We report the wavelength dependencies of the two- and three-photon absorption coefficients of undoped GaAs in the spectral range 1.3-3.5 microm, as well as nonlinear refractive index n2 in the range 1.7-3.25 microm. The data were obtained by using the single-beam Z-scan method with 100-fs-long optical pulses. Anisotropy of the three-photon absorption coefficient was observed and found to be consistent with the crystal symmetry of GaAs.

  View details for Web of Science ID 000244726900029

  View details for PubMedID 17308596

• Wavefront distortion of the reflected and diffracted beams produced by the thermoelastic deformation of a diffraction grating heated by a Gaussian laser beam JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Lu, P. P., Bullington, A. L., Beyersdorf, P., Traeger, S., Mansell, J., Beausoleil, R., Gustafson, E. K., Byer, R. L., Fejer, M. M. 2007; 24 (3): 659-668

  Abstract

  It may be advantageous in advanced gravitational-wave detectors to replace conventional beam splitters and Fabry-Perot input mirrors with diffractive elements. In each of these applications, the wavefront distortions produced by the absorption and subsequent heating of the grating can limit the maximum useful optical power. We present data on the wavefront distortions induced in a laser probe beam for both the reflected and diffracted beams from a grating that is heated by a Gaussian laser beam and compare these results to a simple theory of the wavefront distortions induced by thermoelastic deformations.

  View details for Web of Science ID 000244407300010

  View details for PubMedID 17301855

• Cascaded optical parametric generation in reverse-proton-exchange lithium niobate waveguides JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Xie, X., Fejer, M. M. 2007; 24 (3): 585-591

  View details for Web of Science ID 000244587900023

• Quasi-phasematching COMPTES RENDUS PHYSIQUE Hum, D. S., Fejer, M. M. 2007; 8 (2): 180-198

  View details for DOI 10.1016/j.crhy.2006.10.022

  View details for Web of Science ID 000245841500006

• Sensing and compensation of femtosecond waveform distortion induced by all-order polarization mode dispersion at selected polarization states OPTICS LETTERS Miao, H., Weiner, A. M., Langrock, C., Roussev, R. V., Fejer, M. M. 2007; 32 (4): 424-426

  Abstract

  We demonstrate full characterization of femtosecond pulse distortion induced by all-order polarization mode dispersion (PMD) at selected polarization states via second-harmonic generation (SHG) frequency-resolved optical gating (FROG) measurements at an average power of under 28 nW. By applying the inverse of the measured spectral phase via a programmable pulse shaper, we compress the distorted pulses from more than 3 ps to nearly bandwidth-limited durations of less than 500 fs. Our results show that SHG FROG measurements performed by using fiber-pigtailed aperiodically poled lithium niobate waveguides can serve as a robust and sensitive tool for characterization of PMD-induced spectral phase.

  View details for Web of Science ID 000244083700034

  View details for PubMedID 17356674

• Titania-doped tantala/silica coatings for gravitational-wave detection CLASSICAL AND QUANTUM GRAVITY Harry, G. M., Abernathy, M. R., Becerra-Toledo, A. E., Armandula, H., Black, E., Dooley, K., Eichenfield, M., Nwabugwu, C., Villar, A., Crooks, D. R., Cagnoli, G., Hough, J., How, C. R., MacLaren, I., Murray, P., Reid, S., Rowan, S., Sneddon, P. H., Fejer, M. M., Route, R., Penn, S. D., Ganau, P., Mackowski, J., Michel, C., Pinard, L., Remillieux, A. 2007; 24 (2): 405-415

  View details for DOI 10.1088/0264-9381/24/2/008

  View details for Web of Science ID 000242954900008

• 100 km differential phase shift quantum key distribution experiment with low jitter up-conversion detectors OPTICS EXPRESS Diamanti, E., Takesue, H., Langrock, C., Fejer, M. M., Yamamoto, Y. 2006; 14 (26): 13073-13082

  Abstract

  We present a quantum key distribution experiment in which keys that were secure against all individual eavesdropping attacks allowed by quantum mechanics were distributed over 100 km of optical fiber. We implemented the differential phase shift quantum key distribution protocol and used low timing jitter 1.55 microm single-photon detectors based on frequency up-conversion in periodically poled lithium niobate waveguides and silicon avalanche photodiodes. Based on the security analysis of the protocol against general individual attacks, we generated secure keys at a practical rate of 166 bit/s over 100 km of fiber. The use of the low jitter detectors also increased the sifted key generation rate to 2 Mbit/s over 10 km of fiber.

  View details for Web of Science ID 000243144600057

  View details for PubMedID 19532203

• 1.5-mu m single photon counting using polarization-independent up-conversion detector OPTICS EXPRESS Takesue, H., Diamanti, E., Langrock, C., Fejer, M. M., Yamamoto, Y. 2006; 14 (26): 13067-13072

  Abstract

  We report a 1.5- mum band polarization independent single photon detector based on frequency up-conversion in periodically poled lithium niobate (PPLN) waveguides. To overcome the polarization dependence of the PPLN waveguides, we employed a polarization diversity configuration composed of two up-conversion detectors connected with a polarization beam splitter. We experimentally confirmed polarization independent single photon counting using our detector. We undertook a proof-of-principle differential phase shift quantum key distribution experiment using the detector, and confirmed that the sifted key rate and error rate remained stable when the polarization state was changed during single photon transmission.

  View details for Web of Science ID 000243144600056

  View details for PubMedID 19532202

• Enhanced second-harmonic generation in AlGaAs/AlxOy tightly confining waveguides and resonant cavities OPTICS LETTERS Scaccabarozzi, L., Fejer, M. M., Huo, Y., Fan, S., Yu, X., Harris, J. S. 2006; 31 (24): 3626-3628

  Abstract

  We demonstrate second-harmonic generation (SHG) from sub-micrometer-sized AlGaAs/AlxOy artificially birefringent waveguides. The normalized conversion efficiency is the highest ever reported. We further enhanced the SHG using a waveguide-embedded cavity formed by dichroic mirrors. Resonant enhancements as high as approximately 10x were observed. Such devices could be potentially used as highly efficient, ultracompact frequency converters in integrated photonic circuits.

  View details for Web of Science ID 000242560400022

  View details for PubMedID 17130925

• Long-wave IR chemical sensing based on difference frequency generation in orientation-patterned GaAs APPLIED PHYSICS B-LASERS AND OPTICS Bisson, S. E., Kulp, T. J., Levi, O., Harris, J. S., Fejer, M. M. 2006; 85 (2-3): 199-206

  View details for DOI 10.1007/s00340-006-2311-1

  View details for Web of Science ID 000240724900005

• Generation of multicycle terahertz pulses via optical rectification in periodically inverted GaAs structures APPLIED PHYSICS LETTERS Lee, Y., Hurlbut, W. C., Vodopyanov, K. L., Fejer, M. M., Kozlov, V. G. 2006; 89 (18)

  View details for DOI 10.1063/1.2367661

  View details for Web of Science ID 000241757500004

• Fiber-laser frequency combs with subhertz relative linewidths OPTICS LETTERS Swann, W. C., McFerran, J. J., Coddington, I., Newbury, N. R., Hartl, I., Fermann, M. E., Westbrook, P. S., Nicholson, J. W., Feder, K. S., Langrock, C., Fejer, M. M. 2006; 31 (20): 3046-3048

  Abstract

  We investigate the comb linewidths of self-referenced, fiber-laser-based frequency combs by measuring the heterodyne beat signal between two independent frequency combs that are phase locked to a common cw optical reference. We demonstrate that the optical comb lines can exhibit instrument-limited, subhertz relative linewidths across the comb spectra from 1200 to 1720 nm with a residual integrated optical phase jitter of approximately 1 rad in a 60 mHz to 500 kHz bandwidth. The projected relative pulse timing jitter is approximately 1 fs. This performance approaches that of Ti:sapphire frequency combs.

  View details for Web of Science ID 000241116200031

  View details for PubMedID 17001395

• 10-GHz clock differential phase shift quantum key distribution experiment OPTICS EXPRESS Takesue, H., Diamanti, E., Langrock, C., Fejer, M. M., Yamamoto, Y. 2006; 14 (20): 9522-9530

  Abstract

  This paper reports the first quantum key distribution experiment implemented with a 10-GHz clock frequency. We used a 10-GHz actively mode-locked fiber laser as a source of short coherent pulses and single photon detectors based on frequency up-conversion in periodically poled lithium niobate waveguides. The use of short pulses and low-jitter upconversion detectors significantly reduced the bit errors caused by detector dark counts even after long-distance transmission of a weak coherent state pulse. We employed the differential phase shift quantum key distribution protocol, and generated sifted keys at a rate of 3.7 kbit/s over a 105 km fiber with a bit error rate of 9.7%.

  View details for Web of Science ID 000240981000069

  View details for PubMedID 19529339

• Terahertz-wave generation in quasi-phase-matched GaAs APPLIED PHYSICS LETTERS Vodopyanov, K. L., Fejer, M. M., Yu, X., Harris, J. S., Lee, Y., Hurlbut, W. C., Kozlov, V. G., Bliss, D., Lynch, C. 2006; 89 (14)

  View details for DOI 10.1063/1.2357551

  View details for Web of Science ID 000241056900019

• Cavity with a deformable mirror for tailoring the shape of the eigenmode APPLIED OPTICS Beyersdorf, P. T., Zappe, S., Fejer, M. M., Burkhardt, M. 2006; 45 (26): 6723-6728

  Abstract

  We demonstrate an optical cavity that supports an eigenmode with a flattop spatial profile--a profile that has been proposed for the cavities in the Advanced Laser Interferometer Gravitational Wave Observatory, the second-generation laser interferometric gravitational wave observatory--because it provides better averaging of the spatially dependent displacement noise on the surface of the mirror than a Gaussian beam. We describe the deformable mirror that we fabricated to tailor the shape of the eigenmode of the cavity and show that this cavity is a factor of 2 more sensitive to misalignments than a comparable cavity with spherical mirrors supporting an eigenmode with a Gaussian profile.

  View details for Web of Science ID 000240355100011

  View details for PubMedID 16926904

• Tunable wavelength conversion of ps-pulses exploiting cascaded sum- and difference frequency generation in a PPLN-fiber ring laser IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Sun, J., Kurz, J. R., Fejer, M. M. 2006; 18 (17-20): 2093-2095

  View details for DOI 10.1109/LPT.2006.883213

  View details for Web of Science ID 000241438300098

• Modified Sagnac interferometer for high-sensitivity magneto-optic measurements at cryogenic temperatures APPLIED PHYSICS LETTERS Xia, J., Beyersdorf, P. T., Fejer, M. M., Kapitulnik, A. 2006; 89 (6)

  View details for DOI 10.1063/1.2336620

  View details for Web of Science ID 000239690800069

• Experimental measurements of mechanical dissipation associated with dielectric coatings formed using SiO2, Ta2O5 and Al2O3 CLASSICAL AND QUANTUM GRAVITY Crooks, D. R., Cagnoli, G., Fejer, M. M., Harry, G., Hough, J., Khuri-Yakub, B. T., Penn, S., Route, R., Rowan, S., Sneddon, P. H., Wygant, I. O., Yaralioglu, G. G. 2006; 23 (15): 4953-4965

  View details for DOI 10.1088/0264-9381/23/15/014

  View details for Web of Science ID 000239416800014

• Narrow-linewidth near-degenerate optical parametric generation achieved with quasi-group-velocity-matching in lithium niobate waveguides OPTICS LETTERS Xie, X., Huang, J., Fejer, M. M. 2006; 31 (14): 2190-2192

  Abstract

  We demonstrate narrow-linewidth near-degenerate optical parametric generation in reverse-proton-exchange lithium niobate waveguides with quasi-group-velocity-matching, which is realized by using wavelength-selective directional couplers and tight-radius bends. With appropriate designs for 1.6 ps long pump pulses at 785.1 nm we obtained near-degenerate signal (idler) pulses with a time-bandwidth product as low as 1.1, compared with 10.5 for conventional devices without quasi-group-velocity-matching. This improvement in the temporal property is a result of both a pulse compression effect and a filter effect coming from our scheme of quasi-group-velocity-matching.

  View details for Web of Science ID 000238960300032

  View details for PubMedID 16794722

• All-optical signal processing using chi((2)) nonlinearities in guided-wave devices JOURNAL OF LIGHTWAVE TECHNOLOGY Langrock, C., Kumar, S., McGeehan, J. E., Willner, A. E., Fejer, M. M. 2006; 24 (7): 2579-2592

  View details for DOI 10.1109/JLT.2006.874605

  View details for Web of Science ID 000238897200011

• High-power source of THz radiation based on orientation-patterned GaAs pumped by a fiber laser OPTICS EXPRESS Imeshev, G., Fermann, M. E., Vodopyanov, K. L., Fejer, M. M., Yu, X., Harris, J. S., Bliss, D., Lynch, C. 2006; 14 (10): 4439-4444

  Abstract

  We demonstrate a new source of frequency-tunable THz wave packets based on parametric down-conversion process in orientation-patterned GaAs (OP-GaAs) that produces muW-level THz average powers at the repetition rate of 100 MHz. The OP-GaAs crystal is pumped by a compact all-fiber femtosecond laser operating at the wavelength of 2 mum. Such combination of fiber laser and OP-GaAs technologies promises a practical source of THz radiation which should be suitable for many applications including imaging and spectroscopy.

  View details for Web of Science ID 000237608600026

  View details for PubMedID 19516596

• Experimental demonstration of nonlinearity and dispersion, compensation in an embedded link by optical phase conjugation IEEE PHOTONICS TECHNOLOGY LETTERS Minzioni, P., Cristiani, I., Degiorgio, V., Marazzi, L., Martinelli, M., Langrock, C., Fejer, M. M. 2006; 18 (9-12): 995-997

  View details for DOI 10.1109/LPT.2006.873547

  View details for Web of Science ID 000238708300001

• 1.5 mu m photon-counting optical time-domain reflectometry with a single-photon detector based on upconversion in a periodically poled lithium niobate waveguide OPTICS LETTERS Diamanti, E., Langrock, C., Fejer, M. M., Yamamoto, Y., Takesue, H. 2006; 31 (6): 727-729

  Abstract

  Optical time-domain reflectometry (OTDR) is one of the most powerful tools in the characterization of optical fiber links. We demonstrate a photon-counting OTDR system at 1.5 microm with a single-photon detector, which combines frequency upconversion in a periodically poled lithium niobate waveguide and a silicon avalanche photodiode. The system exhibits high sensitivity, good spatial resolution, and short measurement time.

  View details for Web of Science ID 000235833400017

  View details for PubMedID 16544604

• Two-spatial-mode parametric amplifier in lithium niobate waveguides with asymmetric Y junctions OPTICS LETTERS Xie, X. P., Fejer, M. M. 2006; 31 (6): 799-801

  Abstract

  For optical parametric amplifiers in proton-exchange waveguide devices reported to date, both the signal and the idler photons are in the TM00 mode, causing difficulty in distinguishing signal from idler. We report a two-mode optical parametric amplifier. The key components, asymmetric Y junctions, successfully launch the pump wave in a pure TM10 mode and separate the signal and the idler in the TM10 and TM00 modes with a power ratio of as much as 27.5 dB. With high parametric gain, optical parametric generation with a threshold of 300 pJ/pulse was demonstrated for 1.8 ps long pump pulses near 780 nm. These periodically poled lithium niobate waveguides are efficient integrable photon sources.

  View details for Web of Science ID 000235833400041

  View details for PubMedID 16544628

• Mechanical dissipation in silicon flexures PHYSICS LETTERS A Reid, S., Cagnoli, G., Crooks, D. R., Hough, J., Murray, P., Rowan, S., Fejer, M. M., Route, R., Zappe, S. 2006; 351 (4-5): 205-211

  View details for DOI 10.1016/j.physleta.2005.10.103

  View details for Web of Science ID 000236005900001

• Amplitude modulation and apodization of quasi-phase-matched interactions OPTICS LETTERS Huang, J., Xie, X. P., Langrock, C., Roussev, R. V., Hum, D. S., Fejer, M. M. 2006; 31 (5): 604-606

  Abstract

  We propose several techniques to modulate the local amplitude of quasi-phase-matched (QPM) interactions in periodically poled lithium niobate waveguides and demonstrate apodization by using each of these techniques. When the hard edges are removed in the spatial profile of the nonlinear coupling, the sidelobes of the frequency tuning curves are suppressed by 13 dB or more, compared with a uniform grating, consistent with theoretical predictions. The sidelobe-suppressed gratings are useful for frequency conversion devices in optical communication systems to minimize interchannel cross talk, while the amplitude modulation techniques in general have potential uses in applications that require altering the tuning curve shapes.

  View details for Web of Science ID 000235532600014

  View details for PubMedID 16570412

• Thermal noise from optical coatings in gravitational wave detectors APPLIED OPTICS Harry, G. M., Armandula, H., Black, E., Crooks, D. R., Cagnoli, G., Hough, J., Murray, P., Reid, S., Rowan, S., Sneddon, P., Fejer, M. M., Route, R., Penn, S. D. 2006; 45 (7): 1569-1574

  Abstract

  Gravitational waves are a prediction of Einstein's general theory of relativity. These waves are created by massive objects, like neutron stars or black holes, oscillating at speeds appreciable to the speed of light. The detectable effect on the Earth of these waves is extremely small, however, creating strains of the order of 10(-21). There are a number of basic physics experiments around the world designed to detect these waves by using interferometers with very long arms, up to 4 km in length. The next-generation interferometers are currently being designed, and the thermal noise in the mirrors will set the sensitivity over much of the usable bandwidth. Thermal noise arising from mechanical loss in the optical coatings put on the mirrors will be a significant source of noise. Achieving higher sensitivity through lower mechanical loss coatings, while preserving the crucial optical and thermal properties, is an area of active research right now.

  View details for Web of Science ID 000235770000043

  View details for PubMedID 16539265

• Efficient yellow-light generation by frequency doubling a narrow-linewidth 1150 nm ytterbium fiber oscillator OPTICS LETTERS Sinha, S., Langrock, C., Digonnet, M. J., Fejer, M. M., Byer, R. L. 2006; 31 (3): 347-349

  Abstract

  A linearly polarized, narrow-linewidth, diode-pumped, Yb-doped silica-fiber oscillator operating at 1150 nm was frequency doubled to produce 40 mW of 575 nm radiation. The oscillator generated 89 mW of cw linearly polarized output power and was tunable over 0.80 nm. The laser output was coupled to a periodically poled LiNbO3 waveguide that converted 67% of the coupled power to the yellow. The system was fully integrated, with no free-space optics, and had an overall optical-to-optical efficiency of 7.0% with respect to the incident diode-laser pump power.

  View details for Web of Science ID 000234961100019

  View details for PubMedID 16480204

• Origin of apparent resonance mode splitting in bent long-period fiber gratings JOURNAL OF LIGHTWAVE TECHNOLOGY Block, U. L., Dangui, V., Digonnet, M. J., Fejer, M. M. 2006; 24 (2): 1027-1034

  View details for DOI 10.1109/JLT.2005.862430

  View details for Web of Science ID 000235297600048

• Optical parametric generation of a mid-infrared continuum in orientation-patterned GaAs OPTICS LETTERS Kuo, P. S., Vodopyanov, K. L., Fejer, M. M., Simanovskii, D. M., Yu, X., Harris, J. S., Bliss, D., Weyburne, D. 2006; 31 (1): 71-73

  Abstract

  We have generated an ultrabroad mid-infrared continuum by using single-pass optical parametric generation (OPG) in orientation-patterned GaAs (OP-GaAs). The spectrum spans more than an octave, from 4.5 to 10.7 microm, measured 20 dB down from the peak. The 17.5 mm long, 0.5 mm thick, all-epitaxially-grown OP-GaAs sample with a 166.6-microm quasi-phase-matching period was pumped with 3.1-3.3 microm wavelength, 1 ps pulses up to 2 microJ in energy. The OPG threshold was observed at 55 nJ pump energy with the pump polarized along the [111] crystal direction. The slope efficiency near threshold was 51%, and the external conversion efficiency was as high as 15%.

  View details for Web of Science ID 000234181600023

  View details for PubMedID 16419881

• Efficient continuous wave second harmonic generation pumped at 1.55 mu m in quasi-phase-matched AlGaAs waveguides OPTICS EXPRESS Yu, X., Scaccabarozzi, L., Harris, J. S., Kuo, P. S., Fejer, M. M. 2005; 13 (26): 10742-10748

  Abstract

  We have fabricated quasi-phase-matched AlGaAs waveguides for continuous-wave second-harmonic generation (SHG) pumped around 1.55 microm. We find that the losses, which limit the conversion efficiency of this type of waveguide, are resulted from two corrugations--the initial template corrugation and the regrowth-induced domain-boundary corrugations. We are able to reduce the waveguide loss by improving the growth conditions. The waveguide loss is 6-7 dB/cm at 1.55 microm, measured using the Fabry-Perot method. A record internal SHG conversion efficiency of 23 %W-1 for AlGaAs waveguides is achieved using a 5-mm-long waveguide with a pump wavelength of 1.568 microm.

  View details for Web of Science ID 000234263000032

  View details for PubMedID 19503290

• Differential phase shift quantum key distribution experiment over 105km fibre NEW JOURNAL OF PHYSICS Takesue, H., Diamanti, E., Honjo, T., Langrock, C., Fejer, M. M., Inoue, K., Yamamoto, Y. 2005; 7

  View details for DOI 10.1088/1367-2630/7/1/232

  View details for Web of Science ID 000233612000001

• Integrated self-referenced frequency-comb laser based on a combination of fiber and waveguide technology OPTICS EXPRESS Hartl, I., Imeshev, G., Fermann, M. E., Langrock, C., Fejer, M. M. 2005; 13 (17): 6490-6496

  Abstract

  An optically integrated self-referenced frequency comb laser is demonstrated. The system consists of a passively-modelocked Er-fiber laser, a butt-coupled periodically poled lithium niobate (PPLN) waveguide phase-sensor and an electronic feedback loop for carrier-envelope-offset (CEO) phase stabilization. The fceo-beat-signal has a linewidth of 62 kHz and is detected with a S/N-ratio of 40 dB, with greatly reduced pulse energy requirements compared to bulk crystal phase-sensors. To our knowledge this is the first self-referenced frequency-comb system entirely based on guided-wave technology.

  View details for Web of Science ID 000231375000020

  View details for PubMedID 19498664

• Ultrasensitive second-harmonic generation frequency-resolved optical gating by aperiodically poled LiNbO3 waveguides at 1.5 mu m OPTICS LETTERS Yang, S. D., Weiner, A. M., Parameswaran, K. R., Fejer, M. M. 2005; 30 (16): 2164-2166

  Abstract

  We retrieve intensity and phase profiles of 280 fs, 50 MHz optical pulses with 124 aJ coupled pulse energy (960 photons) by second-harmonic generation (SHG) frequency-resolved optical gating, using aperiodically poled LiNbO3 waveguides. The strong nonlinear interaction that is due to confinement within the micrometer-sized waveguide structure and the linearly chirped poling period contribute, respectively, to high SHG efficiency and broad phase-matching bandwidth. The achieved sensitivity is 2.7 x 10(-6) mW2, improving on the previous record for self-referenced complete pulse characterization by 5 orders of magnitude.

