Bio


Joseph M. Kahn is a Professor of Electrical Engineering at Stanford University. His research addresses communication and imaging through optical fibers, including modulation, detection, signal processing and spatial multiplexing. He received A.B. and Ph.D. degrees in Physics from U.C. Berkeley in 1981 and 1986. From 1987-1990, he was at AT&T Bell Laboratories, Crawford Hill Laboratory, in Holmdel, NJ. He was on the Electrical Engineering faculty at U.C. Berkeley from 1990-2003. In 2000, he co-founded StrataLight Communications, which was acquired by Opnext, Inc. in 2009. He received the National Science Foundation Presidential Young Investigator Award in 1991 and is a Fellow of the IEEE.

Academic Appointments


Administrative Appointments


  • Chair, Academic Affairs Committee, Department of Electrical Engineering (2012 - Present)

Honors & Awards


  • Hoover Faculty Scholar, Stanford University (2003-2005)
  • Presidential Young Investigator, National Science Foundation (1991-1996)
  • Fellow, IEEE (2000)

Professional Education


  • PhD, University of California, Berkeley, Physics (1986)
  • MS, University of California, Berkeley, Physics (1983)
  • BA, University of California, Berkeley, Physics (1981)

Journal Articles


  • Linear Propagation Effects in Mode-Division Multiplexing Systems J. of Lightwave Technol. (Invited Paper). Ho, K., P., Kahn, J., M.
  • Coded Modulation for Fiber-Optic Networks IEEE Signal Processing Magazine. Beygi, L., Agrell, E., Kahn, J., M.
  • MIMO Signal Processing for Mode-Division Multiplexing IEEE Signal Processing Magazine (Invited Paper). Arık, S., Ö., Kahn, J., M., Ho, K., P.
  • Rate-Adaptive Coded Modulation for Fiber-Optic Communications J.of Lightwave Technol. Beygi, L., Agrell, E., Kahn, J., M. 2014; 32 (2): 333-343
  • Optical Networking with Variable-Code-Rate Transceivers J. of Lightwave Technol. Mello, D., A. A., Barreto, A., N., Lima, T., C., Portela, T., F., Beygi, L., Kahn, J., M. 2014; 32 (2): 257-266
  • Coupled-Core Multi-Core Fibers for Spatial Multiplexing IEEE PHOTONICS TECHNOLOGY LETTERS Arik, S. O., Kahn, J. M. 2013; 25 (21): 2054-2057
  • Sequential Optimization of Adaptive Arrays in Coherent Laser Communications JOURNAL OF LIGHTWAVE TECHNOLOGY Belmonte, A., Kahn, J. M. 2013; 31 (9): 1383-1387
  • Effect of Mode Coupling on Signal Processing Complexity in Mode-Division Multiplexing JOURNAL OF LIGHTWAVE TECHNOLOGY Arik, S. O., Askarov, D., Kahn, J. M. 2013; 31 (3): 423-431
  • Resolution limits for imaging through multi-mode fiber OPTICS EXPRESS Mahalati, R. N., Gu, R. Y., Kahn, J. M. 2013; 21 (2): 1656-1668

    Abstract

    We experimentally demonstrate endoscopic imaging through a multi-mode fiber (MMF) in which the number of resolvable image features approaches four times the number of spatial modes per polarization propagating in the fiber. In our method, a sequence of random field patterns is input to the fiber, generating a sequence of random intensity patterns at the output, which are used to sample an object. Reflected power values are returned through the fiber and linear optimization is used to reconstruct an image. The factor-of-four resolution enhancement is due to mixing of modes by the squaring inherent in field-to-intensity conversion. The incoherent point-spread function (PSF) at the center of the fiber output plane is an Airy disk equivalent to the coherent PSF of a conventional diffraction-limited imaging system having a numerical aperture twice that of the fiber. All previous methods for imaging through MMF can only resolve a number of features equal to the number of modes. Most of these methods use localized intensity patterns for sampling the object and use local image reconstruction.

    View details for Web of Science ID 000315989500034

    View details for PubMedID 23389151

  • Mode-Division Multiplexing Systems: Propagation Effects, Performance and Complexity 2013 OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE (OFC/NFOEC) Kahn, J. M., Ho, K. 2013
  • The Time-Reversed Twin Nature Photonics Ip, E., Kahn, J., M. 2013; 7: 507-508
  • Four-Fold Resolution Increase in Scan-Free Single-Fiber Endoscopic Imaging SU2P Symposium, Glasgow Kahn, J., M. 2013
  • Design of Transmission Fibers and Doped Fiber Amplifiers for Mode-Division Multiplexing IEEE PHOTONICS TECHNOLOGY LETTERS Askarov, D., Kahn, J. M. 2012; 24 (21): 1945-1948
  • Delay-Spread Distribution for Multimode Fiber With Strong Mode Coupling IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K., Kahn, J. M. 2012; 24 (21): 1906-1909
  • Rate-Adaptive Modulation and Low-Density Parity-Check Coding for Optical Fiber Transmission Systems JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING Gho, G., Kahn, J. M. 2012; 4 (10): 760-768
  • Bandwidth-Scalable Long-Haul Transmission Using Synchronized Colorless Transceivers and Efficient Wavelength-Selective Switches JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M., Wilde, J. P., Abou Zeid, T. 2012; 30 (16): 2646-2660
  • Adaptive control of input field to achieve desired output intensity profile in multimode fiber with random mode coupling OPTICS EXPRESS Mahalati, R. N., Askarov, D., Wilde, J. P., Kahn, J. M. 2012; 20 (13): 14321-14337

    Abstract

    We develop a method for synthesis of a desired intensity profile at the output of a multimode fiber (MMF) with random mode coupling by controlling the input field distribution using a spatial light modulator (SLM) whose complex reflectance is piecewise constant over a set of disjoint blocks. Depending on the application, the desired intensity profile may be known or unknown a priori. We pose the problem as optimization of an objective function quantifying, and derive a theoretical lower bound on the achievable objective function. We present an adaptive sequential coordinate ascent (SCA) algorithm for controlling the SLM, which does not require characterizing the full transfer characteristic of the MMF, and which converges to near the lower bound after one pass over the SLM blocks. This algorithm is faster than optimizations based on genetic algorithms or random assignment of SLM phases. We present simulated and experimental results applying the algorithm to forming spots of light at a MMF output, and describe how the algorithm can be applied to imaging.