  View details for Web of Science ID 000231072700038

  View details for PubMedID 16127944

• Engineering of multicolor spatial solitons with chirped-period quasi-phase-matching gratings in optical parametric amplification OPTICS LETTERS Schober, A. M., Fejer, M. M., Carrasco, S., Torner, L. 2005; 30 (15): 1983-1985

  Abstract

  We demonstrate the excitation of solitons in a parametric amplifier with enhanced signal content through the use of a chirped-period quasi-phase-matching grating. This technique affords a low soliton threshold at the input end of a parametric amplifier, and the subsequent transformation to a desired soliton that exists at nonzero wave-vector mismatch through the use of a linearly chirped quasi-phase-matching grating. This approach has an advantage over direct excitation of solitons at nonzero wave-vector mismatch in uniform nonlinear materials and holds potential for improving the efficiency and mode quality of high-gain parametric amplifiers.

  View details for Web of Science ID 000230714400023

  View details for PubMedID 16092240

• Broadband quasi-phase-matched second-harmonic generation of ultrashort optical pulses with spectral angular dispersion JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Schober, A. M., Charbonneau-Lefort, M., Fejer, M. M. 2005; 22 (8): 1699-1713

  View details for Web of Science ID 000231158000015

• Highly efficient single-photon detection at communication wavelengths by use of upconversion in reverse-proton-exchanged periodically poled LiNbO3 waveguides OPTICS LETTERS Langrock, C., Diamanti, E., Roussev, R. V., Yamamoto, Y., Fejer, M. M., Takesue, H. 2005; 30 (13): 1725-1727

  Abstract

  Conventional single-photon detectors at communication wavelengths suffer from low quantum efficiencies and large dark counts. We present a single-photon detection system, operating at communication wavelengths, based on guided-wave frequency upconversion in a nonlinear crystal with an overall system detection efficiency (upconversion + detection) exceeding 46% at 1.56 microm. This system consists of a fiber-pigtailed reverse-proton-exchanged periodically poled LiNbO3 waveguide device in conjunction with a silicon-based single-photon counting module.

  View details for Web of Science ID 000230193000043

  View details for PubMedID 16075551

• Reconfigurable all-optical code translation in spectrally phase-coded O-CDMA JOURNAL OF LIGHTWAVE TECHNOLOGY Jiang, Z., Seo, D. S., Leaird, D. E., Roussev, R. V., Langrock, C., Fejer, M. M., Weiner, A. M. 2005; 23 (6): 1979-1990

  View details for DOI 10.1109/JLT.2005.849937

  View details for Web of Science ID 000229752700002

• Limits on gravitational-wave emission from selected pulsars using LIGO data PHYSICAL REVIEW LETTERS Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Araya, M., Armandula, H., Ashley, M., Asiri, F., Aufmuth, P., Aulbert, C., Babak, S., Balasubramanian, R., Ballmer, S., Barish, B. C., Barker, C., Barker, D., Barnes, M., Barr, B., Barton, M. A., Bayer, K., Beausoleil, R., Belczynski, K., Bennett, R., Berukoff, S. J., Betzwieser, J., Bhawal, B., Bilenko, I. A., Billingsley, G., Black, E., Blackburn, K., Blackburn, L., Bland, B., Bochner, B., Bogue, L., Bork, R., Bose, S., Brady, P. R., Braginsky, V. B., Brau, J. E., Brown, D. A., Bullington, A., Bunkowski, A., Buonanno, A., Burgess, R., Busby, D., Butler, W. E., Byer, R. L., Cadonati, L., Cagnoli, G., Camp, J. B., Cantley, C. A., Cardenas, L., Carter, K., Casey, M. M., Castiglione, J., Chandler, A., Chapsky, J., Charlton, P., Chatterji, S., Chelkowski, S., Chen, Y., Chickarmane, V., Chin, D., Christensen, N., Churches, D., Cokelaer, T., Colacino, C., Coldwell, R., Coles, M., Cook, D., Corbitt, T., Coyne, D., Creighton, J. D., Creighton, T. D., Crooks, D. R., Csatorday, P., Cusack, B. J., Cutler, C., D'Ambrosio, E., Danzmann, K., Daw, E., DeBra, D., Delker, T., Dergachev, V., DeSalvo, R., Dhurandhar, S., Di Credico, A., Diaz, M., Ding, H., Drever, R. W., Dupuis, R. J., Edlund, J. A., Ehrens, P., Elliffe, E. J., Etzel, T., Evans, M., Evans, T., Fairhurst, S., Fallnich, C., Farnham, D., Fejer, M. M., Findley, T., Fine, M., Finn, L. S., Franzen, K. Y., Freise, A., Frey, R., Fritschel, P., Frolov, V. V., Fyffe, M., Ganezer, K. S., Garofoli, J., Giaime, J. A., Gillespie, A., Goda, K., Gonzalez, G., Gossler, S., Grandclement, P., Grant, A., Gray, C., Gretarsson, A. M., Grimmett, D., GROTE, H., Grunewald, S., Guenther, M., Gustafson, E., Gustafson, R., Hamilton, W. O., Hammond, M., Hanson, J., Hardham, C., Harms, J., Harry, G., Hartunian, A., Heefner, J., Hefetz, Y., Heinzel, G., Heng, I. S., Hennessy, M., Hepler, N., Heptonstall, A., Heurs, M., Hewitson, M., Hild, S., Hindman, N., Hoang, P., Hough, J., Hrynevych, M., Hua, W., Ito, M., Itoh, Y., Ivanov, A., Jennrich, O., Johnson, B., Johnson, W. W., Johnston, W. R., Jones, D. I., Jones, L., Jungwirth, D., Kalogera, V., Katsavounidis, E., Kawabe, K., Kawamura, S., Kells, W., Kern, J., Khan, A., Killbourn, S., Killow, C. J., Kim, C., King, C., King, P., Klimenko, S., Koranda, S., Kotter, K., Kovalik, J., Kozak, D., Krishnan, B., Landry, M., Langdale, J., Lantz, B., Lawrence, R., Lazzarini, A., Lei, M., Leonor, I., Libbrecht, K., Libson, A., Lindquist, P., Liu, S., Logan, J., Lormand, M., Lubinski, M., Luck, H., Lyons, T. T., Machenschalk, B., MacInnis, M., Mageswaran, M., Mailand, K., Majid, W., Malec, M., Mann, F., Marin, A., Marka, S., Maros, E., Mason, J., Mason, K., Matherny, O., Matone, L., Mavalvala, N., McCarthy, R., McClelland, D. E., McHugh, M., McNabb, J. W., Mendell, G., Mercer, R. A., Meshkov, S., Messaritaki, E., Messenger, C., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyoki, S., Mohanty, S., Moreno, G., Mossavi, K., Mueller, G., Mukherjee, S., Murray, P., Myers, J., Nagano, S., Nash, T., Nayak, R., Newton, G., Nocera, F., Noel, J. S., Nutzman, P., Olson, T., O'Reilly, B., Ottaway, D. J., Ottewill, A., Ouimette, D., Overmier, H., Owen, B. J., Pan, Y., Papa, M. A., Parameshwaraiah, V., Parameswariah, C., Pedraza, M., Penn, S., Pitkin, M., Plissi, M., Prix, R., Quetschke, V., Raab, F., Radkins, H., Rahkola, R., Rakhmanov, M., Rao, S. R., Rawlins, K., Ray-Majumder, S., Re, V., Redding, D., Regehr, M. W., Regimbau, T., Reid, S., Reilly, K. T., Reithmaier, K., Reitze, D. H., Richman, S., Riesen, R., Riles, K., Rivera, B., Rizzi, A., Robertson, D. I., Robertson, N. A., Robison, L., Roddy, S., Rollins, J., Romano, J. D., Romie, J., Rong, H., Rose, D., Rotthoff, E., Rowan, S., Rudiger, A., Russell, P., Ryan, K., Salzman, I., Sandberg, V., Sanders, G. H., Sannibale, V., Sathyaprakash, B., Saulson, P. R., Savage, R., Sazonov, A., Schilling, R., Schlaufman, K., Schmidt, V., Schnabel, R., Schofield, R., Schutz, B. F., Schwinberg, P., Scott, S. M., Seader, S. E., Searle, A. C., Sears, B., Seel, S., Seifert, F., Sengupta, A. S., Shapiro, C. A., Shawhan, P., Shoemaker, D. H., Shu, Q. Z., Sibley, A., Siemens, X., Sievers, L., Sigg, D., Sintes, A. M., Smith, J. R., Smith, M., Smith, M. R., Sneddon, P. H., Spero, R., Stapfer, G., Steussy, D., Strain, K. A., Strom, D., Stuver, A., Summerscales, T., Sumner, M. C., Sutton, P. J., Sylvestre, J., Takamori, A., Tanner, D. B., Tariq, H., Taylor, I., Taylor, R., Taylor, R., Thorne, K. A., Thorne, K. S., Tibbits, M., Tilav, S., Tinto, M., Tokmakov, K. V., Torres, C., Torrie, C., Traylor, G., Tyler, W., Ugolini, D., Ungarelli, C., Vallisneri, M., van Putten, M., Vass, S., Vecchio, A., Veitch, J., Vorvick, C., Vyachanin, S. P., Wallace, L., Walther, H., Ward, H., Ware, B., Watts, K., Webber, D., Weidner, A., Weiland, U., Weinstein, A., Weiss, R., Welling, H., Wen, L., Wen, S., Whelan, J. T., Whitcomb, S. E., Whiting, B. F., Wiley, S., Wilkinson, C., Willems, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, B. J., Winkler, W., Wise, S., Wiseman, A. G., Woan, G., Wooley, R., Worden, J., Wu, W., Yakushin, I., Yamamoto, H., Yoshida, S., Zaleski, K. D., Zanolin, M., Zawischa, I., Zhang, L., Zhu, R., Zotov, N., Zucker, M., Zweizig, J., Kramer, M., Lyne, A. G. 2005; 94 (18)

  Abstract

  We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the expected gravitational-wave signals. The unprecedented sensitivity of the detectors allows us to set strain upper limits as low as a few times 10(-24). These strain limits translate into limits on the equatorial ellipticities of the pulsars, which are smaller than 10(-5) for the four closest pulsars.

  View details for DOI 10.1103/PhysRevLett.94.181103

  View details for Web of Science ID 000229074300009

  View details for PubMedID 15904354

• Ultrasensitive chromatic dispersion monitoring for 10GHz pulse train by quasi-phase-matched LiNbO3 waveguides ELECTRONICS LETTERS Yang, S. D., Jiang, Z., Weiner, A. M., Parameswaran, K. R., Fejer, M. M. 2005; 41 (9): 554-556

  View details for DOI 10.1049/el:20050613

  View details for Web of Science ID 000228925400029

• Tandem chirped quasi-phase-matching grating optical parametric amplifier design for simultaneous group delay and gain control OPTICS LETTERS Charbonneau-Lefort, M., Fejer, M. M., Afeyan, B. 2005; 30 (6): 634-636

  Abstract

  We present a broadband optical parametric amplifier design using tapered gain and tandem chirped quasi-phase-matching gratings to obtain flat gain and group-delay spectra suitable for applications such as ultrashort-pulse amplification and fiber-optic communication systems. Although a tapered-gain amplifier consisting of a single chirped grating can provide constant gain over a wide frequency range, it cannot be used to control the group delay across the spectrum. We propose controlling both the gain and the group delay profiles using a two-stage amplifier configuration, in which the idler of the first is used as the input signal of the second.

  View details for Web of Science ID 000227515100016

  View details for PubMedID 15792000

• Iodine stabilization of a diode laser in the optical communication band OPTICS LETTERS Chui, H. C., Shaw, S. Y., Ko, M. S., Liu, Y. W., Shy, L. T. 2005; 30 (6): 646-648

  Abstract

  The iodine molecule has frequently been used as a frequency reference from the green to the near-infrared wavelength region (500-900 nm). We describe the frequency locking of the second-harmonic signal of a 197.2-THz (1520.25-nm) distributed-feedback diode laser to the absorption lines of the iodine hyperfine structure; a frequency jitter below 0.1 MHz was achieved at a 300-ms time constant. This scheme provides a simple, compact, and high-performance frequency reference in the optical communication band.

  View details for Web of Science ID 000227515100020

  View details for PubMedID 15792004

• Four-user 10-Gb/s spectrally phase-coded O-CDMA system operating at similar to 30 fJ/bit IEEE PHOTONICS TECHNOLOGY LETTERS Jiang, Z., Seo, D., Yang, S., Leaird, D. E., Roussev, R. V., Langrock, C., Fejer, M. M., Weiner, A. M. 2005; 17 (3): 705-707

  View details for DOI 10.1109/LPT.2004.840931

  View details for Web of Science ID 000227138400063

• Investigation of periodically poled lithium niobate crystals by light diffraction JOURNAL OF APPLIED PHYSICS Muller, M., Soergel, E., Buse, K., Langrock, C., Fejer, M. M. 2005; 97 (4)

  View details for DOI 10.1063/1.1849818

  View details for Web of Science ID 000226841900061

• Four-user, 2.5-Gb/s, spectrally coded OCDMA system demonstration using low-power nonlinear processing Conference on Optical Fiber Communication (OFC) Jiang, Z., Seo, D. S., Yang, S. D., Leaird, D. E., Roussev, R. V., Langrock, C., Fejer, A. M., Weiner, A. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2005: 143–58

  View details for DOI 10.1109/JLT.2004.840039

  View details for Web of Science ID 000226290600018

• Quasi-group-velocity matching using integrated-optic structures OPTICS LETTERS Huang, J., Kurz, J. R., Langrock, C., Schober, A. M., Fejer, M. M. 2004; 29 (21): 2482-2484

  Abstract

  We propose a device to compensate for group-velocity mismatch (GVM) effects that limit the efficiency-bandwidth product in nonlinear frequency-mixing devices. Integrated wavelength-dependent delay lines are introduced periodically in a waveguide containing a series of quasi-phase-matching (QPM) gratings. Appropriate choice of the time delays can compensate for GVM. We have demonstrated a two-stage device in a periodically poled lithium niobate waveguide. Two approximately 150-fs-long pulses generated 6 ps apart by second-harmonic generation in two QPM gratings were resynchronized by a fixed delay line, and their relative phase was fine controlled by temperature tuning. This technique, which can be iterated to more than two segments, permits optical frequency mixers with a higher efficiency-bandwidth product than would be possible in a single grating short enough to avoid GVM effects.

  View details for Web of Science ID 000224600000008

  View details for PubMedID 15584268

• Thermoelastic dissipation in inhomogeneous media: loss measurements and displacement noise in coated test masses for interferometric gravitational wave detectors PHYSICAL REVIEW D Fejer, M. M., Rowan, S., Cagnoli, G., Crooks, D. R., Gretarsson, A., Harry, G. M., Hough, J., Penn, S. D., Sneddon, P. H., Vyatchanin, S. P. 2004; 70 (8)

  View details for DOI 10.1103/PhysRevD.70.082003

  View details for Web of Science ID 000224800000007

• 400-photon-per-pulse ultrashort pulse autocorrelation measurement with aperiodically poled lithium niobate waveguides at 1.55 mu m OPTICS LETTERS Yang, S. D., Weiner, A. M., Parameswaran, K. R., Fejer, M. M. 2004; 29 (17): 2070-2072

  Abstract

  We demonstrate ultrasensitive intensity autocorrelation measurements of subpicosecond optical pulses in the telecommunication band by using aperiodically poled lithium niobate (A-PPLN) waveguides. The tightly confined optical beam in the waveguides and the chirped poling period facilitate simultaneous high second-harmonic generation (SHG) efficiency and broad phase-matching (PM) bandwidth. The resulting measurement sensitivity is 3.2 x 10(-7) mW2, approximately 500 times better than the previous record for intensity autocorrelations. We also show that chirped A-PPLN waveguides retain nearly the same SHG efficiency as the unchirped guide as long as the PM bandwidth is not significantly broader than the input spectrum.

  View details for Web of Science ID 000223481100036

  View details for PubMedID 15455783

• Optical parametric oscillation in quasi-phase-matched GaAs OPTICS LETTERS Vodopyanov, K. L., Levi, O., Kuo, P. S., Pinguet, T. J., Harris, J. S., Fejer, M. M., Gerard, B., Becouarn, L., Lallier, E. 2004; 29 (16): 1912-1914

  Abstract

  We demonstrate an optical parametric oscillator (OPO) based on GaAs. The OPO utilizes an all-epitaxially-grown orientation-patterned GaAs crystal that is 0.5 mm thick, 5 mm wide, and 11 mm long, with a domain reversal period of 61.2 microm. Tuning either the near-IR pump wavelength between 1.8 and 2 microm or the temperature of the GaAs crystal allows the mid-IR output to be tuned between 2.28 and 9.14 microm, which is limited only by the spectral range of the OPO mirrors. The pump threshold of the singly resonant OPO is 16 microJ for the 6-ns pump pulses, and the photon conversion slope efficiency reaches 54%. We also show experimentally the possibility of pump-polarization-independent frequency conversion in GaAs.

  View details for Web of Science ID 000223074600026

  View details for PubMedID 15357357

• Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides OPTICS LETTERS Leo, G., Amoroso, A., Colace, L., Assanto, G., Roussev, R. V., Fejer, M. M. 2004; 29 (15): 1778-1780

  Abstract

  Combining reverse proton exchange and uniform periodic poling in LiNbO3 planar waveguides, we demonstrate low-energy spatial optical solitons by second-harmonic generation at room temperature, with a threshold as low as 23 pJ/microm at 1.5 microm.

  View details for Web of Science ID 000222712900025

  View details for PubMedID 15352367

• Vapor-transport equilibrated near-stoichiometric lithiulm tantalate for frequency-conversion applications OPTICS LETTERS Katz, M., Route, R. K., Hum, D. S., Parameswaran, K. R., Miller, G. D., Fejer, M. M. 2004; 29 (15): 1775-1777

  Abstract

  Near-stoichiometric lithium tantalate (SLT) crystals were produced from congruent lithium tantalate by a vapor-transport equilibration process. Because of the resultant increase in photoconductivity and reduction in photogalvanism, the crystals showed no observable photorefractive damage at 514.5 nm up to the highest intensity used, 2 MW/cm2. The crystals also exhibited low green-induced infrared absorption, a Curie temperature of 693 degrees C, and a coercive field of 80 V/mm. The SLT samples were periodically poled with an 8-microm-period grating, permitting first-order quasi-phase-matched second-harmonic generation of 532-nm radiation at 43 degrees C. A 17-mm-long sample generated 1.6 W of continuous-wave output power at 532 nm for 50 h. With 150-ns pulses at a 100-kHz repetition rate in the same sample, 5-W average-power, 532-nm radiation was generated for 1000 h. No damage to the crystal and no aging effects were observed during these experiments.

  View details for Web of Science ID 000222712900024

  View details for PubMedID 15352366

• Periodically poled lithium niobate waveguide sum-frequency generator for efficient single-photon detection at communication wavelengths OPTICS LETTERS Roussev, R. V., Langrock, C., Kurz, J. R., Fejer, M. M. 2004; 29 (13): 1518-1520

  Abstract

  We present a device to facilitate single-photon detection at communication wavelengths based on continuous-wave sum-frequency generation with an upconversion efficiency exceeding 90%. Sum-frequency generation in a periodically poled lithium niobate waveguide is used to upconvert signal photons to the near infrared, where detection can be performed efficiently by use of silicon avalanche photodiodes.

  View details for Web of Science ID 000222133100028

  View details for PubMedID 15259732

• Picojoule threshold, picosecond optical parametric generation in reverse proton-exchanged lithium niobate waveguides JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Xie, X. P., Schober, A. M., Langrock, C., Roussev, R. V., Kurz, J. R., Fejer, M. M. 2004; 21 (7): 1397-1402

  View details for Web of Science ID 000222514500017

• Low-power high-contrast coded waveform discrimination at 10 GHz via nonlinear processing IEEE PHOTONICS TECHNOLOGY LETTERS Jiang, Z., Seo, D. S., Yang, S. D., Leaird, D. E., Roussev, R. V., Langrock, C., Fejer, M. M., Weiner, A. M. 2004; 16 (7): 1778-1780

  View details for DOI 10.1109/LTP.2004.828460

  View details for Web of Science ID 000222278900058

• Analysis of LIGO data for gravitational waves from binary neutron stars PHYSICAL REVIEW D Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Araya, M., Armandula, H., Asiri, F., Aufmuth, P., Aulbert, C., Babak, S., Balasubramanian, R., Ballmer, S., Barish, B. C., Barker, D., Barker-Patton, C., Barnes, M., Barr, B., Barton, M. A., Bayer, K., Beausoleil, R., Belczynski, K., Bennett, R., Berukoff, S. J., Betzwieser, J., Bhawal, B., Bilenko, I. A., Billingsley, G., Black, E., Blackburn, K., Bland-Weaver, B., Bochner, B., Bogue, L., Bork, R., Bose, S., Brady, P. R., Braginsky, V. B., Brau, J. E., Brown, D. A., Brozek, S., Bullington, A., Buonanno, A., Burgess, R., Busby, D., Butler, W. E., Byer, R. L., Cadonati, L., Cagnoli, G., Camp, J. B., Cantley, C. A., Cardenas, L., Carter, K., Casey, M. M., Castiglione, J., Chandler, A., Chapsky, J., Charlton, P., Chatterji, S., Chen, Y., Chickarmane, V., Chin, D., Christensen, N., Churches, D., Colacino, C., Coldwell, R., Coles, M., Cook, D., Corbitt, T., Coyne, D., Creighton, J. D., Creighton, T. D., Crooks, D. R., Csatorday, P., Cusack, B. J., Cutler, C., D'Ambrosio, E., Danzmann, K., Davies, R., Daw, E., DeBra, D., Delker, T., DeSalvo, R., Dhurandhar, S., Diaz, M., Ding, H., Drever, R. W., Dupuis, R. J., Ebeling, C., Edlund, J., Ehrens, P., Elliffe, E. J., Etzel, T., Evans, M., Evans, T., Fallnich, C., Farnham, D., Fejer, M. M., Fine, M., Finn, L. S., Flanagan, E., Freise, A., Frey, R., Fritschel, P., Frolov, V., Fyffe, M., Ganezer, K. S., Giaime, J. A., Gillespie, A., Goda, K., Gonzalez, G., Gossler, S., Grandclement, P., Grant, A., Gray, C., Gretarsson, A. M., Grimmett, D., GROTE, H., Grunewald, S., Guenther, M., Gustafson, E., Gustafson, R., Hamilton, W. O., Hammond, M., Hanson, J., Hardham, C., Harry, G., Hartunian, A., Heefner, J., Hefetz, Y., Heinzel, G., Heng, I. S., Hennessy, M., Hepler, N., Heptonstall, A., Heurs, M., Hewitson, M., Hindman, N., Hoang, P., Hough, J., Hrynevych, M., Hua, W., Ingley, R., Ito, M., Itoh, Y., Ivanov, A., Jennrich, O., Johnson, W. W., Johnston, W., Jones, L., Jungwirth, D., Kalogera, V., Katsavounidis, E., Kawabe, K., Kawamura, S., Kells, W., Kern, J., Khan, A., Killbourn, S., Killow, C. J., Kim, C., King, C., King, P., Klimenko, S., Kloevekorn, P., Koranda, S., Kotter, K., Kovalik, J., Kozak, D., Krishnan, B., Landry, M., Langdale, J., Lantz, B., Lawrence, R., Lazzarini, A., Lei, M., Leonhardt, V., Leonor, I., Libbrecht, K., Lindquist, P., Liu, S., Logan, J., Lormand, M., Lubinski, M., Luck, H., Lyons, T. T., Machenschalk, B., MacInnis, M., Mageswaran, M., Mailand, K., Majid, W., Malec, M., Mann, F., Marin, A., Marka, S., Maros, E., Mason, J., Mason, K., Matherny, O., Matone, L., Mavalvala, N., McCarthy, R., McClelland, D. E., McHugh, M., McNamara, P., Mendell, G., Meshkov, S., Messenger, C., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyoki, S., Mohanty, S., Moreno, G., Mossavi, K., Mours, B., Mueller, G., Mukherjee, S., Myers, J., Nagano, S., Nash, T., Naundorf, H., Nayak, R., Newton, G., Nocera, F., Nutzman, P., Olson, T., O'Reilly, B., Ottaway, D. J., Ottewill, A., Ouimette, D., Overmier, H., Owen, B. J., Papa, M. A., Parameswariah, C., Parameswariah, V., Pedraza, M., Penn, S., Pitkin, M., Plissi, M., Pratt, M., Quetschke, V., Raab, F., Radkins, H., Rahkola, R., Rakhmanov, M., Rao, S. R., Redding, D., Regehr, M. W., Regimbau, T., Reilly, K. T., Reithmaier, K., Reitze, D. H., Richman, S., Riesen, R., Riles, K., Rizzi, A., Robertson, D. I., Robertson, N. A., Robison, L., Roddy, S., Rollins, J., Romano, J. D., Romie, J., Rong, H., Rose, D., Rotthoff, E., Rowan, S., Rudiger, A., Russell, P., Ryan, K., Salzman, I., Sanders, G. H., Sannibale, V., Sathyaprakash, B., Saulson, P. R., Savage, R., Sazonov, A., Schilling, R., Schlaufman, K., Schmidt, V., Schofield, R., Schrempel, M., Schutz, B. F., Schwinberg, P., Scott, S. M., Searle, A. C., Sears, B., Seel, S., Sengupta, A. S., Shapiro, C. A., Shawhan, P., Shoemaker, D. H., Shu, Q. Z., Sibley, A., Siemens, X., Sievers, L., Sigg, D., Sintes, A. M., Skeldon, K., Smith, J. R., Smith, M., Smith, M. R., Sneddon, P., Spero, R., Stapfer, G., Strain, K. A., Strom, D., Stuver, A., Summerscales, T., Sumner, M. C., Sutton, P. J., Sylvestre, J., Takamori, A., Tanner, D. B., Tariq, H., Taylor, I., Taylor, R., Thorne, K. S., Tibbits, M., Tilav, S., Tinto, M., Tokmakov, K. V., Torres, C., Torrie, C., Traeger, S., Traylor, G., Tyler, W., Ugolini, D., Vallisneri, M., van Putten, M., Vass, S., Vecchio, A., Vorvick, C., Vyachanin, S. P., Wallace, L., Walther, H., Ward, H., Ware, B., Watts, K., Webber, D., Weidner, A., Weiland, U., Weinstein, A., Weiss, R., Welling, H., Wen, L., Wen, S., Whelan, J. T., Whitcomb, S. E., Whiting, B. F., Willems, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, B. J., Winkler, W., Wise, S., Wiseman, A. G., Woan, G., Wooley, R., Worden, J., Yakushin, I., Yamamoto, H., Yoshida, S., Zawischa, I., Zhang, L., Zotov, N., Zucker, M., Zweizig, J. 2004; 69 (12)

  View details for DOI 10.1103/PhysRevD.69.122001

  View details for Web of Science ID 000222681600002

• Analysis of first LIGO science data for stochastic gravitational waves PHYSICAL REVIEW D Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Araya, M., Armandula, H., Asiri, F., Aufmuth, P., Aulbert, C., Babak, S., Balasubramanian, R., Ballmer, S., Barish, B. C., Barker, D., Barker-Patton, C., Barnes, M., Barr, B., Barton, M. A., Bayer, K., Beausoleil, R., Belczynski, K., Bennett, R., Berukoff, S. J., Betzwieser, J., Bhawal, B., Bilenko, I. A., Billingsley, G., Black, E., Blackburn, K., Bland-Weaver, B., Bochner, B., Bogue, L., Bork, R., Bose, S., Brady, P. R., Braginsky, V. B., Brau, J. E., Brown, D. A., Brozek, S., Bullington, A., Buonanno, A., Burgess, R., Busby, D., Butler, W. E., Byer, R. L., Cadonati, L., Cagnoli, G., Camp, J. B., Cantley, C. A., Cardenas, L., Carter, K., Casey, M. M., Castiglione, J., Chandler, A., Chapsky, J., Charlton, P., Chatterji, S., Chen, Y., Chickarmane, V., Chin, D., Christensen, N., Churches, D., Colacino, C., Coldwell, R., Coles, M., Cook, D., Corbitt, T., Coyne, D., Creighton, J. D., Creighton, T. D., Crooks, D. R., Csatorday, P., Cusack, B. J., Cutler, C., D'Ambrosio, E., Danzmann, K., Davies, R., Daw, E., DeBra, D., Delker, T., DeSalvo, R., Dhurandhar, S., Diaz, M., Ding, H., Drever, R. W., Dupuis, R. J., Ebeling, C., Edlund, J., Ehrens, P., Elliffe, E. J., Etzel, T., Evans, M., Evans, T., Fallnich, C., Farnham, D., Fejer, M. M., Fine, M., Finn, L. S., Flanagan, E., Freise, A., Frey, R., Fritschel, P., Frolov, V., Fyffe, M., Ganezer, K. S., Giaime, J. A., Gillespie, A., Goda, K., Gonzalez, G., Gossler, S., Grandclement, P., Grant, A., Gray, C., Gretarsson, A. M., Grimmett, D., GROTE, H., Grunewald, S., Guenther, M., Gustafson, E., Gustafson, R., Hamilton, W. O., Hammond, M., Hanson, J., Hardham, C., Harry, G., Hartunian, A., Heefner, J., Hefetz, Y., Heinzel, G., Heng, I. S., Hennessy, M., Hepler, N., Heptonstall, A., Heurs, M., Hewitson, M., Hindman, N., Hoang, P., Hough, J., Hrynevych, M., Hua, W., Ingley, R., Ito, M., Itoh, Y., Ivanov, A., Jennrich, O., Johnson, W. W., Johnston, W., Jones, L., Jungwirth, D., Kalogera, V., Katsavounidis, E., Kawabe, K., Kawamura, S., Kells, W., Kern, J., Khan, A., Killbourn, S., Killow, C. J., Kim, C., King, C., King, P., Klimenko, S., Kloevekorn, P., Koranda, S., Kotter, K., Kovalik, J., Kozak, D., Krishnan, B., Landry, M., Langdale, J., Lantz, B., Lawrence, R., Lazzarini, A., Lei, M., Leonhardt, V., Leonor, I., Libbrecht, K., Lindquist, P., Liu, S., Logan, J., Lormand, M., Lubinski, M., Luck, H., Lyons, T. T., Machenschalk, B., MacInnis, M., Mageswaran, M., Mailand, K., Majid, W., Malec, M., Mann, F., Marin, A., Marka, S., Maros, E., Mason, J., Mason, K., Matherny, O., Matone, L., Mavalvala, N., McCarthy, R., McClelland, D. E., McHugh, M., McNamara, P., Mendell, G., Meshkov, S., Messenger, C., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyoki, S., Mohanty, S., Moreno, G., Mossavi, K., Mours, B., Mueller, G., Mukherjee, S., Myers, J., Nagano, S., Nash, T., Naundorf, H., Nayak, R., Newton, G., Nocera, F., Nutzman, P., Olson, T., O'Reilly, B., Ottaway, D. J., Ottewill, A., Ouimette, D., Overmier, H., Owen, B. J., Papa, M. A., Parameswariah, C., Parameswariah, V., Pedraza, M., Penn, S., Pitkin, M., Plissi, M., Pratt, M., Quetschke, V., Raab, F., Radkins, H., Rahkola, R., Rakhmanov, M., Rao, S. R., Redding, D., Regehr, M. W., Regimbau, T., Reilly, K. T., Reithmaier, K., Reitze, D. H., Richman, S., Riesen, R., Riles, K., Rizzi, A., Robertson, D. I., Robertson, N. A., Robison, L., Roddy, S., Rollins, J., Romano, J. D., Romie, J., Rong, H., Rose, D., Rotthoff, E., Rowan, S., Rudiger, A., Russell, P., Ryan, K., Salzman, I., Sanders, G. H., Sannibale, V., Sathyaprakash, B., Saulson, P. R., Savage, R., Sazonov, A., Schilling, R., Schlaufman, K., Schmidt, V., Schofield, R., Schrempel, M., Schutz, B. F., Schwinberg, P., Scott, S. M., Searle, A. C., Sears, B., Seel, S., Sengupta, A. S., Shapiro, C. A., Shawhan, P., Shoemaker, D. H., Shu, Q. Z., Sibley, A., Siemens, X., Sievers, L., Sigg, D., Sintes, A. M., Skeldon, K., Smith, J. R., Smith, M., Smith, M. R., Sneddon, P., Spero, R., Stapfer, G., Strain, K. A., Strom, D., Stuver, A., Summerscales, T., Sumner, M. C., Sutton, P. J., Sylvestre, J., Takamori, A., Tanner, D. B., Tariq, H., Taylor, I., Taylor, R., Thorne, K. S., Tibbits, M., Tilav, S., Tinto, M., Tokmakov, K. V., Torres, C., Torrie, C., Traeger, S., Traylor, G., Tyler, W., Ugolini, D., Vallisneri, M., van Putten, M., Vass, S., Vecchio, A., Vorvick, C., Vyachanin, S. P., Wallace, L., Walther, H., Ward, H., Ware, B., Watts, K., Webber, D., Weidner, A., Weiland, U., Weinstein, A., Weiss, R., Welling, H., Wen, L., Wen, S., Whelan, J. T., Whitcomb, S. E., Whiting, B. F., Willems, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, B. J., Winkler, W., Wise, S., Wiseman, A. G., Woan, G., Wooley, R., Worden, J., Yakushin, I., Yamamoto, H., Yoshida, S., Zawischa, I., Zhang, L., Zotov, N., Zucker, M., Zweizig, J. 2004; 69 (12)

  View details for DOI 10.1103/PhysRevD.69.122004

  View details for Web of Science ID 000222681600005

• Spectrally coded O-CDMA system with four users at 2.5 Gbit/s using low power nonlinear processing ELECTRONICS LETTERS Jiang, Z., Seo, D. S., Yang, S. D., Leaird, D. E., Weiner, A. M., Roussev, R. V., Langrock, C., Fejer, M. M. 2004; 40 (10): 623-625

  View details for DOI 10.1049/el:20040400

  View details for Web of Science ID 000221793900036

• Single-phase growth studies of GaP on Si by solid-source molecular beam epitaxy 21st North American Conference on Molecular Beam Epitaxy (NAMBE 2003) Yu, X. J., Kuo, P. S., Ma, K., Levi, O., Fejer, M. M., Harris, J. S. A V S AMER INST PHYSICS. 2004: 1450–54

  View details for DOI 10.1116/1.1669670

  View details for Web of Science ID 000222481400113

• Mode multiplexing in optical frequency mixers OPTICS LETTERS Kurz, J. R., Huang, J., Xie, X. P., Saida, T., Fejer, M. M. 2004; 29 (6): 551-553

  Abstract

  Asymmetric Y junctions allow the development of a new class of optical frequency mixers that utilize higher-order waveguide modes for signal processing. We measure high-contrast (>30 dB) mode sorting in asymmetric Y junctions by use of a novel technique: efficient TM00, TM10, and TM20 mode mixing in a periodically poled lithium niobate waveguide. We also demonstrate an odd-to-even mode wavelength converter capable of spectral inversion without offset or bidirectional wavelength conversion.

  View details for Web of Science ID 000189316100007

  View details for PubMedID 15035467

• Experimental measurements of coating mechanical loss factors 5th Edoardo Amaldi Conference on Gravitational Waves Crooks, D. R., Cagnoli, G., Fejer, M. M., Gretarsson, A., Harry, G., Hough, J., Nakagawa, N., Penn, S., Route, R., Rowan, S., Sneddon, P. H. IOP PUBLISHING LTD. 2004: S1059–S1065

  View details for Web of Science ID 000220344800102

• Upper limits on the strength of periodic gravitational waves from PSR J1939+2134 5th Edoardo Amaldi Conference on Gravitational Waves Allen, B., Woan, G., Abbott, B., Abbott, R., Adhikari, R., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Araya, M., Armandula, H., Asiri, F., Aufmuth, P., Aulbert, C., Babak, S., Balasubramanian, R., Ballmer, S., Barish, B. C., Barker, D., Barker-Patton, C., Barnes, M., Barr, B., Barton, M. A., Bayer, K., Beausoleil, R., Belczynski, K., Bennett, R., Berukoff, S. J., Betzwieser, J., Bhawal, B., Billingsley, G., Black, E., Blackburn, K., Bland-Weaver, B., Bochner, B., Bogue, L., Bork, R., Bose, S., Brady, P. R., Brau, J. E., Brown, D. A., Brozek, S., Bullington, A., Buonanno, A., Burgess, R., Busby, D., Butler, W. E., Byer, R. L., Cadonati, L., Cagnoli, G., Camp, J. B., Cantley, C. A., Cardenas, L., Carter, K., Casey, M. M., Castiglione, J., Chandler, A., Chapsky, J., Charlton, P., Chatterji, S., Chen, Y., Chickarmane, V., Chin, D., Christensen, N., Churches, D., Colacino, C., Coldwell, R., Creighton, T. D., Crooks, D. R., Csatorday, P., Cusack, B. J., Cutler, C., D'Ambrosio, E. D., Danzmann, K., Davies, R., Daw, E., DeBra, D., Delker, T., DeSalvo, R., Dhurandar, S., Diaz, M., Ding, H., Drever, R. W., Dupuis, R. J., Ebeling, C., Edlund, J., Ehrens, P., Elliffe, E. J., Etzel, T., Evans, M., Evans, T., Fallnich, C., Farnham, D., Fejer, M. M., Fine, M., Finn, L. S., Flanagan, E., Freise, A., Frey, R., Fritschel, P., Frolov, V., Fyffe, M., Ganezer, K. S., Giaime, J. A., Gillespie, A., Goda, K., Gonzalez, G., Gobler, S., Grandclement, P., Grant, A., Gray, C., Gretarsson, A. M., Grimmett, D., GROTE, H., Grunewald, S., Guenther, M., Gustafson, E., Gustafson, R., Hamilton, W. O., Hammond, M., Hanson, J., Hardham, C., Harry, G., Hartunian, A., Heefner, J., Hefetz, Y., Heinzel, G., Heng, I. S., Hennessy, M., Hepler, N., Heptonstall, A., Heurs, M., Hewitson, M., Hindman, N., Hoang, P., Hough, J., Hrynevych, M., Hua, W., Ingley, R., Ito, M., Itoh, Y., Ivanov, A., Jennrich, O., Johnson, W. W., Johnston, W., Jones, L., Jungwirth, D., Kalogera, V., Katsavounidis, E., Kawabe, K., Kawamura, S., Kells, W., Kern, J., Khan, A., Killbourn, S., Killow, C. J., Kim, C., King, C., King, P., Klimenko, S., Kloevekorn, P., Koranda, S., Kotter, K., Kovalik, J., Kozak, D., Krishnan, B., Landry, M., Langdale, J., Lantz, B., Lawrence, R., Lazzarini, A., Lei, M., Leonhardt, V., Leonor, I., Libbrecht, M., Luck, H., Lyons, T. T., Machenschalk, B., MacInnis, M., Mageswaran, M., Mailand, K., Majid, W., Malec, M., Mann, F., Marin, A., Marka, S., Maros, E., Mason, J., Mason, K., Matherny, O., Matone, L., Mavalvala, N., McCarthy, R., McClelland, D. E., McHugh, M., McNamara, P., Mendell, G., Meshkov, S., Messenger, C., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyoki, S., Mohanty, S., Moreno, G., Mossavi, K., Mours, B., Mueller, G., Mukherjee, S., Myers, J., Nagano, S., Nash, T., Naundorf, H., Nayak, R., Newton, G., Nocera, F., Nutzman, P., Olson, T., O'Reilly, B., Ottaway, D. J., Ottewill, A., Ouimette, D., Overmier, H., Owen, B. J., Papa, M. A., Parameswariah, C., Parameswariah, V., Pedraza, M., Penn, S., Pitkin, M., Plissi, M., Pratt, M., Quetschke, V., Raab, F., Radkins, H., Rahkola, R., Rakhmanov, M., Rao, S. R., Redding, D., Regehr, M. W., Regimbau, T., Reilly, K. T., Reithmaier, K., Reitze, D. H., Richman, S., Riesen, R., Riles, K., Rizzi, A., Robertson, D. I., Robertson, N. A., Robison, L., Roddy, S., Rollins, J., Romano, J. D., Romie, J., Rong, H., Rose, D., Rotthoff, E., Rowan, S., Rudiger, A., Russell, P., Ryan, K., Salzman, I., Sanders, G. H., Sannibale, V., Sathyaprakash, B., Saulson, P. R., Savage, R., Sazonov, A., Schilling, R., Schlaufman, K., Schmidt, V., Schofield, R., Schrempel, M., Schutzl, B. F., Schwinberg, P., Scott, S. M., Searle, A. C., Sears, B., Seel, S., Sengupta, A. S., Shapiro, C. A., Shawhan, P., Shoemaker, D. H., Shu, Q. Z., Sibley, A., Siemens, X., Sievers, L., Sigg, D., Sintes, A. M., Skeldon, K., Smith, J. R., Smith, M., Smith, M. R., Sneddon, P., Spero, R., Stapfer, G., Strain, K. A., Strom, D., Stuver, A., Summerscales, T., Sumner, M. C., Sutton, P. J., Sylvestre, J., Takamori, A., Tanner, D. B., Tariq, H., Taylor, I., Taylor, R., Throne, K. S., Tibbits, M., Tilav, S., Tinto, M., Torres, C., Torrie, C., Traeger, S., Traylor, G., Tyler, W., Ugolini, D., Vallisneri, M., van Putten, M., Vass, S., Vecchio, A., Vorvick, C., Wallace, L., Walther, H., Ward, H., Ware, B., Watts, K., Webber, D., Weidner, A., Weiland, U., Weinstein, A., Weiss, R., Welling, H., Wen, L., Wen, S., Whelan, J. T., Whitcomb, S. E., Whiting, B. F., Willems, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, B. J., Winkler, W., Wise, S., Wiseman, A. G., Woan, G., Wooley, R., Worden, J., Yakushin, I., Yamamoto, H., Yoshida, S., Zawischa, I., Zhang, L., Zotov, N., Zucker, M., Zweizig, J. IOP PUBLISHING LTD. 2004: S671–S676

  View details for DOI 10.1088/0264-9381/21/5/042

  View details for Web of Science ID 000220344800043

• Mechanical quality factor measurements of monolithically suspended fused silica test masses of the GEO 600 gravitational wave detector 5th Edoardo Amaldi Conference on Gravitational Waves Smith, J. R., Cagnoji, G., Crooks, D. R., Fejer, M. M., Gossler, S., Luck, H., Rowan, S., Hough, J., Danzmann, K. IOP PUBLISHING LTD. 2004: S1091–S1098

  View details for Web of Science ID 000220344800106

• 160-Gb/s OTDM transmission using integrated all-optical MUX/DEMUX with all-channel modulation and demultiplexing IEEE PHOTONICS TECHNOLOGY LETTERS Ohara, T., Takara, H., Shake, I., Mori, K., Sato, K., Kawanishi, S., Mino, S., Yamada, I., Ishii, A., Ogawa, I., Kitoh, T., Magari, K., Okamoto, A., Roussev, R. V., Kurz, J. R., Parameswaran, K. R., Fejer, M. M. 2004; 16 (2): 650-652