    View details for Web of Science ID 000305473000070

    View details for PubMedID 22714494

  • Rate-Adaptive Modulation and Coding for Optical Fiber Transmission Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Gho, G., Kahn, J. M. 2012; 30 (12): 1818-1828
  • Effect of fog on free-space optical links employing imaging receivers OPTICS EXPRESS Mahalati, R. N., Kahn, J. M. 2012; 20 (2): 1649-1661

    Abstract

    We analyze free-space optical links employing imaging receivers in the presence of misalignment and atmospheric effects, such as haze, fog or rain. We present a detailed propagation model based on the radiative transfer equation. We also compare the relative importance of two mechanisms by which these effects degrade link performance: signal attenuation and image blooming. We show that image blooming dominates over attenuation, except under medium-to-heavy fog conditions.

    View details for Web of Science ID 000300057700092

    View details for PubMedID 22274507

  • Mode Coupling in Coherent Mode-Division-Multiplexed Systems: Impact on Capacity and Signal Processing Complexity 2012 CONFERENCE RECORD OF THE FORTY SIXTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR) Kahn, J. M., Ho, K. 2012: 650-653
  • Comparison of Orthogonal Frequency-Division Multiplexing and Pulse-Amplitude Modulation in Indoor Optical Wireless Links IEEE TRANSACTIONS ON COMMUNICATIONS Barros, D. J., Wilson, S. K., Kahn, J. M. 2012; 60 (1): 153-163
  • Frequency Diversity in Mode-Division Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K., Kahn, J. M. 2011; 29 (24): 3719-3726
  • Statistics of Group Delays in Multimode Fiber With Strong Mode Coupling JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K., Kahn, J. M. 2011; 29 (21): 3119-3128
  • Field Conjugation Adaptive Arrays in Free-Space Coherent Laser Communications JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING Belmonte, A., Kahn, J. M. 2011; 3 (11): 830-838
  • Mode-dependent loss and gain: statistics and effect on mode-division multiplexing OPTICS EXPRESS Ho, K., Kahn, J. M. 2011; 19 (17): 16612-16635

    Abstract

    In multimode fiber transmission systems, mode-dependent loss and gain (collectively referred to as MDL) pose fundamental performance limitations. In the regime of strong mode coupling, the statistics of MDL (expressed in decibels or log power gain units) can be described by the eigenvalue distribution of zero-trace Gaussian unitary ensemble in the small-MDL region that is expected to be of interest for practical long-haul transmission. Information-theoretic channel capacities of mode-division-multiplexed systems in the presence of MDL are studied, including average and outage capacities, with and without channel state information.

    View details for Web of Science ID 000293894900099

    View details for PubMedID 21935025

  • Comparison of Orthogonal Frequency-Division Multiplexing and ON-OFF Keying in Direct-Detection Multimode Fiber Links JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2011; 29 (15): 2299-2309
  • Principal Modes in Graded-Index Multimode Fiber in Presence of Spatial- and Polarization-Mode Coupling (vol 27, pg 1248, 2009) JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Mao, W., Panicker, R. A., Kahn, J. M. 2011; 29 (12): 1901-1901
  • Experimental demonstration of two methods for controlling the group delay in a system with photonic-crystal resonators coupled to a waveguide OPTICS LETTERS Huo, Y., Sandhu, S., Pan, J., Stuhrmann, N., Povinelli, M. L., Kahn, J. M., Harris, J. S., Fejer, M. M., Fan, S. 2011; 36 (8): 1482-1484

    Abstract

    We measure the group delay in an on-chip photonic-crystal device with two resonators side coupled to a waveguide. We demonstrate that such a group delay can be controlled by tuning either the propagation phase of the waveguide or the frequency of the resonators.

    View details for Web of Science ID 000290034500059

    View details for PubMedID 21499397

  • Rate-Adaptive Coding for Optical Fiber Transmission Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Gho, G., Klak, L., Kahn, J. M. 2011; 29 (2): 222-233
  • Rate-adaptive modulation and coding for optical fiber transmission systems COHERENT OPTICAL COMMUNICATION: COMPONENTS, SUBSYSTEMS, AND SYSTEMS Gho, G., Kahn, J. M. 2011; 7960