  View details for DOI 10.1109/LPT.2003.818953

  View details for Web of Science ID 000189020000100

• Detector description and performance for the first coincidence observations between LIGO and GEO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Abbott, B., Abbott, R., Adhikari, R., Ageev, A., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Araya, M., Armandula, H., Asiri, F., Aufmuth, P., Aulbert, C., Babak, S., Balasubramanian, R., Ballmer, S., Barish, B. C., Barker, D., Barker-Patton, C., Barnes, M., Barr, B., Barton, M. A., Bayer, K., Beausoleil, R., Belczynski, K., Bennett, R., Berukoff, S. J., Betzwieser, J., Bhawal, B., Bilenko, I. A., Billingsley, G., Black, E., Blackburn, K., Bland-Weaver, B., Bochner, B., Bogue, L., Bork, R., Bose, S., Brady, P. R., Braginsky, V. B., Brau, J. E., Brown, D. A., Brozek, S., Bullington, A., Buonanno, A., Burgess, R., Busby, D., Butler, W. E., Byer, R. L., Cadonati, L., Cagnoli, G., Camp, J. B., Cantley, C. A., Cardenas, L., Carter, K., Casey, M. M., Castiglione, J., Chandler, A., Chapsky, J., Charlton, P., Chatterji, S., Chen, Y., Chickarmane, V., Chin, D., Christensen, N., Churches, D., Colacino, C., Coldwell, R., Coles, M., Cook, D., Corbitt, T., Coyne, D., Creighton, J. D., Creighton, T. D., Crooks, D. R., Csatorday, P., Cusack, B. J., Cutler, C., D'Ambrosio, E., Danzmann, K., Davies, R., Daw, E., DeBra, D., Delker, T., DeSalvo, R., Dhurandar, S., Diaz, M., Ding, H., Drever, R. W., Dupuis, R. J., Ebeling, C., Edlund, J., Ehrens, P., Elliffe, E. J., Etzel, T., Evans, M., Evans, T., Fallnich, C., Farnham, D., Fejer, M. M., Fine, M., Finn, L. S., Flanagan, E., Freise, A., Frey, R., Fritschel, P., Frolov, V., Fyffe, M., Ganezer, K. S., Giaime, J. A., Gillespie, A., Goda, K., Gonzalez, G., Gossler, S., Grandclement, P., Grant, A., Gray, C., Gretarsson, A. M., Grimmett, D., GROTE, H., Grunewald, S., Guenther, M., Gustafson, E., Gustafson, R., Hamilton, W. O., Hammond, M., Hanson, J., Hardham, C., Harry, G., Hartunian, A., Heefner, J., Hefetz, Y., Heinzel, G., Heng, I. S., Hennessy, M., Hepler, N., Heptonstall, A., Heurs, M., Hewitson, M., Hindman, N., Hoang, P., Hough, J., Hrynevych, M., Hua, W., Ingley, R., Ito, M., Itoh, Y., Ivanov, A., Jennrich, O., Johnson, W. W., Johnston, W., Jones, L., Jungwirth, D., Kalogera, V., Katsavounidis, E., Kawabe, K., Kawamura, S., Kells, W., Kern, J., Khan, A., Killbourn, S., Killow, C. J., Kim, C., King, C., King, P., Klimenko, S., Kloevekorn, P., Koranda, S., Kotter, K., Kovalik, J., Kozak, D., Krishnan, B., Landry, M., Langdale, J., Lantz, B., Lawrence, R., Lazzarini, A., Lei, M., Leonhardt, V., Leonor, I., Libbrecht, K., Lindquist, P., Liu, S., Logan, J., Lormand, M., Lubinski, M., Luck, H., Lyons, T. T., Machenschalk, B., MacInnis, M., Mageswaran, M., Mailand, K., Majid, W., Malec, M., Mann, F., Marin, A., Marka, S., Maros, E., Mason, J., Mason, K., Matherny, O., Matone, L., Mavalvala, N., McCarthy, R., McClelland, D. E., McHugh, M., McNamara, P., Mendell, G., Meshkov, S., Messenger, C., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyoki, S., Mohanty, S., Moreno, G., Mossavi, K., Mours, B., Mueller, G., Mukherjee, S., Myers, J., Nagano, S., Nash, T., Naundorf, H., Nayak, R., Newton, G., Nocera, F., Nutzman, P., Olson, T., O'Reilly, B., Ottaway, D. J., Ottewill, A., Ouimette, D., Overmier, H., Owen, B. J., Papa, M. A., Parameswariah, C., Parameswariah, V., Pedraza, M., Penn, S., Pitkin, M., Plissi, M., Pratt, M., Quetschke, V., Raab, F., Radkins, H., Rahkola, R., Rakhmanov, M., Rao, S. R., Redding, D., Regehr, M. W., Regimbau, T., Reilly, K. T., Reithmaier, K., Reitze, D. H., Richman, S., Riesen, R., Riles, K., Rizzi, A., Robertson, D. I., Robertson, N. A., Robison, L., Roddy, S., Rollins, J., Romano, J. D., Romie, J., Rong, H., Rose, D., Rotthoff, E., Rowan, S., Rudiger, A., Russell, P., Ryan, K., Salzman, I., Sanders, G. H., Sannibale, V., Sathyaprakash, B., Saulson, P. R., Savage, R., Sazonov, A., Schilling, R., Schlaufman, K., Schmidt, V., Schofield, R., Schrempel, M., Schutz, B. F., Schwinberg, P., Scott, S. M., Searle, A. C., Sears, B., Seel, S., Sengupta, A. S., Shapiro, C. A., Shawhan, P., Shoemaker, D. H., Shu, Q. Z., Sibley, A., Siemens, X., Sievers, L., Sigg, D., Sintes, A. M., Skeldon, K., Smith, J. R., Smith, M., Smith, M. R., Sneddon, P., Spero, R., Stapfer, G., Strain, K. A., Strom, D., Stuver, A., Summerscales, T., Sumner, M. C., Sutton, P. J., Sylvestre, J., Takamori, A., Tanner, D. B., Tariq, H., Taylor, I., Taylor, R., Thorne, K. S., Tibbits, M., Tilav, S., Tinto, M., Tokmakov, K. V., Torres, C., Torrie, C., Traeger, S., Traylor, G., Tyler, W., Ugolini, D., Vallisneri, M., van Putten, M., Vass, S., Vecchio, A., Vorvick, C., Vyatchanin, S. P., Wallace, L., Walther, H., Ward, H., Ware, B., Watts, K., Webber, D., Weidner, A., Weiland, U., Weinstein, A., Weiss, R., Welling, H., Wen, L., Wen, S., Whelan, J. T., Whitcomb, S. E., Whiting, B. F., Willems, P. A., Williams, P. R., WILLIAMS, R., Willke, B., Wilson, A., Winjum, B. J., Winkler, W., Wise, S., Wiseman, A. G., Woan, G., Wooley, R., Worden, J., Yakushin, I., Yamamoto, H., Yoshida, S., Zawischa, I., Zhang, L., Zotov, N., Zucker, M., Zweizig, J. 2004; 517 (1-3): 154-179

  View details for DOI 10.1016/j.nima.2003.11.124

  View details for Web of Science ID 000188503500015

• Self-organization in LiNbO3 and LiTaO3: Formation of micro- and nano-scale domain patterns 10th European Meeting on Ferroelectricity Shur, V. Y., Shishkin, E., Rumyantsev, E., Nikolaeva, E., Shur, A., Batchko, R., Fejer, M., Gallo, K., Kurimura, S., Terabe, K., Kitamura, K. TAYLOR & FRANCIS LTD. 2004: 941–946

  View details for DOI 10.1080/00150190490457636

  View details for Web of Science ID 000222471300023

• Multi-user, 10Gb/s spectrally phase coded O-CDMA system with hybrid chip and slot-level timing coordination Electronics Express Jiang, Z., Seo, D. S., Leaird, D. E., Weiner, A. M., Roussev, R. V., Langrock, C., Fejer, M. M. 2004; 1 (13)
• The intrinsic mechanical loss factor of hydroxy-catalysis bonds for use in the mirror suspensions of gravitational wave detectors CLASSICAL AND QUANTUM GRAVITY Sneddon, P. H., Bull, S., Cagnoli, G., Crooks, D. R., Elliffe, E. J., Faller, J. E., Fejer, M. M., Hough, J., Rowan, S. 2003; 20 (23): 5025-5037

  View details for Web of Science ID 000187585000007

• Multichannel wavelength conversion exploiting cascaded second-order nonlinearity in LiNbO3 waveguides IEEE PHOTONICS TECHNOLOGY LETTERS Sun, J. Q., Liu, W., Tian, J., Kurz, J. R., Fejer, M. M. 2003; 15 (12): 1743-1745

  View details for DOI 10.1109/LPT.2003.819713

  View details for Web of Science ID 000187436300023

• Improved dispersion relations for GaAs and applications to nonlinear optics JOURNAL OF APPLIED PHYSICS Skauli, T., Kuo, P. S., Vodopyanov, K. L., Pinguet, T. J., Levi, O., Eyres, L. A., Harris, J. S., Fejer, M. M., Gerard, B., Becouarn, L., Lallier, E. 2003; 94 (10): 6447-6455

  View details for DOI 10.1063/1.1621740

  View details for Web of Science ID 000186276600032

• All-optical decrementing of a packet's time-to-live (TTL) field and subsequent dropping of a zero-TTL packet JOURNAL OF LIGHTWAVE TECHNOLOGY McGeehan, J. E., Kumar, S., Gurkan, D., Nezam, S. M., Willner, A. E., Parameswaran, K. R., Fejer, M. M., Bannister, J., Touch, J. D. 2003; 21 (11): 2746-2752

  View details for DOI 10.1109/JLT.2003.819131

  View details for Web of Science ID 000187064500033

• Simultaneous label swapping and wavelength conversion of multiple independent WDM channels in an all-optical MPLS network using PPLN waveguides as wavelength converters JOURNAL OF LIGHTWAVE TECHNOLOGY Gurkan, D., Kumar, S., Willner, A. E., Parameswaran, K. R., Fejer, M. M. 2003; 21 (11): 2739-2745

  View details for DOI 10.1109/JLT.2003.819146

  View details for Web of Science ID 000187064500032

• Mechanical loss in tantala/silica dielectric mirror coatings CLASSICAL AND QUANTUM GRAVITY Penn, S. D., Sneddon, P. H., Armandula, H., Betzwieser, J. C., Cagnoli, G., Camp, J., Crooks, D. R., Fejer, M. M., Gretarsson, A. M., Harry, G. M., Hough, J., Kittelberger, S. E., Mortonson, M. J., Route, R., Rowan, S., Vassiliou, C. C. 2003; 20 (13): 2917-2928

  View details for Web of Science ID 000184355200035

• Model of thermal wave-front distortion in interferometric gravitational-wave detectors. I. Thermal focusing JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Beausoleil, R. G., Gustafson, E. K., Fejer, M. M., D'Ambrosio, E., Kells, W., Camp, J. 2003; 20 (6): 1247-1268

  View details for Web of Science ID 000183361100012

• Direct imaging of multimode interference in a channel waveguide OPTICS LETTERS Campillo, A. L., Hsu, J. W., Parameswaran, K. R., Fejer, M. M. 2003; 28 (6): 399-401

  Abstract

  By use of a near-field scanning optical microscope in collection mode, multimode interference was directly measured in an annealed proton-exchanged LiNbO3 waveguide. Periodic transitions from a single-peaked Gaussianlike intensity distribution to a double-peaked intensity distribution were observed. The intensity distribution along the waveguide was calculated, and the results agree well with the experimental observation.

  View details for Web of Science ID 000181411300007

  View details for PubMedID 12659259

• 160-Gb/s optical-time-division multiplexing with PPLN hybrid integrated planar lightwave circuit IEEE PHOTONICS TECHNOLOGY LETTERS Ohara, T., Takara, H., Shake, I., Mori, K., Kawanishi, S., Mino, S., Yamada, T., Ishii, M., Kitoh, T., Kitagawa, T., Parameswaran, K. R., Fejer, M. M. 2003; 15 (2): 302-304

  View details for DOI 10.1109/LPT.2002.806889

  View details for Web of Science ID 000180794100042

• Fine structure of the electron paramagnetic resonance spectrum of Fe3+ centres in LiTaO3 JOURNAL OF PHYSICS-CONDENSED MATTER Vazhenin, V. A., Guseva, V. B., Artyomov, M. Y., Route, R. K., Fejer, M. M., Byer, R. L. 2003; 15 (2): 275-280

  View details for Web of Science ID 000180989100041

• Difference frequency generation of 8-mu m radiation in orientation-patterned GaAs OPTICS LETTERS Levi, O., Pinguet, T. J., Skauli, T., Eyres, L. A., Parameswaran, K. R., Harris, J. S., Fejer, M. M., Kulp, T. J., Bisson, S. E., Gerard, B., Lallier, E., Becouarn, L. 2002; 27 (23): 2091-2093

  Abstract

  First-order quasi-phase-matched difference frequency generation of narrowband tunable mid-infrared light is demonstrated in orientation-patterned GaAs. The all-epitaxial orientation-patterned crystal is fabricated by a combination of molecular beam epitaxy and hydride vapor phase epitaxy. Lasers at 1.3 and 1.55 microm were mixed to give an idler output at 8 microm, with power and wavelength tuning consistent with theoretical estimates, indicating excellent material uniformity over the 19-mm-long and 500-microm-thick device.

  View details for Web of Science ID 000179565500011

  View details for PubMedID 18033451

• Wavelength conversion of subcarrier channels using difference frequency generation in a PPLN waveguide IEEE PHOTONICS TECHNOLOGY LETTERS Cardakli, M. C., Sahin, A. B., Adamczyk, O. H., Willner, A. E., Parameswaran, K. R., Fejer, M. M. 2002; 14 (9): 1327-1329

  View details for DOI 10.1109/LPT.2002.801063

  View details for Web of Science ID 000178071900033

• The application of quasi-phase-matched parametric light sources to practical infrared chemical sensing systems APPLIED PHYSICS B-LASERS AND OPTICS Kulp, T. J., Bisson, S. E., Bambha, R. P., Reichardt, T. A., Goers, U. B., Aniolek, K. W., Kliner, D. A., Richman, B. A., Armstrong, K. M., Sommers, R., Schmitt, R., Powers, P. E., Levi, O., Pinguet, T., Fejer, M., Koplow, J. P., Goldberg, L., Mcrae, T. G. 2002; 75 (2-3): 317-327

  View details for DOI 10.1007/s00340-002-0978-5

  View details for Web of Science ID 000178913900021

• Odd waveguide mode quasi-phase matching with angled and staggered gratings OPTICS LETTERS Kurz, J. R., Xie, X. P., Fejer, M. M. 2002; 27 (16): 1445-1447

  Abstract

  Angled and staggered gratings are used for quasi-phase matching of antisymmetric TM(10) modes in periodically poled lithium niobate waveguides with high efficiency. Control of the symmetry of the nonlinear coefficient d adds a new degree of freedom in the choice of which waveguide modes will interact in a quasi-phase-matched device.

  View details for Web of Science ID 000177484300025

  View details for PubMedID 18026474

• High-resolution spectroscopy of the K-39 transitions at 770 nm and (C2H2)-C-13 saturated lines by a solid-state laser at 1.54 mu m: Toward an accurate frequency standard in the optical communication band IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT Svelto, C., Galzerano, G., Bava, E., Ferrario, F., Arie, A., Klein, R., Arbore, M. A., Fejer, M. A., Onae, A., Marano, M. 2002; 51 (4): 764-769

  View details for DOI 10.1109/TIM.2002.803302

  View details for Web of Science ID 000178992000037

• Tunable-chirp pulse compression in quasi-phase-matched second-harmonic generation OPTICS LETTERS Schober, A. M., Imeshev, G., Fejer, M. M. 2002; 27 (13): 1129-1131

  Abstract

  We demonstrate continuously tunable compensation of linear chirp on a first-harmonic pump pulse to produce a near-transform-limited second-harmonic output pulse through the use of a chirped, fanned, periodically poled lithium niobate quasi-phase-matching grating. Compensation of positive and negative chirps is possible through reversal of device orientation. The device is simple and monolithic and can be applied to compensation of a higher-order phase with minor modification.

  View details for Web of Science ID 000176623100013

  View details for PubMedID 18026383

• Squeezed singly resonant second-harmonic generation in periodically poled lithium niobate JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Lawrence, M. J., Byer, R. L., Fejer, M. M., Bowen, W., Lam, P. K., Bachor, H. A. 2002; 19 (7): 1592-1598

  View details for Web of Science ID 000176818200013

• Efficiency-enhanced soliton optical parametric amplifier JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Rodriguez, S. C., Torres, J. P., Torner, L., Fejer, M. M. 2002; 19 (6): 1396-1400

  View details for Web of Science ID 000176205700022

• Sub-6-fs blue pulses generated by quasi-phase-matching second-harmonic generation pulse compression 3rd Ultrafast Optics Conference Gallmann, L., Steinmeyer, G., Imeshev, G., Meyn, J. P., Fejer, M. M., Keller, U. SPRINGER. 2002: S237–S243

  View details for DOI 10.1007/s00340-002-0886-8

  View details for Web of Science ID 000177812200040

• Thermal noise in half-infinite mirrors with nonuniform loss: A slab of excess loss in a half-infinite mirror PHYSICAL REVIEW D Nakagawa, N., Gretarsson, A. M., Gustafson, E. K., Fejer, M. M. 2002; 65 (10)

  View details for DOI 10.1103/PhysRevD.65.102001

  View details for Web of Science ID 000175774200003

• Nonlinear physical optics with transversely patterned quasi-phase-matching gratings IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS Kurz, J. R., Schober, A. M., Hum, D. S., Saltzman, A. J., Fejer, M. M. 2002; 8 (3): 660-664

  View details for Web of Science ID 000176680400030

• Measurement of the nonlinear coefficient of orientation-patterned GaAs and demonstration of highly efficient second-harmonic generation OPTICS LETTERS Skauli, T., Vodopyanov, K. L., Pinguet, T. J., Schober, A., Levi, O., Eyres, L. A., Fejer, M. M., Harris, J. S., Gerard, B., Becouarn, L., Lallier, E., Arisholm, G. 2002; 27 (8): 628-630

  Abstract

  Quasi-phase-matched (QPM) GaAs structures, 0.5 mm thick, 10 mm long, and with 61-mum grating periods, were grown by a combination of molecular-beam epitaxy and hydride vapor phase epitaxy. These were characterized by use of mid-IR second-harmonic generation (SHG) with a ZnGeP(2) (ZGP) optical parametric oscillator as a pump source. The SHG efficiencies of QPM GaAs and QPM LiNbO(3) were directly compared, and a ratio of nonlinear coefficients d(14)(GaAs)/d(33) (LiNbO(3))=5.01+/-0.3 was found at 4.1-mum fundamental wavelength. For input pulse energies as low as 50muJ and approximately 60-ns pulse duration, an internal SHG conversion efficiency of 33% was measured in QPM GaAs.

  View details for Web of Science ID 000175116000022

  View details for PubMedID 18007884

• Estimating the off resonance thermal noise in mirrors, Fabry-Perot interferometers, and delay lines: The half infinite mirror with uniform loss PHYSICAL REVIEW D Nakagawa, N., Gustafson, E. K., Beyersdorf, P. T., Fejer, M. M. 2002; 65 (8)

  View details for DOI 10.1103/PhysRevD.65.082002

  View details for Web of Science ID 000175146900005

• Results from the Stanford 10 m Sagnac interferometer 4th Edoardo Amaldi Conference on Gravitational Waves Beyersdorf, P. T., Byer, R. L., Fejer, M. M. IOP PUBLISHING LTD. 2002: 1585–89

  View details for Web of Science ID 000175178400049

• Interchannel cross talk caused by pump depletion in periodically poled LiNbO3 waveguide wavelength converters 8th OSA Topical Meeting on Nonlinear Guided Waves and Their Application (NLGW) Harel, R., Burkett, W. H., Lenz, G., Chaban, E. E., Parameswaran, K. R., Fejer, M. M., Brener, I. OPTICAL SOC AMER. 2002: 849–51

  View details for Web of Science ID 000175017800030

• Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides with simultaneous strong pump depletion and group-velocity walk-off 8th OSA Topical Meeting on Nonlinear Guided Waves and Their Application (NLGW) Zheng, Z., Weiner, A. M., Parameswaran, K. R., Chou, M. H., Fejer, M. M. OPTICAL SOC AMER. 2002: 839–48

  View details for Web of Science ID 000175017800029

• Periodic poling of magnesium-oxide-doped lithium niobate JOURNAL OF APPLIED PHYSICS Nakamura, K., Kurz, J., Parameswaran, K., Fejer, M. M. 2002; 91 (7): 4528-4534

  View details for DOI 10.1063/1.14596965

  View details for Web of Science ID 000174663900088

• Pulse compression and gain enhancement in a degenerate optical parametric amplifier based on aperiodically poled crystals OPTICS LETTERS Artigas, D., Reid, D. T., Fejer, M. M., Torner, L. 2002; 27 (6): 442-444

  Abstract

  We describe theoretically a method of obtaining pulse compression and simultaneously improving amplification in a degenerate optical parametric amplifier by use of quasi-phase-matched engineered crystals. The scheme combines the possibility of increasing the signal spectral bandwidth that is offered by a degenerate parametric amplifier with the ability of engineered aperiodically poled crystals to compensate for group-velocity mismatch.

  View details for Web of Science ID 000174440800022

  View details for PubMedID 18007828

• Excess mechanical loss associated with dielectric mirror coatings on test masses in interferometric gravitational wave detectors CLASSICAL AND QUANTUM GRAVITY Crooks, D. R., Sneddon, P., Cagnoli, G., Hough, J., Rowan, S., Fejer, M. M., Gustafson, E., Route, R., Nakagawa, N., Coyne, D., Harry, G. M., Gretarsson, A. M. 2002; 19 (5): 883-896

  View details for Web of Science ID 000174531800005

• Thermal noise in interferometric gravitational wave detectors due to dielectric optical coatings CLASSICAL AND QUANTUM GRAVITY Harry, G. M., Gretarsson, A. M., Saulson, P. R., Kittelberger, S. E., Penn, S. D., Startin, W. J., Rowan, S., Fejer, M. M., Crooks, D. R., Cagnoli, G., Hough, J., Nakagawa, N. 2002; 19 (5): 897-917

  View details for Web of Science ID 000174531800006

• X-ray-induced phase transformation in congruent and vapor-transport-equilibrated lithium tantalate and lithium niobate APPLIED PHYSICS LETTERS Shur, V. Y., Blankova, E. B., Rumyantsev, E. L., Nikolaeva, E. V., Shishkin, E. I., Barannikov, A. V., Route, R. K., Fejer, M. M., Byer, R. L. 2002; 80 (6): 1037-1039

  View details for Web of Science ID 000173612900045

• Squeezing in a LiNbO3 integrated optical waveguide circuit OPTICS EXPRESS Kanter, G. S., Kumar, P., Roussev, R. V., Kurz, J., Parameswaran, K. R., Fejer, M. M. 2002; 10 (3): 177-182

  Abstract

  We report on traveling-wave quadrature squeezing generated in an integrated optical circuit fabricated with periodicallypoled lithium niobate waveguides. The device integrates a secondharmonic-generation stage, waveguide couplers, spatial mode filters, and a degenerate-optical-parametric-amplification stage. The integrationpromises to create a low power, compact, and simple source of wideband squeezed light. -1 dB of squeezing is directly measured using 20 ps pulses with peak powers near 6W.

  View details for DOI 10.1364/OE.10.000177

  View details for Web of Science ID 000173805700005

  View details for PubMedID 19424347

• Highly efficient second-harmonic generation in buried waveguides formed by annealed and reverse proton exchange in periodically poled lithium niobate OPTICS LETTERS Parameswaran, K. R., Route, R. K., Kurz, J. R., Roussev, R. V., Fejer, M. M., Fujimura, M. 2002; 27 (3): 179-181

  Abstract

  Efficient three-wave mixing devices have numerous applications, including wavelength conversion, dispersion compensation, and all-optical switching. Second-harmonic generation (SHG) is a useful diagnostic for near-degenerate operation of these devices. With buried waveguides formed in periodically poled lithium niobate by annealed and reverse proton exchange, we demonstrate what is believed to be the highest normalized conversion efficiency (150%/W cm(2)) for SHG in the 1550-nm communications band reported to date.

  View details for Web of Science ID 000173449200011

  View details for PubMedID 18007748

• Tunable all-optical time-slot-interchange and wavelength conversion using difference-frequency-generation and optical buffers IEEE PHOTONICS TECHNOLOGY LETTERS Cardakli, M. C., Gurkan, D., Havstad, S. A., Willner, A. E., Parameswaran, K. R., Fejer, M. M., Brener, I. 2002; 14 (2): 200-202

  View details for Web of Science ID 000173534100024

• Domain kinetics in congruent and stoichiometric lithium niobate 10th International Meeting on Ferroelectricity Shur, V. Y., Rumyantsev, E. L., Nikolaeva, E. V., Shishkin, E. I., Batchko, R. G., Fejer, M. M., Byer, R. L., Mnushkina, I. TAYLOR & FRANCIS LTD. 2002: 189–194

  View details for Web of Science ID 000176861800033

• Observation of 99% pump depletion in single-pass second-harmonic generation in a periodically poled lithium niobate waveguide OPTICS LETTERS Parameswaran, K. R., Kurz, J. R., Roussev, R. V., Fejer, M. M. 2002; 27 (1): 43-45

  Abstract

  We report 99% pump depletion in single-pass second-harmonic generation. Quasi-cw pulses at 1550 nm were frequency doubled in an annealed proton-exchanged waveguide formed in periodically poled lithium niobate. Measurements of pump depletion and second-harmonic generation agree with results from numerical integration of the coupled-mode equations that describe the process.