    View details for DOI 10.1117/12.881421

    View details for Web of Science ID 000294061300007

  • Spot Formation and Scanning Microscopy via Multimode Fibers 2011 IEEE PHOTONICS CONFERENCE (PHO) Boucher, K. J., Jan, C., Kahn, J. M., Wilde, J. P., Solgaard, O. 2011: 713-714
  • Comparison of Multi-Carrier and Single-Carrier Intensity Modulation Techniques for Indoor Optical Wireless Links 2011 IEEE PHOTONICS CONFERENCE (PHO) Barros, D. J., Kahn, J. M., Wilson, S. K. 2011: 294-295
  • Adaptive Compensation of Multimode Fiber Dispersion by Control of Launched Amplitude, Phase, and Polarization JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Wilde, J. P., Kahn, J. M. 2010; 28 (18): 2627-2639
  • Capacity of coherent free-space optical links using diversity-combining techniques (vol 17, pg 12601, 2009) OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2010; 18 (17): 17748-17748
  • Compensation of Multimode Fiber Dispersion by Optimization of Launched Amplitude, Phase, and Polarization JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Kahn, J. M. 2010; 28 (14): 2084-2095
  • Comparison of Orthogonal Frequency-Division Multiplexing and On-Off Keying in Amplified Direct-Detection Single-Mode Fiber Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2010; 28 (12): 1811-1820
  • Hiding Single Photons with Spread Spectrum Technology PHYSICAL REVIEW LETTERS Belthangady, C., Chuu, C., Yu, I. A., Yin, G. Y., Kahn, J. M., Harris, S. E. 2010; 104 (22)

    Abstract

    We describe a proof-of-principal experiment demonstrating the use of spread spectrum technology at the single photon level. We show how single photons with a prescribed temporal shape, in the presence of interfering noise, may be hidden and recovered.

    View details for DOI 10.1103/PhysRevLett.104.223601

    View details for Web of Science ID 000278207500009

    View details for PubMedID 20867167

  • Fiber Impairment Compensation Using Coherent Detection and Digital Signal Processing JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E. M., Kahn, J. M. 2010; 28 (4): 502-519
  • Efficiency of complex modulation methods in coherent free-space optical links OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2010; 18 (4): 3928-3937

    Abstract

    We study the performance of various binary and nonbinary modulation methods applied to coherent laser communication through the turbulent atmosphere. We compare the spectral efficiencies and SNR efficiencies of complex modulations, and consider options for atmospheric compensation, including phase correction and diversity combining techniques. Our analysis shows that high communication rates require receivers with good sensitivity along with some technique to mitigate the effect of atmospheric fading.

    View details for Web of Science ID 000274795700077

    View details for PubMedID 20389405

  • OFDM vs. OOK with MLSD for IM/DD Systems 2010 CONFERENCE ON OPTICAL FIBER COMMUNICATION OFC COLLOCATED NATIONAL FIBER OPTIC ENGINEERS CONFERENCE OFC-NFOEC Barros, D. J., Kahn, J. M. 2010
  • Algorithms for Compensation of Multimode Fiber Dispersion Using Adaptive Optics JOURNAL OF LIGHTWAVE TECHNOLOGY Panicker, R. A., Kahn, J. M. 2009; 27 (24): 5790-5799
  • Experimental Comparison of Adaptive Optics Algorithms in 10-Gb/s Multimode Fiber Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Panicker, R. A., Lau, A. P., Wilde, J. P., Kahn, J. M. 2009; 27 (24): 5783-5789
  • Higher-Order Modal Dispersion in Graded-Index Multimode Fiber JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Kahn, J. M. 2009; 27 (23): 5461-5468
  • Capacity of coherent free-space optical links using diversity-combining techniques OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2009; 17 (15): 12601-12611

    Abstract

    We study the performance of diversity combining techniques applied to synchronous laser communication through the turbulent atmosphere. We assume that a single information-bearing signal is transmitted over two or more statistically independent fading channels, and that the multiple replicas are combined at the receiver to improve detection efficiency. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise. We study the effect of various parameters, including the ratio of receiver aperture diameter to wavefront coherence diameter, the scintillation index, and the number of independent diversity branches combined at the receiver. We consider both maximal-ratio combining (MRC) and selective combining (SC) diversity schemes. We derive expressions for the outage Shannon capacity, thus placing upper bounds on the spectral efficiency achievable using these techniques.

    View details for Web of Science ID 000268399500042

    View details for PubMedID 19654664

  • Feedforward Carrier Recovery for Coherent Optical Communications (vol25, pg 2675, 2007) JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2009; 27 (13): 2552-2553
  • Optical Modulator Optimization for Orthogonal Frequency-Division Multiplexing JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2009; 27 (13): 2370-2378
  • Principal Modes in Graded-Index Multimode Fiber in Presence of Spatial- and Polarization-Mode Coupling JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Mao, W., Panicker, R. A., Kahn, J. M. 2009; 27 (10): 1248-1261
  • Capacity of coherent free-space optical links using atmospheric compensation techniques OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2009; 17 (4): 2763-2773

    Abstract

    We analyze the ergodic capacity and epsilon-outage capacity of coherent optical links through the turbulent atmosphere. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise, for both passive receivers and those employing active modal compensation of wavefront phase distortion. We study the effect of various parameters, including the ratio of receiver aperture diameter to wavefront coherence diameter, the strength of the scintillation index, and the number of modes compensated.

    View details for Web of Science ID 000263432500071

    View details for PubMedID 19219181

  • Frequency Noise Characterization of a Widely Tunable Narrow-Linewidth DFB Laser Array Source OFC: 2009 CONFERENCE ON OPTICAL FIBER COMMUNICATION, VOLS 1-5 Wilde, J. P., Yoffe, G. W., Kahn, J. M. 2009: 348-350
  • Addendum to: Feedforward Carrier Recovery for Coherent Optical Communications J. of Lightwave Technol. Ip, E., Kahn, J., M. 2009; 27 (13): 2552-2553
  • Coherent detection in optical fiber systems (vol 16, pg 753, 2008) OPTICS EXPRESS Ip, E., Lau, A. P., Barros, D. J., Kahn, J. M. 2008; 16 (26): 21943-21943
  • Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2008; 26 (17-20): 3416-3425
  • Performance of synchronous optical receivers using atmospheric compensation techniques OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2008; 16 (18): 14151-14162

    Abstract

    We model the impact of atmospheric turbulence-induced phase and amplitude fluctuations on free-space optical links using synchronous detection. We derive exact expressions for the probability density function of the signal-to-noise ratio in the presence of turbulence. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise, for both passive receivers and those employing active modal compensation of wave-front phase distortion. We compute error probabilities for M-ary phase-shift keying, and evaluate the impact of various parameters, including the ratio of receiver aperture diameter to the wave-front coherence diameter, and the number of modes compensated.

    View details for Web of Science ID 000259270600068

    View details for PubMedID 18773024

  • Lattice codes for amplified direct-detection optical systems IEEE TRANSACTIONS ON COMMUNICATIONS Mao, W., Kahn, J. M. 2008; 56 (7): 1137-1145
  • Optimized Dispersion Compensation Using Orthogonal Frequency-Division Multiplexing JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2008; 26 (13-16): 2889-2898
  • Compensation of multimode fiber dispersion using adaptive optics via convex optimization JOURNAL OF LIGHTWAVE TECHNOLOGY Panicker, R. A., Kahn, J. M., Boyd, S. P. 2008; 26 (9-12): 1295-1303
  • Coherent detection in optical fiber systems OPTICS EXPRESS Ip, E., Lau, A. P., Barros, D. J., Kahn, J. M. 2008; 16 (2): 753-791

    Abstract

    The drive for higher performance in optical fiber systems has renewed interest in coherent detection. We review detection methods, including noncoherent, differentially coherent, and coherent detection, as well as a hybrid method. We compare modulation methods encoding information in various degrees of freedom (DOF). Polarization-multiplexed quadrature-amplitude modulation maximizes spectral efficiency and power efficiency, by utilizing all four available DOF, the two field quadratures in the two polarizations. Dual-polarization homodyne or heterodyne downconversion are linear processes that can fully recover the received signal field in these four DOF. When downconverted signals are sampled at the Nyquist rate, compensation of transmission impairments can be performed using digital signal processing (DSP). Linear impairments, including chromatic dispersion and polarization-mode dispersion, can be compensated quasi-exactly using finite impulse response filters. Some nonlinear impairments, such as intra-channel four-wave mixing and nonlinear phase noise, can be compensated partially. Carrier phase recovery can be performed using feedforward methods, even when phase-locked loops may fail due to delay constraints. DSP-based compensation enables a receiver to adapt to time-varying impairments, and facilitates use of advanced forward-error-correction codes. We discuss both single- and multi-carrier system implementations. For a given modulation format, using coherent detection, they offer fundamentally the same spectral efficiency and power efficiency, but may differ in practice, because of different impairments and implementation details. With anticipated advances in analog-to-digital converters and integrated circuit technology, DSP-based coherent receivers at bit rates up to 100 Gbit/s should become practical within the next few years.

    View details for Web of Science ID 000252479700030

    View details for PubMedID 18542153

  • QPSK Transmission over Free-Space Link at 3.8 mu m using Coherent Detection with Wavelength Conversion 2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) Ip, E., Buechter, D., Langrock, C., Kahn, J. M., Herrmann, H., Sohler, W., Fejer, M. M. 2008
  • Performance of Synchronous Receivers using Atmospheric Compensation Tech-niques Optics Express Belmonte, A., Kahn, J., M. 2008; 16 (18): 14151-14162
  • On the statistics of intra-channel four-wave mixing in phase-modulated systems 2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 Lau, A. P., Rabbani, S., Kahn, J. M. 2008: 154-156
  • Signal design and detection in presence of nonlinear phase noise JOURNAL OF LIGHTWAVE TECHNOLOGY Lau, A. P., Kahn, J. M. 2007; 25 (10): 3008-3016
  • Feedforward carrier recovery for coherent optical communications JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2007; 25 (9): 2675-2692
  • Digital equalization of chromatic dispersion and polarization mode dispersion JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2007; 25 (8): 2033-2043
  • 10 x 10 Gb/s DWDM transmission through 2.2-km multimode fiber using adaptive optics IEEE PHOTONICS TECHNOLOGY LETTERS Panicker, R. A., Wilde, J. P., Kahn, J. M., Welch, D. F., Lyubomirsky, I. 2007; 19 (13-16): 1154-1156
  • Advanced Modulation Formats and Digital Signal Processing in Optical Communications 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5 Kahn, J. M., Ip, E. 2007: 199-200
  • Spectral Efficiency Limits and How to Approach Them Panel Presentation at IEEE LEOS Summer Topical on Advanced Digital Signal Processing in Next-Generation Fiber-Optic Transmission, Portland, OR Kahn, J., M. 2007
  • 16-QAM signal design and detection in presence of nonlinear phase noise 2007 DIGEST OF THE LEOS SUMMER TOPICAL MEETINGS Lau, A. P., Kahn, J. M. 2007: 53-54
  • Power profile optimization in phase-modulated systems in presence of nonlinear phase noise IEEE PHOTONICS TECHNOLOGY LETTERS Lau, A. P., Kahn, J. M. 2006; 18 (21-24): 2514-2516
  • Design of inline amplifier gains and spacings to minimize the phase noise in optical transmission systems JOURNAL OF LIGHTWAVE TECHNOLOGY Lau, A. P., Kahn, J. M. 2006; 24 (3): 1334-1341
  • Power spectra of return-to-zero optical signals JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2006; 24 (3): 1610-1618
  • Scanning micromirrors fabricated by an SOI/SOI wafer-bonding process JOURNAL OF MICROELECTROMECHANICAL SYSTEMS Zhou, L. X., Kahn, J. M., Pister, K. S. 2006; 15 (1): 24-32
  • Carrier synchronization for 3-and 4-bit-per-symbol optical transmission JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2005; 23 (12): 4110-4124
  • Compensation for multimode fiber dispersion by adaptive optics OPTICS LETTERS Shen, X. L., Kahn, J. M., Horowitz, M. A. 2005; 30 (22): 2985-2987