  View details for Web of Science ID 000172886500015

  View details for PubMedID 18007710

• Optical-frequency balanced mixer OPTICS LETTERS Kurz, J. R., Parameswaran, K. R., Roussev, R. V., Fejer, M. M. 2001; 26 (16): 1283-1285

  Abstract

  Optical signal processing devices based on quasi-phase-matched three-wave mixing and cascaded three-wave mixing in guided-wave geometries have been demonstrated to operate efficiently at practical pump-power levels. We describe operation of such devices in a balanced mode that allows mixing without wavelength offset and separation of mixed output from pump and signal input without wavelength-selective filters. We present a design for an optical-frequency balanced mixer using quasi-phase-matched, cascaded second-order nonlinear processes. Using this design, we fabricated a balanced mixer in periodically poled lithium niobate waveguides that has the expected linear and nonlinear optical performance.

  View details for Web of Science ID 000170411500025

  View details for PubMedID 18049587

• All-epitaxial fabrication of thick, orientation-patterned GaAs films for nonlinear optical frequency conversion APPLIED PHYSICS LETTERS Eyres, L. A., Tourreau, P. J., Pinguet, T. J., Ebert, C. B., Harris, J. S., Fejer, M. M., Becouarn, L., Gerard, B., Lallier, E. 2001; 79 (7): 904-906

  View details for Web of Science ID 000170277500004

• Measurement of birefringence of low-loss, high-reflectance coating of m-axis sapphire APPLIED OPTICS Camp, J. B., Kells, W., Fejer, M. M., Gustafson, E. 2001; 40 (22): 3753-3758

  Abstract

  The birefringence of a low-loss, high-reflectance coating applied to an 8-cm-diameter sapphire crystal grown in the m-axis direction has been mapped. By monitoring the transmission of a high-finesse Fabry-Perot cavity as a function of the polarization of the input light, we find an upper limit for the magnitude of the birefringence of 2.5 x 10(-4) rad and an upper limit in the variation in direction of the birefringence of 10 deg. These values are sufficiently small to allow consideration of m-axis sapphire as a substrate material for the optics of the advanced detector at the Laser Interferometer Gravitational Wave Observatory.

  View details for Web of Science ID 000170157500018

  View details for PubMedID 18360409

• Fabrication of periodically poled lithium tantalate for UV generation with diode lasers APPLIED PHYSICS B-LASERS AND OPTICS Meyn, J. P., Laue, C., Knappe, R., Wallenstein, R., Fejer, M. M. 2001; 73 (2): 111-114

  View details for Web of Science ID 000170723300004

• All-optical diode in a periodically poled lithium niobate waveguide APPLIED PHYSICS LETTERS Gallo, K., Assanto, G., Parameswaran, K. R., Fejer, M. M. 2001; 79 (3): 314-316

  View details for Web of Science ID 000169776000012

• High sensitivity waveform measurement with optical sampling using quasi-phasematched mixing in LiNBO3 waveguide ELECTRONICS LETTERS Kawanishi, S., Yamamoto, T., Nakazawa, M., Fejer, M. M. 2001; 37 (13): 842-844

  View details for Web of Science ID 000169697100027

• Generation of sub-6-fs blue pulses by frequency doubling with quasi-phase-matching gratings OPTICS LETTERS Gallmann, L., Steinmeyer, G., Keller, U., Imeshev, G., Fejer, M. M., Meyn, J. P. 2001; 26 (9): 614-616

  Abstract

  We demonstrate the generation of sub-6-fs pulses centered at 405 nm by frequency doubling of 8.6-fs Ti:sapphire laser pulses. The frequency doubling is carried out in a nonlinearly chirped quasi-phase-matching grating fabricated in a lithium tantalate substrate. This device simultaneously provides frequency conversion and pulse compression of the positively prechirped fundamental pulses. The second-harmonic pulses are characterized in a cross-correlation setup, and their pulse shapes are retrieved by two iterative phase-reconstruction algorithms. The generated second-harmonic spectrum spans a bandwidth of 220 THz. To our knowledge, these are the shortest pulses ever generated in the blue spectral region.

  View details for Web of Science ID 000168349400014

  View details for PubMedID 18040400

• Green-induced infrared absorption in MgO doped LiNbO3 APPLIED PHYSICS LETTERS Furukawa, Y., Kitamura, K., Alexandrovski, A., Route, R. K., Fejer, M. M., Foulon, G. 2001; 78 (14): 1970-1972

  View details for Web of Science ID 000167744800004

• Pulse shaping by difference-frequency mixing with quasi-phase-matching gratings JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Imeshev, G., Fejer, M. M., Galvanauskas, A., Harter, D. 2001; 18 (4): 534-539

  View details for Web of Science ID 000167975000015

• Frequency stabilization of a novel 1.5-mu m Er-Yb bulk laser to a K-39 sub-Doppler line at 770.1 nm IEEE JOURNAL OF QUANTUM ELECTRONICS Svelto, C., Ferrario, F., Arie, A., Arbore, M. A., Fejer, M. M. 2001; 37 (4): 505-510

  View details for Web of Science ID 000167766000003

• Wavelength-selective pulsed all-optical switching based on cascaded second-order nonlinearity in a periodically poled lithium-niobate waveguide IEEE PHOTONICS TECHNOLOGY LETTERS Kanter, G. S., Kumar, P., Parameswaran, K. R., Fejer, M. M. 2001; 13 (4): 341-343

  View details for Web of Science ID 000168159700027

• Low-power spectral phase correlator using periodically poled LiNbO3 waveguides IEEE PHOTONICS TECHNOLOGY LETTERS Zheng, Z., Weiner, A. M., Parameswaran, K. R., Chou, M. H., Fejer, M. M. 2001; 13 (4): 376-378

  View details for Web of Science ID 000168159700039

• Generation of dual-wavelength pulses by frequency doubling with quasi-phase-matching gratings OPTICS LETTERS Imeshev, G., Fejer, M. M., Galvanauskas, A., Harter, D. 2001; 26 (5): 268-270

  Abstract

  We demonstrate generation of two synchronized picosecond pulses at different wavelengths near 778 nm by frequency doubling of a femtosecond pulse. We use nonlinear frequency filtering with quasi-phase-matching gratings, which allow us to obtain second-harmonic spectral intensities that are higher than the spectral intensities of the pump.

  View details for Web of Science ID 000167183400006

  View details for PubMedID 18040297

• Evaluating the effect of transmissive optic thermal lensing on laser beam quality with a Shack-Hartmann wave-front sensor APPLIED OPTICS Mansell, J. D., Hennawi, J., Gustafson, E. K., Fejer, M. M., Dyer, R. L., Clubley, D., Yoshida, S., Reitze, D. H. 2001; 40 (3): 366-374

  Abstract

  We examine wave-front distortion caused by high-power lasers on transmissive optics using a Shack-Hartmann wave-front sensor. The coupling coefficient for a thermally aberrated Gaussian beam to the TEM(00) mode of a cavity was determined as a function of magnitude of the thermally induced aberration. One wave of thermally induced phase aberration between the Gaussian intensity peak and the 1/e(2) radius of the intensity profile reduces the power-coupling coefficient to the TEM(00) mode of the cavity to 4.5% with no compensation. With optimal focus compensation the power coupling is increased to 79%. The theoretical shape of the thermally induced optical phase aberration is compared with measurements made in a neutral-density filter glass, Faraday glass, and lithium niobate. The agreement between the theoretical and the measured thermal aberration profiles is within the rms wave-front measurement sensitivity of the Shack-Hartmann wave-front sensor, which is a few nanometers.

  View details for Web of Science ID 000166430000008

  View details for PubMedID 18357010

• Formation of self-organized nanodomain patterns during spontaneous backswitching in lithium niobate 6th International Symposium on Ferroic Domains and Mesoscopic Structures (ISFD-6) Shur, V. Y., Rumyantsev, E. L., Nikolaeva, E. V., Shishkin, E. I., Fursov, D. V., Batchko, R. G., Eyres, L. A., Fejer, M. M., Byer, R. L., Sindel, J. TAYLOR & FRANCIS LTD. 2001: 661–70

  View details for Web of Science ID 000177213800013

• Recent achievements in domain engineering in lithium niobate and lithium tantalate 5th European Conference on Applications of Polar Dielectrics (ECAPD-V) Shur, V. Y., Rumyantsev, E. L., Nikolaeva, E. V., Shishkin, E. I., Batchko, R. G., Fejer, M. M., Byer, R. L. TAYLOR & FRANCIS LTD. 2001: 191–202

  View details for Web of Science ID 000177214900026

• 160Gbit/s wavelength shifting and phase conjugation using periodically poled LiNbO3 waveguide parametric converter ELECTRONICS LETTERS Brener, I., Mikkelsen, B., Raybon, G., Harel, R., Parameswaran, K., Kurz, J. R., Fejer, M. M. 2000; 36 (21): 1788-1790

  View details for Web of Science ID 000090131400025

• All-optical modulation and time-division-multiplexing of 100Gbit/s signal using quasi-phasematched mixing in LiNbO3 waveguides ELECTRONICS LETTERS Kawanishi, S., Chou, M. H., Fujiura, K., Fejer, M. M., Morioka, T. 2000; 36 (18): 1568-1569

  View details for Web of Science ID 000089641700037

• Pulse shaping and compression by second-harmonic generation with quasi-phase-matching gratings in the presence of arbitrary dispersion JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Imeshev, G., Arbore, M. A., Kasriel, S., Fejer, M. M. 2000; 17 (8): 1420-1437

  View details for Web of Science ID 000088752800014

• Damping dilution factor for a pendulum in an interferometric gravitational waves detector PHYSICS LETTERS A Cagnoli, G., Hough, J., DeBra, D., Fejer, M. M., Gustafson, E., Rowan, S., Mitrofanov, V. 2000; 272 (1-2): 39-45

  View details for Web of Science ID 000088323300006

• Frequency stabilization of a frequency-doubled 1556-nm source to the 5S(1/2)-> 5D(5/2) two-photon transitions of rubidium OPTICS LETTERS Danielli, A., Rusian, P., Arie, A., Chou, M. H., Fejer, M. M. 2000; 25 (12): 905-907

  Abstract

  Improvements in the power level of sources near 1550 nm and in the efficiency of waveguide frequency doublers enabled us to lock a frequency-doubled source directly to the 5S(1/2) ? 5D(5/2) two-photon transitions near 778 nm. We obtained a sufficiently powerful second-harmonic signal, exceeding 2 mW, by doubling an external-cavity diode laser that was amplified by an erbium-doped fiber amplifier in a periodically poled LiNbO(3) channel waveguide. Our experimental scheme can be used for realizing compact, high-performance frequency standards near 1550 nm for fiber-optic communication and sensing applications.

  View details for Web of Science ID 000087642400013

  View details for PubMedID 18064222

• Optical signal processing and switching with second-order nonlinearities in waveguides IEICE TRANSACTIONS ON ELECTRONICS Chou, M. H., Parameswaran, K. R., Fejer, M. M., Brener, I. 2000; E83C (6): 869-874

  View details for Web of Science ID 000087901700011

• Low-power all-optical gate based on sum frequency mixing in APE waveguides in PPLN IEEE PHOTONICS TECHNOLOGY LETTERS Parameswaran, K. R., Fujimura, M., Chou, M. H., Fejer, M. M. 2000; 12 (6): 654-656

  View details for Web of Science ID 000088207200022

• Polarization Sagnac interferometer with a reflective grating beam splitter OPTICS LETTERS Traeger, S., Beyersdorf, P., Goddard, L., Gustafson, E., Fejer, M. M., Byer, R. L. 2000; 25 (10): 722-724

  Abstract

  All-reflective interferometric gravitational-wave detector configurations with a diffraction grating as a power beam splitter have been proposed to reduce thermal lensing. We demonstrate the use of a diffraction grating as a polarization beam splitter in a zero-area polarization Sagnac interferometer.

  View details for Web of Science ID 000086991900014

  View details for PubMedID 18064163

• Ultrashort-pulse second-harmonic generation with longitudinally nonuniform quasi-phase-matching gratings: pulse compression and shaping JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Imeshev, G., Arbore, M. A., Fejer, M. M., Galvanauskas, A., Fermann, M., Harter, D. 2000; 17 (2): 304-318

  View details for Web of Science ID 000085255100019

• Investigation of mechanical loss factors of some candidate materials for the test masses of gravitational wave detectors PHYSICS LETTERS A Rowan, S., Cagnoli, G., Sneddon, P., Hough, J., Route, R., Gustafson, E. K., Fejer, M. M., Mitrofanov, V. 2000; 265 (1-2): 5-11

  View details for Web of Science ID 000084957500002

• Nanoscale backswitched domain patterning in lithium niobate APPLIED PHYSICS LETTERS Shur, V. Y., Rumyantsev, E. L., Nikolaeva, E. V., Shishkin, E. I., Fursov, D. V., Batchko, R. G., Eyres, L. A., Fejer, M. M., Byer, R. L. 2000; 76 (2): 143-145

  View details for Web of Science ID 000084541000005

• Polarisation-insensitive wavelength converter based on cascaded nonlinearities in LiNbO3 waveguides ELECTRONICS LETTERS Brener, I., Chou, M. H., Chaban, E., Parameswaran, K. R., Fejer, M. M., Kosinski, S., Pruitt, D. L. 2000; 36 (1): 66-67

  View details for Web of Science ID 000085048400046

• Efficient wide-band and tunable midspan spectral inverter using cascaded nonlinearities in LiNbO3 waveguides IEEE PHOTONICS TECHNOLOGY LETTERS Chou, M. H., Brener, I., Lenz, G., Scotti, R., Chaban, E. E., Shmulovich, J., Philen, D., Kosinski, S., Parameswaran, K. R., Fejer, M. M. 2000; 12 (1): 82-84

  View details for Web of Science ID 000084696900029

• Nanosecond periodically poled lithium niobate optical parametric generator pumped at 532 nm by a single-frequency passively Q-switched Nd : YAG laser OPTICS LETTERS Bader, U., Meyn, J. P., Bartschke, J., Weber, T., Borsutzky, A., Wallenstein, R., Batchko, R. G., Fejer, M. M., Byer, R. L. 1999; 24 (22): 1608-1610

  Abstract

  We report an efficient, visible, nanosecond optical parametric generator of periodically poled lithium niobate pumped at 532 nm by a frequency-doubled, diode-pumped, passively Q -switched, single-mode Nd:YAG laser with 90-muJ pulse energy. The signal radiation is tunable from 637 to 593 nm. The maximum signal-conversion efficiency is 23%. Optical parametric amplification of a He-Ne laser at 632.8 nm is also studied.

  View details for Web of Science ID 000083745900023

  View details for PubMedID 18079879

• Nonlinear directional coupler in periodically poled lithium niobate OPTICS LETTERS Schiek, R., Friedrich, L., Fang, H., Stegeman, G. I., Parameswaran, K. R., Chou, M. H., Fejer, M. M. 1999; 24 (22): 1617-1619

  Abstract

  Nonlinear wave propagation was investigated experimentally in coupled waveguides by means of the cascaded nonlinearity in quasi-phase-matched second-harmonic generation. With a specially designed wave-vector-mismatch distribution along the propagation axis, cascading was optimized for low fundamental depletion. High-contrast, ultrafast all-optical switching with switching powers of tens of watts was observed.

  View details for Web of Science ID 000083745900026

  View details for PubMedID 18079882

• Domain kinetics in the formation of a periodic domain structure in lithium niobate PHYSICS OF THE SOLID STATE Shur, V. Y., Rumyantsev, E. L., Batchko, R. G., Miller, G. D., Fejer, M. M., Byer, R. L. 1999; 41 (10): 1681-1687

  View details for Web of Science ID 000083295700024

• Backswitch poling in lithium niobate for high-fidelity domain patterning and efficient blue light generation APPLIED PHYSICS LETTERS Batchko, R. G., Shur, V. Y., Fejer, M. M., Byer, R. L. 1999; 75 (12): 1673-1675

  View details for Web of Science ID 000082547100007

• Continuous-wave quasi-phase-matched generation of 60 mW at 465 nm by single-pass frequency doubling of a laser diode in backswitch-poled lithium niobate OPTICS LETTERS Batchko, R. G., Fejer, M. M., Byer, R. L., Woll, D., Wallenstein, R., Shur, V. Y., Erman, L. 1999; 24 (18): 1293-1295

  Abstract

  We report continuous-wave single-pass second-harmonic generation (SHG) in 4-mum -period 0.5-mm-thick backswitch-poled lithium niobate. Pump sources at 920-930 nm include both Ti:sapphire and diode-oscillator-amplifier lasers. SHG of a Ti:sapphire laser at 6.1%/W efficiency, producing 61 mW of power at 460 nm, is demonstrated in 50-mm-long periodically poled lithium niobate samples with a nonlinear coefficient d(eff) approximately 9pm/V, and 60 mW at 465 nm and 2.8%/W efficiency is obtained by SHG of a laser-diode source.

  View details for Web of Science ID 000082832000013

  View details for PubMedID 18079784

• Polarization Sagnac interferometer with a common-path local oscillator for heterodyne detection JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Beyersdorf, P. T., Fejer, M. M., Byer, R. L. 1999; 16 (9): 1354-1358

  View details for Web of Science ID 000082514100005

• Atomic flux measurement by diode-laser-based atomic absorption spectroscopy JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A Wang, W. Z., Hammond, R. H., Fejer, M. M., Beasley, M. R. 1999; 17 (5): 2676-2684

  View details for Web of Science ID 000082596600039

• Polarization Sagnac interferometer with postmodulation for gravitational-wave detection OPTICS LETTERS Beyersdorf, P. T., Fejer, M. M., Byer, R. L. 1999; 24 (16): 1112-1114

  Abstract

  We describe a polarization Sagnac interferometer with an in-loop half-wave plate that allows signal detection at the reciprocal port of the beam splitter while maintaining the ability to detect the signal at a dark fringe. Postmodulation and balanced heterodyne detection are used to recover the signal. This topology is simple to control because of its common-path characteristics and its collinear signal and local oscillator. The robustness of this scheme to amplitude and frequency fluctuations of the laser is demonstrated. Intraloop birefringence in this interferometer acts as a loss, reducing the power on the detector. The magnitude of this loss is discussed and experimentally verified.

  View details for Web of Science ID 000082076400010

  View details for PubMedID 18073956

• Multiple-channel wavelength conversion by use of engineered quasi-phase-matching structures in LiNbO3 waveguides OPTICS LETTERS Chou, M. H., Parameswaran, K. R., Fejer, M. M., Brener, I. 1999; 24 (16): 1157-1159

  Abstract

  We report difference frequency generation-based wavelength converters with multiple phase-matching wavelengths that use engineered quasi-phase-matching structures in LiNbO(3) waveguides. Multiple-channel wavelength conversion is demonstrated within the 1.5-mum band and between the 1.3- and 1.5-mum bands. With simultaneous use of M pump wavelengths, these devices can also be used to perform wavelength broadcasting, in which each of N input signals is converted into M output wavelengths.

  View details for Web of Science ID 000082076400025

  View details for PubMedID 18073971

• Cascaded chi((2)) wavelength converter in LiNbO3 waveguides with counter-propagating beams ELECTRONICS LETTERS Brener, I., Chou, M. H., Peale, D., Fejer, M. M. 1999; 35 (14): 1155-1157

  View details for Web of Science ID 000082031900025

• Stability and bandwidth enhancement of difference frequency generation (DFG)-based wavelength conversion by pump detuning ELECTRONICS LETTERS Chou, M. H., Brener, I., Parameswaran, K. R., Fejer, M. M. 1999; 35 (12): 978-980

  View details for Web of Science ID 000081284800024

• 1.5-mu m-band wavelength conversion based on cascaded second-order nonlinearity in LiNbO3 waveguides IEEE PHOTONICS TECHNOLOGY LETTERS Chou, M. H., Brener, I., Fejer, M. M., Chaban, E. E., Christman, S. B. 1999; 11 (6): 653-655

  View details for Web of Science ID 000080462200009

• MBE growth of antiphase GaAs films using GaAs/Ge/GaAs heteroepitaxy 10th International Conference on Molecular Beam Epitaxy (MBE-X) Ebert, C. B., Eyres, L. A., Fejer, M. M., Harris, J. S. ELSEVIER SCIENCE BV. 1999: 187–193

  View details for Web of Science ID 000080406000041

• Amplification in 1.2-1.7 mu m communication window using OPA in PPLN waveguides ELECTRONICS LETTERS Galvanauskas, A., Wong, K. K., El Hadi, K., Hofer, M., Fermann, M. E., Harter, D., Chou, M. H., Fejer, M. M. 1999; 35 (9): 731-733

  View details for Web of Science ID 000080545000036

• UV and visible absorption in LiTaO3 Conference on Laser Material Crystal Growth and Nonlinear Materials and Devices Alexandrovski, A. L., Foulon, G., Myers, L. E., Route, R. K., Fejer, M. M. SPIE - INT SOC OPTICAL ENGINEERING. 1999: 44–51

  View details for Web of Science ID 000081054100006

• Backswitch poling of 0.5-mm-thick lithium niobate for 6.4%/W-efficient cw second harmonic generation of 460 nm light Topical Meeting on Advanced Solid-State Lasers Batchko, R. G., Fejer, M. M., Byer, R. L., Shur, V. Y., Erman, L. OPTICAL SOC AMERICA. 1999: 707–708

  View details for Web of Science ID 000173833200137

• Resonant, continuous wave, sum frequency mixing of two Nd3+ lasers in periodically poled lithium niobate LASER PHYSICS Kretschmann, H. M., Huber, G., Batchko, R. G., Meyn, J. P., Fejer, M. M., Byer, R. L. 1999; 9 (1): 293-298

  View details for Web of Science ID 000078848200043

• Domain patterning in lithium niobate using spontaneous backswitching Conference on Laser Material Crystal Growth and Nonlinear Materials and Devices Batchko, R. G., Miller, G. D., Shur, V. Y., Rumyantsev, E. L., Fejer, M. M., Byer, R. L. SPIE - INT SOC OPTICAL ENGINEERING. 1999: 36–43

  View details for Web of Science ID 000081054100005

• Physical basis of the domain engineering in the bulk ferroelectrics 5th International Symposium on Ferroic Domains and Mesoscopic Structures (ISFD-5) Shur, V., Rumyantsev, E., Batchko, R., Miller, G., Fejer, M., Byer, R. TAYLOR & FRANCIS LTD. 1999: 157–67

  View details for Web of Science ID 000081363200022

• Quantum noise in a continuous-wave laser-diode-pumped Nd : YAG linear optical amplifier OPTICS LETTERS Tulloch, W. M., Rutherford, T. S., Huntington, E. H., Ewart, R., Harb, C. C., Willke, B., Gustafson, E. K., Fejer, M. M., Byer, R. L., Rowan, S., Hough, J. 1998; 23 (23): 1852-1854

  Abstract

  We present measurements of the power noise that is due to optical amplification in a laser-diode-pumped Nd:YAG free-space traveling-wave linear amplifier in a master-oscillator-power-amplifier configuration. The quantum noise behavior of the optical amplifier was demonstrated by use of InGaAs photodetectors in a balanced detection configuration, at a total photocurrent of 100 mA and in a frequency band from 6.25 to 15.625 MHz. The experimental results are in good agreement with predictions.