    Abstract

    Adaptive optics is used to compensate for modal dispersion in digital transmission through multimode fiber (MMF). At the transmitter, a spatial light modulator (SLM) controls the launched field pattern. An estimate of intersymbol interference (ISI) caused by modal dispersion is formed at the receiver and fed back to the transmitter, where the SLM is adjusted to minimize ISI. Error-free transmission of 10 Gbit/s non-return-to-zero signals through standard 50 microm graded-index MMFs up to 11.1 km long is demonstrated. It is shown that a single SLM can compensate for modal dispersion across a 600 GHz bandwidth.

    View details for Web of Science ID 000233258800005

    View details for PubMedID 16315696

  • Linewidth measurements of MEMS-based tunable lasers for phase-locking applications IEEE PHOTONICS TECHNOLOGY LETTERS Ip, E., Kahn, J. M., Anthon, D., Hutchins, J. 2005; 17 (10): 2029-2031
  • Principal modes in multimode waveguides OPTICS LETTERS Fan, S. H., Kahn, J. M. 2005; 30 (2): 135-137

    Abstract

    We generalize the concept of principal states of polarization and prove the existence of principal modes in multimode waveguides. Principal modes do not suffer from modal dispersion to first order of frequency variation and form orthogonal bases at both the input and the output ends of the waveguide. We show that principal modes are generally different from eigenmodes, even in uniform waveguides, unlike the special case of a single-mode fiber with uniform birefringence. The difference is most pronounced when different eigenmodes possess similar group velocities and when their field patterns vary as a function of frequency. This work may provide a new basis for analysis and control of dispersion in multimode fiber systems.