  View details for Web of Science ID 000077342300020

  View details for PubMedID 18091935

• Light-emitting diodes: A novel light source for phototherapy PEDIATRIC RESEARCH Vreman, H. J., Wong, R. J., Stevenson, D. K., Route, R. K., Reader, S. D., Fejer, M. M., Gale, R., Seidman, D. S. 1998; 44 (5): 804-809

  Abstract

  High intensity light-emitting diodes (LEDs) are being studied as possible light sources for the phototherapy of hyperbilirubinemic neonates. These power-efficient, low heat-producing light sources have the potential to deliver high intensity light of narrow wavelength band in the blue-green portion of the visible light spectrum, which overlaps the absorption spectrum of bilirubin (BR). We compared the efficacy between single LEDs of different color and then constructed a prototype phototherapy device using 300 blue LEDs. The efficacy of this device was compared with that of conventional phototherapy devices by measuring the in vitro photodegradation of BR in human serum albumin. When blue, blue-green, green, and white LEDs were compared, the blue light was the most effective in degrading BR by 28% of dark control, followed by blue-green (18% of control), and then white light (14% of control). Green light was the least effective (11% of control). The prototype device with three focused arrays, each with 100 blue LEDs, generated greater irradiance (> 200 microW.cm-2.nm-1) than any of the conventional devices tested. It also supported the greatest rate of BR photodegradation. We conclude that light from LEDs should be considered a more effective treatment for hyperbilirubinemia than light from presently used phototherapy devices. Furthermore, the unique characteristics of this light source may make it especially suitable for use in safe and lightweight home phototherapy devices.

  View details for PubMedID 9803466

• Chirped-pulse amplification circuits for fiber amplifiers, based on chirped-period quasi-phase-matching gratings OPTICS LETTERS Galvanauskas, A., Harter, D., Arbore, M. A., Chou, M. H., Fejer, M. M. 1998; 23 (21): 1695-1697

  Abstract

  A new type of compact chirped-pulse-amplification circuit for high-power amplification of femtosecond pulses in an optical fiber is demonstrated. This circuit is based on a novel pulse compressor, chirped-period quasi-phase-matching gratings in electric-field-poled lithium niobate. The main advantages of this circuit are simplicity, the small number of components, compactness, and wavelength conversion of Er-doped fiber output to the technologically important 780-nm wavelength region.

  View details for Web of Science ID 000076646900020

  View details for PubMedID 18091887

• Frequency stability at the kilohertz level of a rubidium-locked diode laser at 192.114 THz APPLIED OPTICS Bruner, A., Mahal, V., Kiryuschev, I., Arie, A., Arbore, M. A., Fejer, M. M. 1998; 37 (27): 6410-6414

  Abstract

  The frequency stability of a 1560-nm diode laser, whose second harmonic was locked to (87)Rb sub-Doppler lines, was characterized by measuring the beat frequency relative to a 780-nm reference laser that was locked to sub-Doppler lines of another rubidium cell. The square root of the Allan variance reached a minimum value of 7.5 x 10(-12) in 1 s, which corresponded to frequency variations of 1.44 kHz for the 1560-nm laser. The frequency reproducibility of the system was approximately 1 x 10(-9). These values are better than those that can be achieved by locking to Doppler-broadened transitions at the 1550-nm wavelength band.

  View details for Web of Science ID 000076038400015

  View details for PubMedID 18286144

• 1.5-mu m-band wavelength conversion based on difference-frequency generation in LiNbO3 waveguides with integrated coupling structures OPTICS LETTERS Chou, M. H., Hauden, J., Arbore, M. A., Fejer, M. M. 1998; 23 (13): 1004-1006

  Abstract

  We report wavelength conversion within the 1.5-mum telecommunications band based on difference-frequency generation in periodically poled lithium niobate waveguides with integrated coupling structures. A conversion efficiency of -7 dB and a normalized efficiency of 260%/W are demonstrated. Static tests show that the conversion bandwidth is 72 nm and the conversion efficiency is constant over the 20-dB range of input powers tested.

  View details for Web of Science ID 000074593000008

  View details for PubMedID 18087410

• 16-mu m infrared generation by difference-frequency mixing in diffusion-bonded-stacked GaAs OPTICS LETTERS Zheng, D., Gordon, L. A., Wu, Y. S., Feigelson, R. S., Fejer, M. M., Byer, R. L., Vodopyanov, K. L. 1998; 23 (13): 1010-1012

  Abstract

  Tunable 90-ps 15.6-17.6-microm coherent radiation was generated by means of difference-frequency mixing in diffusion-bonded-stacked GaAs. The sample consisted of 24 alternately rotated layers with a total length of 6 mm and with low optical loss to achieve third-order quasi-phase matching. The wavelength-tuning curve was close to the theoretical prediction, demonstrating that the bonding process maintained nonlinear optical phase matching over the entire interaction length. Maximum conversion efficiency of 0.7%, or 5% internal quantum efficiency, was measured at 16.6 microm, consistent with the theoretical predictions.

  View details for Web of Science ID 000074593000010

  View details for PubMedID 18087412

• Adiabatic shaping of quadratic solitons OPTICS LETTERS Torner, L., Clausen, C. B., Fejer, M. M. 1998; 23 (12): 903-905

  Abstract

  We show the principle of operation of a setup to adiabatically shape solitons in quadratic nonlinear media to different beam profiles and widths or different fractions of energy carried by the second-harmonic wave. The shaping mechanism is based on soliton generation and propagation in chirped, quasi-phase-matched samples.

  View details for Web of Science ID 000074261700005

  View details for PubMedID 18087378

• Engineerable femtosecond pulse shaping by second-harmonic generation with Fourier synthetic quasi-phase-matching gratings OPTICS LETTERS Imeshev, G., Galvanauskas, A., Harter, D., Arbore, M. A., Proctor, M., Fejer, M. M. 1998; 23 (11): 864-866

  Abstract

  We describe a pulse-shaping technique that uses second-harmonic generation with Fourier synthetic quasi-phase-matching gratings. We demonstrate both amplitude and phase tailoring by generating a picosecond squarelike pulse as well as trains of femtosecond pulses with a terahertz-range repetition rate from either a compressed or a chirped pump pulse.

  View details for Web of Science ID 000074069500017

  View details for PubMedID 18087367

• Effects of wafer thermostability and wafer-holding materials on optical loss in GaAs annealing JOURNAL OF APPLIED PHYSICS Wu, Y. S., Feigelson, R. S., Route, R. K., Zheng, D., Gordon, L. A., Fejer, M. M., Byer, R. L. 1998; 83 (10): 5552-5554

  View details for Web of Science ID 000073773600083

• Lateral patterning of nonlinear frequency conversion with transversely varying quasi-phase-matching gratings OPTICS LETTERS Imeshev, G., Proctor, M., Fejer, M. M. 1998; 23 (9): 673-675

  Abstract

  We demonstrate control of the nonlinear conversion across a beam profile by using periodically poled lithium niobate with a laterally nonuniform quasi-phase-matching grating. As a representative experiment, generation of a flat-top second-harmonic beam is demonstrated.

  View details for Web of Science ID 000073389800007

  View details for PubMedID 18087306

• Frequency stabilization of a diode laser at 1540 nm by locking to sub-Doppler lines of potassium at 770 nm APPLIED OPTICS Bruner, A., Arie, A., Arbore, M. A., Fejer, M. M. 1998; 37 (6): 1049-1052

  Abstract

  An external cavity 1540-nm diode laser was frequency doubled in a 3-cm-long periodically poled LiNbO(3) waveguide doubler with 150% W(-1) conversion efficiency, thereby generating more than 3 muW at 770 nm. Second-harmonic light was used to detect and lock to sub-Doppler lines of the (39)K D(1) transition.

  View details for Web of Science ID 000071926500013

  View details for PubMedID 18268684

• Visualization of inverted ferroelectric domains in LiNbO3 by X-ray topography JOURNAL OF APPLIED CRYSTALLOGRAPHY Rejmankova, P., Baruchel, J., Moretti, P., Arbore, M., Fejer, M., Foulon, G. 1998; 31: 106-108

  View details for Web of Science ID 000073564200017

• Phase correction in double-pass quasi-phase-matched second-harmonic generation with a wedged crystal OPTICS LETTERS Imeshev, G., Proctor, M., Fejer, M. M. 1998; 23 (3): 165-167

  Abstract

  Compensation for dispersive elements is necessary for efficient multiple-pass and intracavity nonlinear frequency-conversion devices. We describe the use of a wedged quasi-phase-matched crystal to compensate for the phase shifts introduced by mirrors in such devices, taking advantage of the periodic variation in the relative phases of the interacting waves in a quasi-phase-matching grating. A representative double-pass second-harmonic generation experiment with a 5-cm -long periodically poled lithium niobate crystal showed the expected conversion efficiency enhancement.

  View details for Web of Science ID 000071691100007

  View details for PubMedID 18084447

• High-energy femtosecond pulse amplification in a quasi-phase-matched parametric amplifier OPTICS LETTERS Galvanauskas, A., Hariharan, A., Harter, D., Arbore, M. A., Fejer, M. M. 1998; 23 (3): 210-212

  Abstract

  A new type of solid-state femtosecond amplifier is demonstrated that is based on quasi-phase-matched parametric amplification. Such gain media are different from conventional solid-state amplifiers in that their amplification bandwidths and pump and signal wavelengths can be engineered. Furthermore, high gain is characteristic of parametric amplification, permitting extraction of high energies without the need to resort to multiple-pass configurations. We report a parametric chirped pulse amplification system in which femtosecond pulses from a mode-locked Er-doped fiber laser system are amplified to 1-mJ energies in a single pass by use of a 5-mm-long periodically poled LiNbO(3) (PPLN) crystal. This amplifier is pumped by 5-mJ and 0.5-ns pulses at 786 nm, demonstrating that limitations associated with a low optical-damage threshold for long pump pulses can be overcome because of the high nonlinearity of PPLN and that relatively simple Q -switched lasers can be used with such parametric amplifiers.

  View details for Web of Science ID 000071691100022

  View details for PubMedID 18084462

• Continuous-wave 532-nm-pumped singly resonant optical parametric oscillator based on periodically poled lithium niobate OPTICS LETTERS Batchko, R. G., Weise, D. R., Plettner, T., Miller, G. D., Fejer, M. M., Byer, R. L. 1998; 23 (3): 168-170

  Abstract

  We report a continuous-wave (cw) 532-nm-pumped singly resonant optical parametric oscillator (SRO) based on periodically poled lithium niobate. The pump source is a commercial 5-W cw diode-pumped, multilongitudinal-mode, intracavity-doubled Nd:YVO(4) laser. Using a four-mirror ring SRO cavity and single-pass pumping, we achieved subwatt internal oscillation threshold, 56% quantum efficiency, and output tuning from 917 to 1266 nm.

  View details for Web of Science ID 000071691100008

  View details for PubMedID 18084448

• Improved GaAs bonding process for quasi-phase-matched second harmonic generation JOURNAL OF THE ELECTROCHEMICAL SOCIETY Wu, Y. S., Feigelson, R. S., Route, R. K., Zheng, D., Gordon, L. A., Fejer, M. M., Byer, R. L. 1998; 145 (1): 366-371

  View details for Web of Science ID 000071382900067

• In vitro bilirubin degradation by a light emitting diode (LED) device Journal of Investigative Medicine Vreman, H. J., Stevenson, D. K., Wong, R. J., Reader, S. D., Route, R. K., Fejer, M. M., Gale, R., Seidman, D. S. 1998; 46
• Low Optical Loss Wafer Bonded GaAs Structures for Quasi-Phase-Matched Second Harmonic Generation Materials Research Society Symposium Proceedings Wu, Y. C., Feigelson, R. S., Route, R. K., Zheng, D., Gordon, L. A., Fejer, M. M., Byer, R. L. 1998
• 42%-efficient single-pass cw second-harmonic generation in periodically poled lithium niobate OPTICS LETTERS Miller, G. D., Batchko, R. G., Tulloch, W. M., Weise, D. R., Fejer, M. M., Byer, R. L. 1997; 22 (24): 1834-1836

  Abstract

  We present a full-wafer fabrication process for periodically poled lithium niobate with a 6.5-mum domain period. Samples that were 53 mm long and 0.5 mm thick were obtained with this process for single-pass cw 1064-nm Nd:YAG second-harmonic generation. These samples exhibited 78% of the ideal nonlinear coefficient, had a measured conversion efficiency of 8.5% /W in the low-power limit, and produced 2.7 W of cw 532-nm output with 6.5 W of cw input, which corresponds to 42% power conversion efficiency.

  View details for Web of Science ID 000071030800002

  View details for PubMedID 18188379

• Balanced heterodyne signal extraction in a postmodulated Sagnac interferometer at low frequency OPTICS LETTERS Sun, K. X., Fejer, M. M., Gustafson, E. K., Byer, R. L. 1997; 22 (19): 1485-1487

  Abstract

  We describe a balanced-heterodyne postmodulated Sagnac interferometer signal extraction method that is suitable for gravitational wave detection. The method is simple to implement by placement of a polarization-selective modulator after the beam splitter in the dark port of the interferometer. The postmodulated Sagnac interferometer retains its common path advantage and exhibits insensitivity to laser frequency noise below, at, and above the heterodyne frequency. Balanced detection reduces sensitivity to laser amplitude noise. In this scheme mirror displacement signals were rf demodulated and observed from 0.2 to 10kHz.

  View details for Web of Science ID A1997XZ06600013

  View details for PubMedID 18188276

• Broadly tunable mid-infrared femtosecond optical parametric oscillator using all-solid-state-pumped periodically poled lithium niobate OPTICS LETTERS Burr, K. C., Tang, C. L., Arbore, M. A., Fejer, M. M. 1997; 22 (19): 1458-1460

  Abstract

  We describe a high-repetition-rate femtosecond optical parametric oscillator (OPO) that was broadly tunable in the mid infrared. The all-solid-state-pumped OPO was based on quasi-phase matching in periodically poled lithium niobate. The idler was tunable from approximately 1.7 mum to beyond 5.4 mum, with maximum average power levels greater than 200 mW and more than 20 mW of average power at 5.4 mum. We used interferometric autocorrelation to characterize the mid-infrared idler pulses, which typically had durations of 125 fs. This OPO had a pumping threshold as low as 65 mW of average pump power, a maximum conversion efficiency of >35% into the near-infrared signal, a slope efficiency for the signal of approximately 60%, and a maximum pump depletion of more than 85%.

  View details for Web of Science ID A1997XZ06600004

  View details for PubMedID 18188267

• Amplitude squeezing by means of quasi-phase-matched second-harmonic generation in a lithium niobate waveguide OPTICS LETTERS Serkland, D. K., Kumar, P., Arbore, M. A., Fejer, M. M. 1997; 22 (19): 1497-1499

  Abstract

  We demonstrate that traveling-wave second-harmonic generation produces amplitude-squeezed light at both the fundamental and the harmonic frequencies. Quasi-phase-matched second-harmonic conversion efficiencies approaching 60% were obtained in a 26-mm-long single-mode LiNbO(3) waveguide with pulses from a mode-locked laser at 1.53 microm. The amplitude noise of the transmitted fundamental field was measured to be 0.8 dB below the shot-noise level, and the generated 0.765-microm harmonic light was measured to be amplitude squeezed by 0.35 dB. The conversion-efficiency dependence of the observed squeezing at both wavelengths agrees with theoretical predictions. Waveguide losses appear to degrade the squeezing, but the maximum observed squeezing is currently limited only by the available input power.

  View details for Web of Science ID A1997XZ06600017

  View details for PubMedID 18188280

• Engineerable compression of ultrashort pulses by use of second-harmonic generation in chirped-period-poled lithium niobate OPTICS LETTERS Arbore, M. A., Galvanauskas, A., Harter, D., Chou, M. H., Fejer, M. M. 1997; 22 (17): 1341-1343

  Abstract

  We demonstrate the use of an aperiodic quasi-phase-matching (QPM) grating to generate second-harmonic pulses that are stretched or compressed relative to input pulses at the fundamental frequency. We frequency doubled an externally chirped erbium-doped fiber laser generating 17-ps (FWHM) pulses at 1560nm to produce near-transform-limited 110-fs (FWHM) pulses at 780nm by use of a 5-cm-long lithium niobate crystal poled with a QPM grating chirped from an 18.2- to a 19.8-microm period.

  View details for Web of Science ID A1997XU42500021

  View details for PubMedID 18188233

• Estimation of thermal noise in the mirrors of laser interferometric gravitational wave detectors: Two point correlation function REVIEW OF SCIENTIFIC INSTRUMENTS Nakagawa, N., Auld, B. A., Gustafson, E., Fejer, M. M. 1997; 68 (9): 3553-3556

  View details for Web of Science ID A1997XX25700040

• Polarization-based balanced heterodyne detection method in a Sagnac interferometer for precision phase measurement OPTICS LETTERS Sun, K. X., Gustafson, E. K., Fejer, M. M., Byer, R. L. 1997; 22 (17): 1359-1361

  Abstract

  We describe a balanced heterodyne detection method for a Sagnac interferometer that uses a polarization-dependent beam splitter. The signal and the local oscillator are orthogonally polarized components of a single laser beam, permitting the detection of the signal by subtraction of two photocurrents produced in appropriate polarization projections. Using this scheme, we experimentally demonstrate a phase measurement with a sensitivity of 9x10(-10) rad/ radicalHz. The measurement is robust in the presence of laser frequency noise, as a result of preserving the common-path nature of the Sagnac interferometer, and of laser-amplitude noise, as a result of balanced detection.

  View details for Web of Science ID A1997XU42500027

  View details for PubMedID 18188239

• Tunable ultraviolet radiation by second-harmonic generation in periodically poled lithium tantalate OPTICS LETTERS Meyn, J. P., Fejer, M. M. 1997; 22 (16): 1214-1216

  Abstract

  We describe electric-field poling of fine-pitch ferroelectric domain gratings in lithium tantalate and characterization of nonlinear-optical properties by single-pass quasi-phase-matched second-harmonic generation (QPM SHG). With a 7.5-microm-period grating, the observed effective nonlinear coefficient for first-order QPM SHG of 532-nm radiation is 9 pm/V, whereas for a grating with a 2.625-microm period, 2.6 pm/V was observed for second-order QPM SHG of 325-nm radiation. These values are 100% and 55% of the theoretically expected values, respectively. We derive a temperature-dependent Sellmeier equation for lithium tantalate that is valid deeper into the UV than currently available results, based on temperature-tuning experiments at different QPM grating periods combined with refractive-index data in the literature.

  View details for Web of Science ID A1997XP16700004

  View details for PubMedID 18185798

• High intensity illumination effects in LiNbO3 and KTiOPO4 waveguides JOURNAL OF APPLIED PHYSICS Eger, D., Arbore, M. A., Fejer, M. M., BORTZ, M. L. 1997; 82 (3): 998-1005

  View details for Web of Science ID A1997XP10600007

• Direct atomic flux measurement of electron-beam evaporated yttrium with a diode-laser-based atomic absorption monitor at 668 nm APPLIED PHYSICS LETTERS Wang, W. Z., Hammond, R. H., Fejer, M. M., Arnason, S., Beasley, M. R., BORTZ, M. L., Day, T. 1997; 71 (1): 31-33

  View details for Web of Science ID A1997XJ13900011

• Photovoltaic spatial solitons JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Segev, M., Valley, G. C., Bashaw, M. C., Taya, M., Fejer, M. M. 1997; 14 (7): 1772-1781

  View details for Web of Science ID A1997XL99900033

• High-repetition-rate femtosecond optical parametric oscillator based on periodically poled lithium niobate APPLIED PHYSICS LETTERS Burr, K. C., Tang, C. L., Arbore, M. A., Fejer, M. M. 1997; 70 (25): 3341-3343

  View details for Web of Science ID A1997XH23100005

• Pulse compression during second-harmonic generation in aperiodic quasi-phase-matching gratings OPTICS LETTERS Arbore, M. A., Marco, O., Fejer, M. M. 1997; 22 (12): 865-867

  Abstract

  We propose a simple means for compressing optical pulses with second-harmonic generation. Aperiodic quasi-phase-matching gratings impart a frequency-dependent phase shift on the second-harmonic pulse relative to the fundamental pulse and can be engineered to correct for arbitrary phase distortions. The mechanism is discussed, and a detailed analysis of the compression of quadratic phase (linear frequency) chirped pulses is presented.

  View details for Web of Science ID A1997XE10700007

  View details for PubMedID 18185688

• Precise measurement of methane in air using diode-pumped 3.4-mu m difference-frequency generation in PPLN APPLIED PHYSICS B-LASERS AND OPTICS Petrov, K. P., Waltman, S., Dlugokencky, E. J., Arbore, M., Fejer, M. M., Tittel, F. K., Hollberg, L. W. 1997; 64 (5): 567-572

  View details for Web of Science ID A1997XB49400010

• Near-infrared wavelength intersubband transitions in high indium content InGaAs/AlAs quantum wells grown on GaAs ELECTRONICS LETTERS Sung, B., Chui, H. C., Fejer, M. M., Harris, J. S. 1997; 33 (9): 818-820

  View details for Web of Science ID A1997WX45900063

• Diffusion bonding of GaAs wafers for nonlinear optics applications JOURNAL OF THE ELECTROCHEMICAL SOCIETY Zheng, D., Gordon, L. A., Wu, Y. S., Route, R. K., Fejer, M. M., Byer, R. L., Feigelson, R. S. 1997; 144 (4): 1439-1441

  View details for Web of Science ID A1997WX09000061

• Singly resonant optical parametric oscillation in periodically poled lithium niobate waveguides OPTICS LETTERS Arbore, M. A., Fejer, M. M. 1997; 22 (3): 151-153

  Abstract

  We report quasi-phase-matched singly resonant optical parametric oscillation in electric-field-poled lithium niobate waveguides. Parametric gains as high as 250%/W, an oscillation threshold of 1.6 W (peak), idler output powers of 220 mW, and a tuning range of 1180-2080 nm for pump wavelengths of 756-772 nm have been observed. Pump depletion is limited to 40% because of the multiple launched transverse modes at the pump wavelength. We predict that fully optimized waveguide singly resonant oscillators can have thresholds of ~100 mW, accessible to cw diode pumping.

  View details for Web of Science ID A1997WE37600005

  View details for PubMedID 18183132

• Fiber-laser-based femtosecond parametric generator in bulk periodically poled LiNbO3 OPTICS LETTERS Galvanauskas, A., Arbore, M. A., Fejer, M. M., Fermann, M. E., Harter, D. 1997; 22 (2): 105-107

  Abstract

  A diode-pumped system for optical parametric generation of wavelength-tunable femtosecond pulses is demonstrated. It comprises an Er-doped fiber mode-locked laser, a fiber chirped-pulse amplifier, and a bulk periodically poled LiNbO(3) (PPLN) optical parametric generator. The parametric generator is pumped at 777 nm with frequency-doubled microjoule pulses from the fiber amplifier and produces 300-fs pulses tunable from 1 to 3microm with output energies up to ~200 nJ. Use of a PPLN nonlinear crystal substantially reduces the pump energies required for efficient parametric generation. Saturated single-pass parametric energy conversion of 38% (internal) has been achieved with only 220 nJ of pump inside the crystal. A parametric generation threshold of 54 nJ is observed, and efficient parametric conversion is obtained with repetition rates up to 200 kHz.