    View details for Web of Science ID 000226218500007

    View details for PubMedID 15675691

  • Modulation and detection techniques for DWDM systems OPTICAL COMMUNICATION THEORY AND TECHNIQUES Kahn, J. M., Ho, K. P. 2005: 13-20
  • Accurate bit-error-ratio computation in nonlinear CRZ-OOK and CRZ-DPSK systems IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Kahn, J. M. 2004; 16 (9): 2165-2167
  • Conventional DPSK versus symmetrical DPSK: Comparison of dispersion tolerances IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Kahn, J. M. 2004; 16 (6): 1585-1587
  • Performance of electrical equalizers in optically amplified OOK and DPSK systems IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Kahn, J. M. 2004; 16 (5): 1397-1399
  • Spectral efficiency limits and modulation/detection techniques for DWDM systems IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS Kahn, J. M., Ho, K. P. 2004; 10 (2): 259-272
  • Electronic compensation technique to mitigate nonlinear phase noise JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K. P., Kahn, J. M. 2004; 22 (3): 779-783
  • Spectrum of externally modulated optical signals JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K. P., Kahn, J. M. 2004; 22 (2): 658-663
  • Impact of chromatic and polarization-mode dispersions on DPSK systems using interferometric demodulation and direct detection JOURNAL OF LIGHTWAVE TECHNOLOGY Wang, J., Kahn, J. M. 2004; 22 (2): 362-371
  • Free-space Heterochronous Imaging Reception of Multiple Optical Signals IEEE Trans. on Commun. Mao, W., Kahn, J., M. 2004; 52 (2): 269-279
  • Two-axis scanning mirror for free-space optical communication between UAVs 2003 IEEE/LEOS INTERNATIONAL CONFERENCE ON OPTICAL MEMS Zhou, L., Last, M., Milanovic, V., Kahn, J. M., Pister, K. S. 2003: 157-158
  • Queueing Models of Optical Delay Lines in Synchronous and Asynchronous Optical Packet-Switching Networks Optical Engineering Zhu, X., Kahn, J., M. 2003; 42 (6): 1741-1748
  • Mitigation of Turbulence-Induced Scintillation Noise in Free-Space Optical Links using Temporal-Domain Detection Techniques IEEE Photon. Technol. Lett. Zhu, X., Kahn, J., M., Wang, J. 2003; 15 (4): 623-625
  • Performance Bounds for Coded Free-Space Optical Communications through Atmo-spheric Turbulence Channels IEEE Trans. on Commun. Zhu, X., Kahn, J., M. 2003; 51 (8): 1233-1239
  • Markov Chain Model in Maximum-Likelihood Sequence Detection for Free-Space Opti-cal Communication through Atmospheric Turbulence Channels IEEE Trans. on Commun. Zhu, X., Kahn, J., M. 2003; 51 (3): 509-516
  • Minimization of Acquisition Time in Short-Range Free-Space Optical Com-munication Applied Optics Wang, J., Kahn, J., M., Lau, K., Y. 2002; 41 (12): 7592-7602
  • Ultimate Spectral Efficiency Limits in DWDM Systems Optical Fiber Commun. Conf. Kahn, J., M. 2002
  • Optical Modeling of MEMS Corner Cube Retroreflectors with Misalignment and Non-flatness IEEE. J. on Sel. Topics in Quantum Electron. Zhu, X., Hsu, V., S., Kahn, J., M. 2002; 8 (1): 26-32
  • Free-Space Optical Communication through Atmospheric Turbulence Channels IEEE Trans. on Commun. Zhu, X., Kahn, J., M. 2002; 50 (8): 1293-1300
  • Upper-Bounding the Capacity of Optical IM/DD Channels with Multiple-Subcarrier Modulation and Fixed Bias using Trigonometric Moment Space Method IEEE Trans. on Information Theory You, R., Kahn, J., M. 2002; 48: 514-523
  • Spectral Efficiency and Coherent Detection in Optical Communications Defense Sciences Research Council Workshop on Novel Applications of Optical Coherence, Arlington, VA Kahn, J., M. 2002
  • Capacity Scaling in MIMO Wireless Systems Under Corre-lated Fading IEEE Trans. on Information Theory Chuah, C., Tse, D., Kahn, J., M., Valenzuela, R., A. 2002; 48: 637-650
  • Average Power Reduction Techniques for Multiple-Subcarrier Intensity-Modulated Opti-cal Signals IEEE Trans. on Commun. You, R., Kahn, J., M. 2001; 49: 2164-2171
  • A Bottleneck for Optical Fibres Nature Kahn, J., M., Ho, K., P. 2001; 411: 1007-1010
  • Analysis of Infrared Wireless Links Employing Multi-Beam Transmitters and Imaging Diversity Receivers IEEE Trans. on Commun. Djahani, P., Kahn, J., M. 2000; 48 (12): 2077-2088
  • Angle Diversity for Nondirected Wireless Infrared Communication IEEE Trans. on Commun. Carruthers, J., B., Kahn, J., M. 2000; 48 (6): 960-969
  • Fading Correlation and its Effect on the Capacity of Multi-Ele-ment Antenna Systems IEEE Trans. on Commun. Shiu, D., Foschini, G., Gans, M., J., Kahn, J., M. 2000; 48: 502-513
  • Emerging Challenges: Mobile Networking for ‘Smart Dust J. of Com-mun. and Networks Kahn, J., M., Katz, R., H., Pister, K., S.J. 2000; 2 (3): 188-196
  • BER Performance of Turbo-Coded PPM CDMA Systems on Optical Fiber J. Lightwave Technol. Ohtsuki, T., Kahn, J., M. 2000; 18 (12): 1776-1784
  • Differential Pulse-Position Modulation for Power-Efficient Optical Communication IEEE Trans. on Commun. Shiu, D., Kahn, J., M. 1999; 47 (8): 1201-1210
  • Decision-Feedback Equalization of Pulse-Position Modulation on Measured Non-Directed Indoor Infrared Channels IEEE Trans. on Commun. Audeh, M., D., Kahn, J., M., Barry, J., R. 1999; 47: 500-503
  • Coding and Equalization for PPM on Wireless Infrared Channels IEEE Trans. on Commun. Lee, D., C., Kahn, J., M. 1999; 47 (2): 255-260