  View details for Web of Science ID A1997WD12800013

  View details for PubMedID 18183117

• Modeling of efficient mode matching and thermal-lensing effect on a laser-beam coupling into a mode-cleaner cavity Conference on Modeling and Simulation of Higher-Power Laser Systems IV Uehara, N., Gustafson, E. K., Fejer, M. M., Byer, R. L. SPIE-INT SOC OPTICAL ENGINEERING. 1997: 57–68

  View details for Web of Science ID A1997BH79W00006

• 532 nm-Pumped Continuous-Wave Single Resonant Optical Parametric Oscillator Based on Periodically-Poled Lithium Niobate Advanced Solid State Lasers Batchko, R. G., Weise, D. R., Plettner, T., Miller, G. D., Fejer, M. M., Byer, R. L. The Optical Society. 1997
• Frequency doubling of femtosecond erbium-fiber soliton lasers in periodically poled lithium niobate OPTICS LETTERS Arbore, M. A., Fejer, M. M., Fermann, M. E., Hariharan, A., Galvanauskas, A., Harter, D. 1997; 22 (1): 13-15

  Abstract

  We report efficient frequency doubling of passively mode-locked femtosecond erbium-fiber lasers. Quasi-phase-matched second-harmonic generation in periodically poled lithium niobate is used to generate 8.1 mW of 190-fs (FWHM), 90-pJ pulses at 777 nm with a conversion efficiency greater than can be obtained with existing birefringently phase-matched nonlinear materials. A dispersion-compensation-free soliton oscillator generating transform-limited 230-fs (FWHM) pulses at 1554 nm is used as a pump laser.

  View details for Web of Science ID A1997WC67400005

  View details for PubMedID 18183087

• Absolute frequency stabilization of a 1.56 mu m laser by locking to sub-Doppler lines of Rb at 0.78 mu m 10th Meeting on Optical Engineering in Israel Mahal, V., Bruner, A., Kiryuschev, I., Arie, A., Arbore, M. A., Fejer, M. M. SPIE - INT SOC OPTICAL ENGINEERING. 1997: 339–343

  View details for Web of Science ID A1997BJ74X00040

• Quasi-phase-matched frequency doubling in a waveguide of a 1560-nm diode laser and locking to the rubidium D-2 absorption lines OPTICS LETTERS Mahal, V., Arie, A., Arbore, M. A., Fejer, M. M. 1996; 21 (16): 1217-1219

  Abstract

  An external-cavity 1560-nm diode laser was frequency doubled in a 3-cm-long periodically poled LiNbO(3) waveguide doubler with 120% W(-1) conversion efficiency. The 780-nm light was used to detect the D(2) transitions of Rb, and the laser frequency was locked to Doppler-broadened lines of Rb. Furthermore, the ~1 microW of second-harmonic power was sufficient for detecting the sub-Doppler lines of Rb, and the laser was locked to a (87)Rb crossover line.

  View details for Web of Science ID A1996VA99700005

  View details for PubMedID 19876304

• Y junctions arising from dark-soliton propagation in photovoltaic media OPTICS LETTERS Taya, M., Bashaw, M. C., Fejer, M. M., Segev, M., Valley, G. C. 1996; 21 (13): 943-945

  Abstract

  We report the observation of planar Y-junction waveguide splitters that are due to the bulk photovoltaic effect. The junctions are generated by multiple dark-soliton propagation in LiNbO(3) by use of low power levels (20 mW) and average intensities of 10 W/cm(2) at 488 nm. The junctions persist in the dark and can be used to divide input beams of less photorefractive sensitivity. We describe some possibilities for generating other waveguide structures in bulk and thin-film media.

  View details for Web of Science ID A1996UU28400011

  View details for PubMedID 19876212

• Photorefractive effects in periodically poled ferroelectrics OPTICS LETTERS Taya, M., Bashaw, M. C., Fejer, M. M. 1996; 21 (12): 857-859

  Abstract

  A quantitative analysis of the steady-state photorefractive index perturbations caused by a given optical irradiance distribution in a periodically poled ferroelectric is presented. Axially invariant index perturbations that are due to the photogalvanic effect are reduced compared with those in a homogeneously poled crystal by approximately the square of the product of the poling-grating wave vector (K(g)) and a characteristic transverse dimension of the irradiance. This result is consistent with empirical observations in periodically poled LiNbO(3) of much higher resistance to photorefractive damage.

  View details for Web of Science ID A1996UP08500007

  View details for PubMedID 19876182

• Adiabatically tapered periodic segmentation of channel waveguides for mode-size transformation and fundamental mode excitation OPTICS LETTERS Chou, M. H., Arbore, M. A., Fejer, M. M. 1996; 21 (11): 794-796

  Abstract

  We report modeling, fabrication, and characterization of tapered waveguides, using periodically segmented annealed proton exchange in LiNbO(3). For a taper transforming the 1/e full width (intensity) mode size from 6.0 microm x 4.4 microm to 2.0 microm x 1.3 microm, 0.4-dB excess loss was observed. The large, slightly elliptical mode can ease coupling to single-mode fibers and circular free-space beams. The same taper structure was used to excite a highly multimoded (13 modes) waveguide with more than 95% of the power stably launched into the lowest-order mode. This function is useful for nonlinear waveguide devices, such as difference-frequency generators, in which modes at highly disparate wavelengths interact.

  View details for Web of Science ID A1996UM40100010

  View details for PubMedID 19876161

• Investigation of increased photorefractive damage resistance in LiNbO3 by two-wave mixing-measurements JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS Furukawa, Y., Sato, M., Bashaw, M. C., Fejer, M. M., Iyi, N., Kitamura, K. 1996; 35 (5A): 2740-2744

  View details for Web of Science ID A1996UQ20700040

• Sagnac interferometer for gravitational-wave detection PHYSICAL REVIEW LETTERS Sun, K. X., Fejer, M. M., Gustafson, E., Byer, R. L. 1996; 76 (17): 3053-3056

  View details for Web of Science ID A1996UF74400003

• Symmetry of the magneto-optic response of the Sagnac interferometer 40th Annual Conference on Magnetism and Magnetic Materials Dodge, J. S., Klein, L., Fejer, M. M., Kapitulnik, A. AMER INST PHYSICS. 1996: 6186–88

  View details for Web of Science ID A1996UG87800217

• Multigrating quasi-phase-matched optical parametric oscillator in periodically poled LiNbO3 OPTICS LETTERS Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L., Bosenberg, W. R. 1996; 21 (8): 591-593

  Abstract

  We report a widely tunable quasi-phase-matched optical parametric oscillator that uses periodically poled LiNbO(3)with a multigrating structure. The device is tuned by translation of the crystal through the resonator and pump beam, with no realignment needed. With a 1.064-microm acousto-optically Q-switched Nd:YAG pumplaser, we produced noncritically phase-matched tunable IR output from 1.36 to 4.83 microm. The threshold was 6 microJ for a 26-mm interaction length. The extraordinary polarization of LiNbO(3) has better IR transmission than does the ordinary polarization, permitting operation at longer wavelengths with d(33) quasi-phase matching than with conventional Type I birefringent phase matching.

  View details for Web of Science ID A1996UE61700015

  View details for PubMedID 19876093

• Atomic absorption monitor for deposition process control of aluminum at 394 nm using frequency-doubled diode laser APPLIED PHYSICS LETTERS Wang, W. Z., Fejer, M. M., Hammond, R. H., Beasley, M. R., Ahn, C. H., BORTZ, M. L., Day, T. 1996; 68 (6): 729-731

  View details for Web of Science ID A1996TT66300001

• Broadly tunable mid-IR radiation source based on difference frequency mixing of high power wavelength-tunable laser diodes in bulk periodically poled LiNbO3 ELECTRONICS LETTERS Sanders, S., Lang, R. J., Myers, L. E., Fejer, M. M., Byer, R. L. 1996; 32 (3): 218-219

  View details for Web of Science ID A1996UL76800054

• Visible quasi-phasematched harmonic generation by electric-field-poled lithium niobate Conference on Nonlinear Frequency Conversion - Materials, Devices, and Applications Miller, G. D., Batchko, R. G., Fejer, M. M., Bver, R. L. SPIE - INT SOC OPTICAL ENGINEERING. 1996: 34–45

  View details for Web of Science ID A1996BF87D00005

• Demonstration of a vapor density monitoring system using UV radiation generated from quasi-phasematched SHG waveguide devices Conference on Nonlinear Frequency Conversion - Materials, Devices, and Applications Galanti, S. A., Berzins, L. V., Brown, J. B., Tamosaitis, R. S., BORTZ, M. L., Day, T., Fejer, M. M., Wang, W. SPIE - INT SOC OPTICAL ENGINEERING. 1996: 334–347

  View details for Web of Science ID A1996BF87D00037

• CW Single-Resonant Optical Parametric Oscillators Based on 1.064-mu m-Pumped Periodically Poled LiNbO3 The Optical Society Proceedings on Advanced Solid State Lasers Myers, L. E., Bosenberg, W. R., Alexander, J. I., Arbore, M. A., Fejer, M. M., Byer, R. L. 1996
• Progress in quasi-phasematched optical parametric: Oscillators using periodically poled LiNbO3 Conference on Nonlinear Frequency Conversion - Materials, Devices, and Applications Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L., Bosenberg, W. R. SPIE - INT SOC OPTICAL ENGINEERING. 1996: 216–226

  View details for Web of Science ID A1996BF87D00026

• Diffusion bonding of GaAs wafers for nonlinear optics applications 24th State-of-the-Art Program on Compound Semiconductors (SOTAPOCS XXIV), at the 189th Meeting of the Electrochemical-Society Zheng, D., Gordon, L. A., Eckardt, R. C., Fejer, M. M., Byer, R. L. ELECTROCHEMICAL SOCIETY INC. 1996: 175–80

  View details for Web of Science ID A1996BJ91N00019

• Fiber Laser Pumped Femtosecond Optical Parametric Generator Ultrafast Phenomena X Galvanauskas, A., Arbore, M. A., Fejer, M. M., Fermann, M. E., Harter, D. edited by Barbara, P. F., Fujimoto, J. G., Knox, W. H., Zinth, W. Springer. 1996
• QUASI-PHASE-MATCHED OPTICAL PARAMETRIC OSCILLATORS IN BULK PERIODICALLY POLED LINBO3 JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L., Bosenberg, W. R., Pierce, J. W. 1995; 12 (11): 2102-2116

  View details for Web of Science ID A1995TD95600012

• CW DIODE-PUMPED OPTICAL PARAMETRIC OSCILLATOR IN BULK PERIODICALLY POLED LINBO3 ELECTRONICS LETTERS Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L., Pierce, J. W. 1995; 31 (21): 1869-1870

  View details for Web of Science ID A1995TA92000053

• OBSERVATION OF DARK PHOTOVOLTAIC SPATIAL SOLITONS PHYSICAL REVIEW A Taya, M., Bashaw, M. C., Fejer, M. M., Segev, M., Valley, G. C. 1995; 52 (4): 3095-3100

  View details for Web of Science ID A1995TA42400077

• DIODE-LASER-BASED ATOMIC-ABSORPTION MONITOR USING FREQUENCY-MODULATION SPECTROSCOPY FOR PHYSICAL VAPOR-DEPOSITION PROCESS-CONTROL APPLIED PHYSICS LETTERS Wang, W. Z., Hammond, R. H., Fejer, M. M., Ahn, C. H., Beasley, M. R., Levenson, M. D., BORTZ, M. L. 1995; 67 (10): 1375-1377

  View details for Web of Science ID A1995RR44000012

• PR3+-DOPED FLUORIDE GLASSES JOURNAL OF NON-CRYSTALLINE SOLIDS Seeber, W., DOWNING, E. A., Hesselink, L., Fejer, M. M., Ehrt, D. 1995; 189 (3): 218-226

  View details for Web of Science ID A1995RT87100003

• SQUEEZING IN A QUASI-PHASE-MATCHED LINBO3 WAVE-GUIDE OPTICS LETTERS Serkland, D. K., Fejer, M. M., Byer, R. L., Yamamoto, Y. 1995; 20 (15): 1649-1651

  Abstract

  We report traveling-wave quadrature squeezing at 1064 nm in a quasi-phase-matched LiNbO(3) waveguide, avoiding the gain-induced diffraction encountered in bulk squeezing experiments. The 10-mm-long singlemode waveguide parametric amplifier exhibited a gain of 1.9, averaged over the 20-ps mode-locked pulses, with only 0.5 W of peak pump power at 532 nm. Independent waveguides were employed for the degenerate parametric amplifier squeezer and for the second-harmonic generator that produced the pump for the parametric amplifier. We measured phase-sensitive amplification versus pump power and found close agreement with theory. The observed 14% squeezing correlates closely with the predicted value, based on the measured phase-sensitive amplification and 40% overall detection efficiency. Impedance-matched electrically resonant detection was used to boost our squeezing measurement signals substantially above the background level.

  View details for Web of Science ID A1995RM76000021

  View details for PubMedID 19862112

• TUNABLE MIDINFRARED GENERATION BY DIFFERENCE-FREQUENCY MIXING OF DIODE-LASER WAVELENGTHS IN INTERSUBBAND INGAAS/ALAS QUANTUM-WELLS APPLIED PHYSICS LETTERS Chui, H. C., Woods, G. L., Fejer, M. M., MARTINET, E. L., Harris, J. S. 1995; 66 (3): 265-267

  View details for Web of Science ID A1995QC06000005

• QUASI-PHASEMATCHED OPTICAL PARAMETRIC OSCILLATORS USING BULK PERIODICALLY POLED LINBO3 Conference on Solid State Lasers and Nonlinear Crystals, at Photonics West 95 Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L. SPIE-INT SOC OPTICAL ENGINEERING. 1995: 154–162

  View details for Web of Science ID A1995BC94Z00021

• QUASI-PHASE-MATCHED OPTICAL PARAMETRIC AMPLIFICATION AND OSCILLATION IN PERIODICALLY POLED LINBO3 WAVE-GUIDES OPTICS LETTERS BORTZ, M. L., Arbore, M. A., Fejer, M. M. 1995; 20 (1): 49-51

  Abstract

  We report quasi-phase-matched optical parametric amplification and oscillation in a periodically poled LiNbO(3) waveguide. Single-pass parametric gains of 4.1 dB, corresponding to 18%/W efficiency, were achieved at a signal wavelength of 1.55 microm with a pump wavelength of 782.2 nm. We formed a low-finesse cavity resonant at both signal and idler wavelengths by attaching mirrors to the waveguide end faces. Parametric oscillation was observed at wavelengths between 1.4 and 1.7 microm with a peak output power of 700 mW for pump wavelengths between 779 and 782 nm.

  View details for Web of Science ID A1995QA38900017

  View details for PubMedID 19855793

• Quasi-phase-matched 1.064-microm-pumped optical parametric oscillator in bulk periodically poled LiNbO(3). Optics letters Myers, L. E., Miller, G. D., Eckardt, R. C., Fejer, M. M., Byer, R. L., Bosenberg, W. R. 1995; 20 (1): 52-54

  Abstract

  We report a quasi-phase-matched optical parametric oscillator, using bulk periodically poled LiNbO(3). The optical parametric oscillator, pumped by a 1.064-microm Q-switched Nd:YAG laser, was temperature tuned over the wavelength range 1.66-2.95 microm. The oscillation threshold of approximately 0.1 mJ was more than a factor of 10 below the damage limit. The LiNbO(3) crystal, fabricated by application of an electric field to a sample with liquid and metal surface electrodes, was 0.5 mm thick with a 5.2-mm interaction length and a quasi-phase-matched period of 31 microm.

  View details for PubMedID 19855794

• Long Pulse Optical Paramaetric Oscillator based on Bulk Periodically-Poled LiNbO3 The Optical Society Proceedings on Advanced Solid-State Lasers Bosenberg, W. R., Drobshoff, A., Gerstenberger, D. C., Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L. 1995
• CW Diode-Pumped Optical Parametric Oscillator in Bulk Periodically Poled LiNbO3 The Optical Society Proceedings on Advanced Solid-State Lasers Myers, L. E., Eckardt, R. C., Fejer, M. M., Byer, R. L., Pierce, J. W., Beausoleil, R. G. 1995
• Quasi-Phasematched Optical Parametric Oscillators in Periodically Poled LiNbO3 Optics and Photonics News Myers, L. E., Bortz, M. L., Arbore, M. A., Eckardt, R. C., Fejer, M. M., Byer, R. L. 1995; 6 (12)
• DARK AND BRIGHT PHOTOVOLTAIC SPATIAL SOLITONS PHYSICAL REVIEW A Valley, G. C., Segev, M., Crosignani, B., Yariv, A., Fejer, M. M., Bashaw, M. C. 1994; 50 (6): R4457-R4460

  View details for Web of Science ID A1994PX17900005

• SHORT-WAVELENGTH (5.36-1.85-MU-M) NONLINEAR SPECTROSCOPY OF COUPLED INGAAS/ALAS INTERSUBBAND QUANTUM-WELLS APPLIED PHYSICS LETTERS MARTINET, E. L., Chui, H. C., Woods, G. L., Fejer, M. M., Harris, J. S., RELLA, C. A., Richman, B. A., Schwettman, H. A. 1994; 65 (21): 2630-2632

  View details for Web of Science ID A1994PT87200002

• STUDY OF KTIOPO4 GRAY-TRACKING AT 1064-NM, 32-NM, AND 355-NM APPLIED PHYSICS LETTERS Boulanger, B., Fejer, M. M., BLACHMAN, R., Bordui, P. F. 1994; 65 (19): 2401-2403

  View details for Web of Science ID A1994PQ17400009

• DOUBLY RESONANT 2ND-HARMONIC GENERATION OF 2.0 MU-M LIGHT IN COUPLED INGAAS ALAS QUANTUM-WELLS APPLIED PHYSICS LETTERS Chui, H. C., MARTINET, E. L., Woods, G. L., Fejer, M. M., Harris, J. S., RELLA, C. A., RICHMAN, B. I., Schwettman, H. A. 1994; 64 (25): 3365-3367

  View details for Web of Science ID A1994NT35300001

• GROWTH OF ALTERNATING (100)/(111)-ORIENTED II-VI REGIONS FOR QUASI-PHASE-MATCHED NONLINEAR-OPTICAL DEVICES ON GAAS SUBSTRATES APPLIED PHYSICS LETTERS ANGELL, M. J., Emerson, R. M., Hoyt, J. L., Gibbons, J. F., Eyres, L. A., BORTZ, M. L., Fejer, M. M. 1994; 64 (23): 3107-3109

  View details for Web of Science ID A1994NP75200015

• HIGH-RESOLUTION MAGNETOOPTIC MEASUREMENTS WITH A SAGNAC INTERFEROMETER 38th Annual Conference on Magnetism and Magnetic Materials (MMM 93) Kapitulnik, A., Dodge, J. S., Fejer, M. M. AMER INST PHYSICS. 1994: 6872–77

  View details for Web of Science ID A1994NN73600259

• NONLINEAR-OPTICAL FREQUENCY-CONVERSION PHYSICS TODAY Fejer, M. M. 1994; 47 (5): 25-32

  View details for Web of Science ID A1994NL63500011

• LASER-INDUCED PHOTOCHROMIC DAMAGE IN POTASSIUM TITANYL PHOSPHATE APPLIED PHYSICS LETTERS BLACHMAN, R., Bordui, P. F., Fejer, M. M. 1994; 64 (11): 1318-1320

  View details for Web of Science ID A1994NA49600002

• DUAL-BEAM ATOMIC-ABSORPTION SPECTROSCOPY FOR CONTROLLING THIN-FILM DEPOSITION RATES 13th North American Conference on Molecular-Beam Epitaxy BENEROFE, S. J., Ahn, C. H., Wang, M. M., Kihlstrom, K. E., DO, K. B., Arnason, S. B., Fejer, M. M., Geballe, T. H., Beasley, M. R., Hammond, R. H. A V S AMER INST PHYSICS. 1994: 1217–20

  View details for Web of Science ID A1994NG71100153

• SHORT-WAVELENGTH INTERSUBBAND TRANSITIONS IN INGAAS/ALGAAS QUANTUM-WELLS GROWN ON GAAS APPLIED PHYSICS LETTERS Chui, H. C., MARTINET, E. L., Fejer, M. M., Harris, J. S. 1994; 64 (6): 736-738

  View details for Web of Science ID A1994MV50100023

• INCREASED ACCEPTANCE BANDWIDTH FOR QUASI-PHASEMATCHED 2ND-HARMONIC GENERATION IN LINBO(3) WAVE-GUIDES ELECTRONICS LETTERS BORTZ, M. L., Fujimura, M., Fejer, M. M. 1994; 30 (1): 34-35

  View details for Web of Science ID A1994MT57700025

• FREE-ELECTRON LASER NONLINEAR SPECTROSCOPY OF DOUBLY RESONANT (5.5-3.0 MU-M AND 4.1-2.1 MU-M) INGAAS/ALGAAS ASYMMETRIC QUANTUM-WELLS Conference on Quantum Well and Superlattice Physics V MARTINET, E. L., Woods, G. L., Chui, H. C., Harris, J. S., Fejer, M. M., RELLA, C. A., Richman, B. A. SPIE - INT SOC OPTICAL ENGINEERING. 1994: 331–3141

  View details for Web of Science ID A1994BA44G00034

• Tuning Bandwidth Enhancement in Waveguide Optical Second Harmonic Generation Device using Phase-Reversed Quasi-Phasematching Gratings Transactions of the Institute of Electronics, Information and Communication Engineers Fujimura, M., Bortz, M. L., Fejer, M. M., Suhara, T., Nishihara, H. 1994; J77 (10)
• Noncritical Quasi-Phasematched Second Harmonic Generation in an Annealed Proton-Exchanged LiNbO3 Waveguide IEEE Journal of Quantum Electonics Bortz, M. L., Field, S. J., Fejer, M. M., Nam, D., Waarts, R., Welch, D. 1994; 30 (12)
• FREQUENCY STABILIZATION AND HIGH-RESOLUTION SPECTROSCOPY USING FREQUENCY-DOUBLED ND-YAG LASERS 11th International Conference on Laser Spectroscopy Arie, A., BORTZ, M. L., Fejer, M. M., Byer, R. L. AIP PRESS. 1994: 305–7

  View details for Web of Science ID A1994BA06J00065

• APPLICATIONS OF HIGH INDIUM CONTENT INGAAS/ALGAAS QUANTUM WELLS IN THE 2-7 mu M REGIME NATO Advanced Research Workshop on Quantum Well Intersubband Transition Physics and Devices MARTINET, E. L., Vartanian, B. J., Woods, G. L., Chui, H. C., Harris, J. S., Fejer, M. M., Richman, B. A., RELLA, C. A. KLUWER ACADEMIC PUBL. 1994: 261–273

  View details for Web of Science ID A1994BC02U00021

• LARGE ENERGY INTERSUBBAND TRANSITIONS IN HIGH INDIUM CONTENT INGAAS/ALGAAS QUANTUM WELLS NATO Advanced Research Workshop on Quantum Well Intersubband Transition Physics and Devices Chui, H. C., MARTINET, E. L., Fejer, M. M., Harris, J. S. KLUWER ACADEMIC PUBL. 1994: 251–259

  View details for Web of Science ID A1994BC02U00020

• SURFACE-EMITTING 2ND-HARMONIC GENERATION IN A SEMICONDUCTOR VERTICAL RESONATOR OPTICS LETTERS Lodenkamper, R., BORTZ, M. L., Fejer, M. M., Bacher, K., Harris, J. S. 1993; 18 (21): 1798-1800

  Abstract

  We experimentally demonstrate a 240-fold increase in the efficiency of an AlGaAs/ALAs surface-emitting second-harmonic generation device by embedding the waveguide core in a monolithic vertical resonant cavity. Calculations indicate that conversion efficiencies of several percent per watt for second-harmonic generation of green or blue light may be expected in an optimized semiconductor resonant vertical-cavity surface emitter.

  View details for Web of Science ID A1993MC89700010

  View details for PubMedID 19829408

• DIFFUSION-BONDED STACKED GAAS FOR QUASI-PHASE-MATCHED 2ND-HARMONIC GENERATION OF A CARBON-DIOXIDE LASER ELECTRONICS LETTERS Gordon, L., Woods, G. L., Eckardt, R. C., ROUTE, R. R., Feigelson, R. S., Fejer, M. M., Byer, R. L. 1993; 29 (22): 1942-1944

  View details for Web of Science ID A1993NE96800027

• IODINE SPECTROSCOPY AND ABSOLUTE FREQUENCY STABILIZATION WITH THE 2ND-HARMONIC OF THE 1319-NM ND-YAG LASER OPTICS LETTERS Arie, A., BORTZ, M. L., Fejer, M. M., Byer, R. L. 1993; 18 (20): 1757-1759

  Abstract

  We have frequency doubled a 1319-nm Nd:YAG laser in a quasi-phase-matched LiNbO(3) waveguide and used the asymptotically equal to1-mW second-harmonic output to investigate the (127)I(2) transitions near 660 nm. We reached submegahertz laser-frequency stability at a (vacuum) wavelength of 1319.098 nm by locking the second harmonic to the center of the P(48)6-6 transition.

  View details for Web of Science ID A1993MA88600023

  View details for PubMedID 19823508

• INTERSUBBAND TRANSITIONS IN HIGH INDIUM CONTENT INGAAS/ALGAAS QUANTUM-WELLS APPLIED PHYSICS LETTERS Chui, H. C., Lord, S. M., Martinet, E., Fejer, M. M., Harris, J. S. 1993; 63 (3): 364-366

  View details for Web of Science ID A1993LN23800031

• DEPTH PROFILING OF THE D33 NONLINEAR COEFFICIENT IN ANNEALED PROTON EXCHANGED LINBO3 WAVE-GUIDES APPLIED PHYSICS LETTERS BORTZ, M. L., Eyres, L. A., Fejer, M. M. 1993; 62 (17): 2012-2014

  View details for Web of Science ID A1993KY86400004

• ANISOTROPIC DIELECTRIC WAVE-GUIDES JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Lu, M., Fejer, M. M. 1993; 10 (2): 246-261

  View details for Web of Science ID A1993KK05500006

• INORGANIC CRYSTALS FOR NONLINEAR-OPTICAL FREQUENCY-CONVERSION ANNUAL REVIEW OF MATERIALS SCIENCE Bordui, P. F., Fejer, M. M. 1993; 23: 321-379

  View details for Web of Science ID A1993LQ76400012

• QUASI-PHASE-MATCHED 2ND HARMONIC-GENERATION - TUNING AND TOLERANCES IEEE JOURNAL OF QUANTUM ELECTRONICS Fejer, M. M., Magel, G. A., Jundt, D. H., Byer, R. L. 1992; 28 (11): 2631-2654

  View details for Web of Science ID A1992JU29000014

• COMPOSITION DEPENDENCE OF LITHIUM DIFFUSIVITY IN LITHIUM-NIOBATE AT HIGH-TEMPERATURE JOURNAL OF APPLIED PHYSICS Jundt, D. H., Fejer, M. M., Norwood, R. G., Bordui, P. F. 1992; 72 (8): 3468-3473

  View details for Web of Science ID A1992JT98600033

• FABRICATION, CHARACTERIZATION AND INDEX PROFILE MODELING OF HIGH-DAMAGE RESISTANCE ZN-DIFFUSED WAVE-GUIDES IN CONGRUENT AND MGO - LITHIUM-NIOBATE JOURNAL OF LIGHTWAVE TECHNOLOGY Young, W. M., Fejer, M. M., Digonnet, M. J., Marshall, A. F., Feigelson, R. S. 1992; 10 (9): 1238-1246

  View details for Web of Science ID A1992JQ25200010

• MEASUREMENT OF THE SPONTANEOUS POLAR KERR EFFECT IN YBA2CU3O7 AND BI2SR2CACU2O8 PHYSICAL REVIEW LETTERS Spielman, S., Dodge, J. S., Lombardo, L. W., Eom, C. B., Fejer, M. M., Geballe, T. H., Kapitulnik, A. 1992; 68 (23): 3472-3475

  View details for Web of Science ID A1992HX41300026

• MEASUREMENT OF THE 2ND-ORDER NONLINEAR SUSCEPTIBILITY OF PROTON-EXCHANGED LINBO3 OPTICS LETTERS BORTZ, M. L., Fejer, M. M. 1992; 17 (10): 704-706

  Abstract

  We have measured the d(33) nonlinear coefficient in proton-exchanged LiNbO(3) by using angle-dependent reflected second-harmonic generation and observed a reduction to

  View details for Web of Science ID A1992HT34400002

  View details for PubMedID 19794603

• FUSED-SILICA MONOLITHIC TOTAL-INTERNAL-REFLECTION RESONATOR OPTICS LETTERS Schiller, S., Yu, I. I., Fejer, M. M., Byer, R. L. 1992; 17 (5): 378-380

  View details for Web of Science ID A1992HF12800024

  View details for PubMedID 19784334

• TEST FOR NONRECIPROCAL CIRCULAR BIREFRINGENCE IN BI2SR2CACU2O8 PHYSICAL REVIEW B Spielman, S., Dodge, J. S., FESLER, K., Lombardo, L. W., Fejer, M. M., Geballe, T. H., Kapitulnik, A. 1992; 45 (6): 3149-3151

  View details for Web of Science ID A1992HD25800071

• PREPARATION AND CHARACTERIZATION OF OFF-CONGRUENT LITHIUM-NIOBATE CRYSTALS JOURNAL OF APPLIED PHYSICS Bordui, P. F., Norwood, R. G., Jundt, D. H., Fejer, M. M. 1992; 71 (2): 875-879

  View details for Web of Science ID A1992HA64500053

• NONLINEAR FREQUENCY-CONVERSION IN PERIODICALLY-POLED FERROELECTRIC WAVE-GUIDES NATO ADVANCED STUDY INST ON GUIDED WAVE NONLINEAR OPTICS Fejer, M. M. KLUWER ACADEMIC PUBL. 1992: 133–145

  View details for Web of Science ID A1992BW28K00009

• ANNEALED PROTON-EXCHANGED LINBO3 WAVE-GUIDES OPTICS LETTERS BORTZ, M. L., Fejer, M. M. 1991; 16 (23): 1844-1846

  Abstract

  We report characterization of annealed proton-exchanged waveguides in LiNbO(3). Effective-mode indices and fundamental-mode intensity profiles were measured for a variety of fabrication conditions. Index profile, depth, and surface refractive-index change were determined versus exchange depth and anneal time and are presented in a universal form. An empirical concentration-dependent diffusion model describing the annealing process is presented. The refractive-index dispersion in proton-exchanged and annealed proton-exchanged waveguides was determined for wavelengths between 0.4 and 1.1 microm.

  View details for Web of Science ID A1991GT34700012

  View details for PubMedID 19784157

• 69% Efficient continuous-wave second-harmonic generation in lithium-rich lithium niobate. Optics letters Jundt, D. H., Fejer, M. M., Byer, R. L., Norwood, R. G., Bordui, P. F. 1991; 16 (23): 1856-1858

  Abstract

  Lithium-rich lithium niobate fabricated by vapor transport equilibration is used to frequency double the output of an injection-locked Nd:YAG laser. Internal doubling efficiencies as high as 69% and powers of as much as 1.6 W are achieved by resonant external cavity second-harmonic generation. No evidence of photorefractive damage is observed at the operating temperature of 234 degrees C.

  View details for PubMedID 19784161

• INFRARED RADIATION GENERATED BY QUASI-PHASE-MATCHED DIFFERENCE-FREQUENCY MIXING IN A PERIODICALLY POLED LITHIUM-NIOBATE WAVE-GUIDE APPLIED PHYSICS LETTERS Lim, E. J., Hertz, H. M., BORTZ, M. L., Fejer, M. M. 1991; 59 (18): 2207-2209

  View details for Web of Science ID A1991GM04000001

• QUASIPHASE-MATCHED 2ND HARMONIC-GENERATION OF BLUE-LIGHT IN ELECTRICALLY PERIODICALLY-POLED LITHIUM TANTALATE WAVE-GUIDES ELECTRONICS LETTERS Matsumoto, S., Lim, E. J., Hertz, H. M., Fejer, M. M. 1991; 27 (22): 2040-2042

  View details for Web of Science ID A1991GN17800029

• SURFACE EMITTING 2ND HARMONIC-GENERATION IN VERTICAL RESONATOR ELECTRONICS LETTERS Lodenkamper, R., Fejer, M. M., Harris, J. S. 1991; 27 (20): 1882-1884

  View details for Web of Science ID A1991GH96000058

• PHOTOREFRACTIVE-DAMAGE-RESISTANT ZN-DIFFUSED WAVE-GUIDES IN MGO-LINBO3 OPTICS LETTERS Young, W. M., Feigelson, R. S., Fejer, M. M., Digonnet, M. J., Shaw, H. J. 1991; 16 (13): 995-997

  Abstract

  Planar waveguides were fabricated by diffusing Zn into MgO:LiNbO(3) and LiNbO(3). Zn-diffused waveguides in MgO:LiNbO(3) guide both the ordinary and extraordinary polarization and have propagation losses at 633 nm in the range of 0.4-1.2 dB/cm. Single-beam-induced in-plane scattering due to photorefractive damage was not observed at 515 nm up to intensities of as much as 90 kW/cm(2).

  View details for Web of Science ID A1991FU16000007

  View details for PubMedID 19776854

• INFLUENCE OF COMPOSITION OF MGO-DOPED LITHIUM-NIOBATE ON PHASE-MATCHING TEMPERATURE FOR FREQUENCY DOUBLING IN THE VISIBLE JOURNAL OF APPLIED PHYSICS Young, W. M., Feigelson, R. S., Jundt, D. H., Fejer, M. M. 1991; 69 (10): 7372-7374

  View details for Web of Science ID A1991FM77100095

• 2ND-ORDER SUSCEPTIBILITY IN ASYMMETRIC QUANTUM-WELLS AND ITS CONTROL BY PROTON-BOMBARDMENT APPLIED PHYSICS LETTERS Yoo, S. J., Fejer, M. M., Byer, R. L., Harris, J. S. 1991; 58 (16): 1724-1726

  View details for Web of Science ID A1991FH09700011

• CURIE-TEMPERATURE MEASUREMENTS ON KTIOPO4 SINGLE-CRYSTALS GROWN BY FLUX AND HYDROTHERMAL TECHNIQUES FERROELECTRICS Bordui, P. F., Norwood, R. G., Fejer, M. M. 1991; 115 (1-3): 7-12

  View details for Web of Science ID A1991FN26800002

• Periodically Poled Lithium Niobate for High Efficiency Second-Harmonic Generation Applied Physics Letters Jundt, D. H., Magel, G. A., Fejer, M. M., Byer, R. L. 1991; 59 (21)
• Measurements of Nonreciprocal Optical Effects on Magnetic and Superconducting Materials using a Fiber-Optic Gyroscope Journal of Applied Physics Speilman, S., Fesler, K., Eom, C. B., Geballe, T. H., Fejer, M. M., Kapitulnik, A. 1991; 69 (8)
• Time Reversal Symmetry Breaking in Biological Molecules Physical Phenomena at High Magnetic Fields Proceedings Doniach, S., Kapitulnik, A., Frank, P., Fejer, M. M., Spielman, S., Dodge, J. S. 1991
• QUASI-PHASEMATCHED FREQUENCY-CONVERSION IN LITHIUM-NIOBATE AND LITHIUM TANTALATE WAVE-GUIDES CONF ON INORGANIC CRYSTALS FOR OPTICS, ELECTRO-OPTICS, AND FREQUENCY CONVERSION Lim, E. J., Matsumoto, S., BORTZ, M. L., Fejer, M. M. SPIE - INT SOC OPTICAL ENGINEERING. 1991: 135–142

  View details for Web of Science ID A1991BV30U00015

• NONCRITICAL PHASE MATCHING FOR GUIDED-WAVE FREQUENCY-CONVERSION APPLIED PHYSICS LETTERS Lim, E. J., Matsumoto, S., Fejer, M. M. 1990; 57 (22): 2294-2296

  View details for Web of Science ID A1990EK41100004

• TEST FOR NONRECIPROCAL CIRCULAR BIREFRINGENCE IN YBA2CU3O7 THIN-FILMS AS EVIDENCE FOR BROKEN TIME-REVERSAL SYMMETRY PHYSICAL REVIEW LETTERS Spielman, S., FESLER, K., Eom, C. B., Geballe, T. H., Fejer, M. M., Kapitulnik, A. 1990; 65 (1): 123-126

  View details for Web of Science ID A1990DL89100032

• UNIFORM REFRACTIVE-INDEX CLADDING FOR LINBO3 SINGLE-CRYSTAL FIBERS APPLIED PHYSICS LETTERS Sudo, S., Yokohama, I., CORDOVAPLAZA, A., Fejer, M. M., Byer, R. L. 1990; 56 (20): 1931-1933

  View details for Web of Science ID A1990DC93500001

• QUASI-PHASE-MATCHED 2ND-HARMONIC GENERATION OF BLUE-LIGHT IN PERIODICALLY POLED LINBO3 APPLIED PHYSICS LETTERS Magel, G. A., Fejer, M. M., Byer, R. L. 1990; 56 (2): 108-110

  View details for Web of Science ID A1990CH19700003

• OPTICAL-PROPERTIES OF LITHIUM-RICH LITHIUM-NIOBATE FABRICATED BY VAPOR TRANSPORT EQUILIBRATION IEEE JOURNAL OF QUANTUM ELECTRONICS Jundt, D. H., Fejer, M. M., Byer, R. L. 1990; 26 (1): 135-138

  View details for Web of Science ID A1990CM10500018

• QUASI-PHASE-MATCHED INTERACTIONS IN LITHIUM-NIOBATE CONF ON NONLINEAR OPTICAL PROPERTIES OF MATERIALS Fejer, M. M., Magel, G. A., Lim, E. J. SPIE - INT SOC OPTICAL ENGINEERING. 1990: 213–224

  View details for Web of Science ID A1990BQ37J00024

• GROWTH OF OPTICAL-QUALITY SAPPHIRE SINGLE-CRYSTAL FIBERS 2ND SYMP ON OPTICAL FIBER MATERIALS AND PROCESSING Jundt, D. H., Fejer, M. M., Byer, R. L. MATERIALS RESEARCH SOC. 1990: 273–278

  View details for Web of Science ID A1990BR34P00037

• Quantum Wells and Artificially Structured Materials for Nonlinear Optics SPIE Proceedings on Physical Concepts of Materials for Novel Optoelectronic Device Applications Harris, Jr., J. S., Fejer, M. M. 1990
• CHARACTERIZATION OF SINGLE-CRYSTAL SAPPHIRE FIBERS FOR OPTICAL POWER DELIVERY SYSTEMS APPLIED PHYSICS LETTERS Jundt, D. H., Fejer, M. M., Byer, R. L. 1989; 55 (21): 2170-2172

  View details for Web of Science ID A1989CA40100004

• 30 HZ-LINEWIDTH, DIODE-LASER-PUMPED, ND-GGG NONPLANAR RING OSCILLATORS BY ACTIVE FREQUENCY STABILIZATION ELECTRONICS LETTERS Day, T., Nilsson, A. C., Fejer, M. M., FARINAS, A. D., Gustafson, E. K., NABORS, C. D., Byer, R. L. 1989; 25 (13): 810-812

  View details for Web of Science ID A1989AD62200002

• BLUE-LIGHT GENERATION BY FREQUENCY DOUBLING IN PERIODICALLY POLED LITHIUM-NIOBATE CHANNEL WAVE-GUIDE ELECTRONICS LETTERS Lim, E. J., Fejer, M. M., Byer, R. L., Kozlovsky, W. J. 1989; 25 (11): 731-732

  View details for Web of Science ID A1989AA39800033

• OBSERVATION OF EXTREMELY LARGE QUADRATIC SUSCEPTIBILITY AT 9.6-10.8-MU-M IN ELECTRIC-FIELD-BIASED ALGAAS QUANTUM WELLS PHYSICAL REVIEW LETTERS Fejer, M. M., Yoo, S. J., Byer, R. L., Harwit, A., Harris, J. S. 1989; 62 (9): 1041-1044

  View details for Web of Science ID A1989T371600016

• 2ND-HARMONIC GENERATION OF GREEN LIGHT IN PERIODICALLY POLED PLANAR LITHIUM-NIOBATE WAVE-GUIDE ELECTRONICS LETTERS Lim, E. J., Fejer, M. M., Byer, R. L. 1989; 25 (3): 174-175

  View details for Web of Science ID A1989T234500002

• Growth and Optical Properties of Single-Crystal Sapphire Fibers SPIE Proceedings on Infrared Fiber Optics Jundt, D. H., Fejer, M. M., Byer, R. L. 1989
• Second Harmonic Generation in Periodically-Poled Lithium Nobate Optics News Magel, G. A., Lim, E. J., Fejer, M. M., Byer, R. L. 1989; 15
• STOICHIOMETRIC LINBO3 SINGLE-CRYSTAL FIBERS FOR NONLINEAR OPTICAL APPLICATIONS JOURNAL OF CRYSTAL GROWTH LUH, Y. S., Fejer, M. M., Byer, R. L., Feigelson, R. S. 1987; 85 (1-2): 264-269

  View details for Web of Science ID A1987L041200038

• Recent Developments in Nonlinear Optical Materials Laser Spectroscopy Eckardt, R. C., Fan, Y. X., Fejer, M. M., Kozlovsky, W. J., Nabors, C. D., Byer, R. L., Route, R. K., Feigelson, R. S. 1987; VIII
• FERROELECTRIC DOMAIN-STRUCTURES IN LINBO3 SINGLE-CRYSTAL FIBERS JOURNAL OF CRYSTAL GROWTH LUH, Y. S., Feigelson, R. S., Fejer, M. M., Byer, R. L. 1986; 78 (1): 135-143

  View details for Web of Science ID A1986E625000018

• GENERATION OF 22 MW OF 532-NM RADIATION BY FREQUENCY DOUBLING IN TI-MGO-LINBO3 WAVE-GUIDES OPTICS LETTERS Fejer, M. M., Digonnet, M. J., Byer, R. L. 1986; 11 (4): 230-232

  View details for Web of Science ID A1986A700100014

  View details for PubMedID 19730589

• Low-Loss Single-Crystal Sapphire Optical Fibers SPIE Proceedings on Infrared Optical Materials and Fibers Magel, G. A., Jundt, D. H., Fejer, M. M., Byer, R. L. 1986
• SINGLE-CRYSTAL FIBER APPLICATIONS INCLUDE NONLINEAR OPTICAL EFFECTS LASER FOCUS-ELECTRO-OPTICS Fejer, M., Nightingale, J., Magel, G., Byer, R. 1985; 21 (10): 60-?

  View details for Web of Science ID A1985AST5800011

• CHARACTERIZATION OF PROTON-EXCHANGED WAVE-GUIDES IN MGO-LINBO3 OPTICS LETTERS Digonnet, M., Fejer, M., Byer, R. 1985; 10 (5): 235-237

  Abstract

  We report the fabrication and characterization of proton-exchanged waveguides in MgO-doped LiNbO(3), a high-optical-damage-threshold material. Results indicate waveguide characteristics similar to those of waveguides fabricated in undoped LiNbO(3) except for slower diffusion rates and freedom from etching of the y face when pure benzoic acid is used as a proton source. An optical-damage threshold of 70 kW/cm(2) was measured at 0.5145 microm in a MgO:LiNbO(3) waveguide, corresponding to a factor-of-2 improvement over undoped LiNbO(3).

  View details for Web of Science ID A1985AGA8900014

  View details for PubMedID 19724405

• HIGH-SPEED HIGH-RESOLUTION FIBER DIAMETER VARIATION MEASUREMENT SYSTEM APPLIED OPTICS Fejer, M. M., Magel, G. A., Byer, R. L. 1985; 24 (15): 2362-2368

  Abstract

  A fiber diameter variation measurement system is described which is capable of measuring transparent fibers with 0.02% diameter resolution and 6-microm axial resolution at a measurement rate of 1 kHz and with a working distance of >100 mm. The principles of its operation are discussed in detail, and experimental confirmation of its performance is reported. A theoretical calculation of the optimum obtainable diameter resolution for a given set of experimental parameters is also presented.

  View details for Web of Science ID A1985AMV8800023

  View details for PubMedID 18223891

• Nonlinear Optics in Single Crystal Fibers Tunable Solid State Lasers for Remote Sensing Fejer, M. M., Nightingale, J., Magel, G., Kozlovsky, W., Fan, T. Y., Byer, R. L. edited by Byer, R. L., Gustafson, E. K., Trebino, R. Springer-Verlag. 1985
• LASER-HEATED MINIATURE PEDESTAL GROWTH APPARATUS FOR SINGLE-CRYSTAL OPTICAL FIBERS REVIEW OF SCIENTIFIC INSTRUMENTS Fejer, M. M., NIGHTINGALE, J. L., Magel, G. A., Byer, R. L. 1984; 55 (11): 1791-1796

  View details for Web of Science ID A1984TV30900013

• LASER ASSISTED GROWTH OF OPTICAL-QUALITY SINGLE-CRYSTAL FIBERS PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS Fejer, M. M., NIGHTINGALE, J. L., Magel, G. A., Byer, R. L. 1984; 460: 26-32

  View details for Web of Science ID A1984TP29300005

• NON-LINEAR ELASTICITY IN PROPER FERROELASTICS PHYSICAL REVIEW B Toledano, P., Fejer, M. M., Auld, B. A. 1983; 27 (9): 5717-5746

  View details for Web of Science ID A1983QQ76800054

• GROWTH AND CHARACTERIZATION OF SINGLE-CRYSTAL REFRACTORY OXIDE FIBERS PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS Fejer, M., Byer, R. L., FEIGELSON, R., KWAY, W. 1982; 320: 50-55

  View details for Web of Science ID A1982PX15000009

• ELASTIC NONLINEARITY AND DOMAIN-WALL MOTION IN FERROELASTIC CRYSTALS FERROELECTRICS Auld, B. A., Fejer, M. M. 1981; 38 (1-4): 931-934

  View details for Web of Science ID A1981MW10600055