  • Shaping and Non-Equiprobable Signaling for Intensity-Modulated Signals IEEE Trans. on Information Theory Shiu, D., Kahn, J., M. 1999; 45: 2661-2668
  • Joint Design of Channel-Optimized Quantizer and Multicarrier Modulation IEEE Trans. on Commun. Ho, K., P., Kahn, J., M. 1998; 46 (10): 1254-1257
  • Imaging Diversity Receivers for High- Speed Infrared Wireless Communications IEEE Communications Magazine Kahn, J., M., Djahani, P., Weisbin, A., G., Beh, K., T., Tang, A., P., You, R. 1998; 36 (12): 88-94
  • Channel Reuse Strategies for Indoor Infrared Wireless Communications IEEE Trans. on Commun. Marsh, G., W., Kahn, J., M. 1997; 45 (10): 1280-1290
  • Image Transmission Over Noisy Channels Using Multicarrier Modulation Signal Processing: Image Communication Ho, K., P., Kahn, J., M. 1997; 9 (2): 159-169
  • Infrared Wireless Communications: Recent Results DIMACS (Center for Discrete Mathematics and Theoretical Computer Science) Workshop on Network Switching, Princeton, NJ Kahn, J., M. 1997
  • Modeling of Nondirected Wireless Infrared Channels IEEE Trans. on Com-mun. Carruthers, J., B., Kahn, J., M. 1997; 45 (10): 1260-1268
  • Effect of electronic-ballast fluorescent lighting on wireless infrared links IEE PROCEEDINGS-OPTOELECTRONICS Narasimhan, R., Audeh, M. D., Kahn, J. M. 1996; 143 (6): 347-354
  • Effect of electronic-ballast fluorescent lighting on wireless infrared links 1996 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - CONVERGING TECHNOLOGIES FOR TOMORROW'S APPLICATIONS, VOLS. 1-3 Narasimhan, R., Audeh, M. D., Kahn, J. M. 1996: 1213-1219
  • Transmission of Analog Signals using Multicarrier Modulation: a Combined Source- Channel Coding Approach IEEE Trans. on Commun. Ho, K., P., Kahn, J., M. 1996; 44 (11): 1432-1443
  • Multiple-Subcarrier Modulation for Non-Directed Wireless Infrared Communi-cation IEEE J. Sel. Areas in Commun. Carruthers, J., B., Kahn, J., M. 1996; 14: 538-546
  • Optimal Predistortion of Gaussian Inputs for Clipping Channels IEEE Trans. on Commun. Ho, K., P., Kahn, J., M. 1996; 44 (11): 1505-1513
  • On Models of Clipping Distortion for Lightwave CATV Systems IEEE Photon. Tech-nol. Lett. Ho, K., P., Kahn, J., M. 1996; 8 (1): 125-126
  • Performance Evaluation of Experimental 50-Mb/s Diffuse Infrared Wireless Link using On-Off Keying with Decision-Feedback Equalization IEEE Trans. on Commun. Marsh, G., W., Kahn, J., M. 1996; 44 (11): 1496- 1504
  • Methods for Crosstalk Measurement and Reduction in Dense WDM Systems J. Lightwave Technol. Ho, K., P., Kahn, J., M. 1996; 14: 1127-1135
  • PERFORMANCE EVALUATION OF BASEBAND OOK FOR WIRELESS INDOOR INFRARED LANS OPERATING AT 100 MB/S IEEE TRANSACTIONS ON COMMUNICATIONS Audeh, M. D., Kahn, J. M. 1995; 43 (6): 2085-2094
  • High-Speed Wireless Infrared Communications presented at 19th IEEE Computer Elements Work-shop, Vail, CO Kahn, J., M. 1995
  • Exact Probability Density Function for Phase-Measurement Interferometry J. Opt. Soc. Am. A Ho, K., P., Kahn, J., M. 1995; 12 (9): 1984-1989
  • Crosstalk Cancellation in Dense WDM Systems Using Filter-Bank Receiver Tech. Digest of Optical Fiber Commun. Conf. Ho, K., P., Kahn, J., M. 1995: 35-36
  • Link Design for Non-Directed Wireless Infrared Communications Applied Optics Barry, J., R., Kahn, J., M. 1995; 34 (19): 3764-3776
  • Experimental Characterization of Non-Directed Indoor Infrared Channels IEEE Trans. on Commun Kahn, J., M., Krause, W., J., Carruthers, J., B. 1995; 43: 1613-1623
  • Compound Parabolic Concentrators for Narrow-Band Wireless Infrared Receivers Optical Engineering Ho, K., P., Kahn, J., M. 1995; 34 (5): 1385-1395
  • PERFORMANCE EVALUATION OF L-PULSE-POSITION MODULATION ON NON-DIRECTED INDOOR INFRARED CHANNELS SERVING HUMANITY THROUGH COMMUNICATIONS, VOLS 1-3 Audeh, M. D., Kahn, J. M. 1994: 660-664
  • Non-Directed Infrared Links for High-Capacity Wireless LANs IEEE Pers. Commun. Mag. Kahn, J., M., Barry, J., R., Audeh, M., D., Carruthers, J., B., Krause, W., J. 1994; 1 (2): 12-25
  • 50-Mb/s Diffuse Infrared Free-Space Link Using On-Off Keying with Decision Feedback Equalization IEEE Photon. Technol. Lett. Marsh, G., W., Kahn, J., M. 1994; 6 (10): 1268-1270
  • Simulation of Multipath Impulse Response for Wireless Optical Channels IEEE J. Sel. Areas in Commun. Barry, J., R., Kahn, J., M., Krause, W., J., Lee, E., A. 1993; 11 (3): 367-379
  • Optical Frequency Comb Generator Using Phase Modulation in Amplified Circulating Loop IEEE Photon. Technol. Lett. Ho, K., P., Kahn, J., M. 1993; 5 (6): 721-725
  • Equalization Technique to Reduce Laser Clipping-Induced Distortion in Subcarrier-Multiplexed Lightwave Systems IEEE Photon. Technol. Lett. Ho, K., P., Kahn, J., M. 1993; 5 (9): 1100-1103
  • External Optical Feedback Effects on Intensity Noise of Vertical-Cavity Surface-Emitting Lasers IEEE Photon. Technol. Lett. Ho, K., P., Walker, J., D., Kahn, J., M. 1993; 5 (8): 892-895
  • Stabilization of Millimeter- Wave Frequencies from Passively Mode-Locked Semiconductor Lasers Using an Opto-Electronic Phase-Locked Loop IEEE Photon. Technol. Lett. Buckman, L., A., Georges, J., B., Park, J., Vassilovski, D., Kahn, J., M., Lau, K., Y. 1993; 5 (10): 1137-1140
  • Experimental Characterization of Multipath Free-Space Infrared Channels for Wireless In-Building Networks Tech. Digest of 19th Euro. Conf. on Opt. Commun. Kahn, J., M., Krause, W., J. 1993: 397-400
  • Heterodyne Detection of 310-Mb/s Quadriphase-Shift Keying Using Fourth-Power Optical Phase-Locked Loop Tech. Digest of Optical Fiber Commun. Conf. Porter, A., M., Kahn, J., M., Padan, U. 1993
  • Carrier Synchronization for Homodyne and Heterodyne Detection of Optical Quad-riphase-Shift Keying J. Lightwave Technol. Barry, J., R., Kahn, J., M. 1992; 10: 1939-1951
  • Fourth-Power Phased-Locked Loop for Heterodyne Detection of Optical Quadrature Phase-Shift Keying Tech. Digest of Optical Fiber Commun. Conf. Barry, J., R., Audeh, M., D., Porter, A., M. 1992: 292
  • Heterodyne Detection of 310-Mb/s Quadriphase-Shift Keying Using Fourth-Power Optical Phase-Locked Loop IEEE Photon. Technol. Lett. Kahn, J., M., Porter, A., M., Padan, U. 1992; 4: 1397-1400
  • Polarization Effects on Ultra-Long Distance Signal Transmission in Amplified Optical-Fiber Loops Tech. Digest of 17th Euro. Conf. on Opt. Commun. Giles, C., R., Kahn, J., M., Korotky, S., K., Veselka, J., J., Burrus, C., A., Perino, J., S. 1991: 385-388
  • High-Speed Nondirective Optical Communication for Wireless Networks IEEE Network Magazine Barry, J., R., Kahn, J., M., Lee, E., A. 1991: 44-54
  • Polarization Effects on Ultra-Long Distance Signal Transmission in Amplified Optical-Fiber Loops IEEE Photon. Technol. Lett. Giles, C., R., Kahn, J., M., Korotky, S., K., Veselka, J., J., Burrus, C., A., Perino, J., S. 1991; 3: 948-951
  • 4 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers ech. Digest of Postdeadline Papers, Optical Fiber Com-mun. Conf. Kahn, J., M., Gnauck, A., H., Veselka, J., J., Korotky, S., K., Kasper, B., L. 1990: PD10/1-PD10/4
  • Homodyne Detection of Phase-Shift-Keying for Multi-Gigabit Lightwave Transmission Tech. Digest of Optical Fiber Commun. Conf. Kahn, J., M. 1990: 211
  • 4 Gbit/s Heterodyne Transmission Experiments Using ASK, FSK, and DPSK Modulation IEEE Photon. Technol. Lett. Gnauck, A., H., Reichmann, K., C., Kahn, J., M., Korotky, S., K., Veselka, J., J., Koch, T., L. 1990; 2: 908-910
  • 4 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers IEEE Photon. Technol. Lett. Kahn, J., M., Gnauck, A., H., Veselka, J., J., Korotky, S., K., Kasper, B., L. 1990; 2: 285-287
  • BPSK Homodyne Detection Experiment Using Balanced Optical Phase-Locked Loop with Quantized Feedback IEEE Photon. Technol. Lett. Kahn, J., M. 1990; 2: 840-843
  • BPSK Homodyne Detection Experiment Using Balanced Optical Phase-Locked Loop with Quantized Feedback Tech. Digest of Postdeadline Papers, 16th Euro. Conf. on Opt. Commun. Kahn, J., M. 1990: 991-994
  • 1 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers IEEE Photon. Technol. Lett. Kahn, J., M. 1989; 1: 340-342
  • PSK Homodyne Lightwave Transmission Using Semiconductor Lasers Tech. Digest of 15th Euro. Conf. on Opt. Commun. Kahn, J., M., Kasper, B., L. 1989
  • Optical Phaselock Receiver with Multi-Gigahertz Signal Bandwidth Electron. Lett. Kahn, J., M., Kasper, B., L., Pollock, K., J. 1989; 25: 626-627
  • Optical Phaselock Receiver with Multigigahertz Signal Bandwidth Tech. Digest of Seventh Intl. Conf. on Integ. Optics and Opt. Fiber Commun. Kahn, J., M., Kasper, B., L., Pollock, K., J. 1989
  • High-Stability 1.5 μm External-Cavity Lasers for Phase-Lock Applica-tions IEEE Photon. Technol. Lett. Kahn, J., M., Burrus, C., A., Raybon, G. 1989; 1: 159-161
  • 1 Gbit/s Integrate-and-Dump Filter for Digital Communication Systems Electron. Lett. Giles, C., R., Kahn, J., M. 1989; 25: 212-214
  • 1 Gbit/s Zero-IF DPSK Coherent Optical System Using a Single Photodetector Tech. Digest of Optical Fiber Commun. Conf. Kahn, J., M., Habbab, I., M. I., Giles, C., R. 1989: 72
  • 1 Gbit/s Zero-IF DPSK Coherent Optical System Using a Single Photodetector Electron. Lett. Kahn, J., M., Habbab, I., M. I., Giles, C., R. 1988; 24: 1455-1456
  • Phase-Insensitive Zero-IF Coherent Optical System Using Phase Switching Electron. Lett. Habbab, I., M. I., Kahn, J., M., Greenstein, L., J. 1988; 24: 974-975
  • Trigonal Hydrogen-Related Acceptor Complexes in Germanium Phys. Rev. B Kahn, J., M., McMurray Jr., R., E., Haller, E., E., Falicov, L., M. 1987; 36: 8001-8014
  • Hydrogen-Related Complexes in Silicon and Germanium: Static or Dynamic Defects? Gordon Res. Conf. on Point Defects, Line Defects and Interfaces in Semicond., Plymouth, NH Kahn, J., M. 1987
  • Trigonal Hydrogen-Related Acceptor Complexes in Germanium Bull. Am. Phys. Soc. Ser. II Kahn, J., M., McMurray, R., E., Haller, E., E., Falicov, L., M. 1987; 32: 841
  • Beryllium-Hydrogen and Zinc-Hydrogen Shal-low Acceptor Complexes in Germanium Solid State Commun. McMurray Jr., R., E. 1987; 61: 27-32
  • Isotope-Induced Symmetry Change in Dynamic Semiconductor Defects Phys. Rev. Lett. Kahn, J., M., Falicov, L., M., Haller, E., E. 1986; 57: 2077-2080
  • Copper-Dihydrogen Complex Shallow Acceptors in High-Purity Ger-manium Bull. Am. Phys. Soc. Ser. II Kahn, J., M., Haller, E., E., Falicov, L., M. 1986; 31: 695
  • A Shallow Hydrogen-Zinc Acceptor in Germa-nium Solid State Commun. McMurray Jr., R., E., Haegel, N., M., Kahn, J., M., Haller, E., E. 1985; 53: 1137
  • Low Temperature Atomic Hydrogen Diffusivity in Si and Ge Bull. Am. Phys. Soc. Ser. II Kahn, J., M., Pearton, S., J., Haller, E., E. 1984; 29: 208
  • Hydrogenation of Gold-Related Levels in Silicon by Electrolytic Doping J. Appl. Phys. Pearton, S., J., Hansen, W., L., Haller, E., E., Kahn, J., M. 1984; 55: 1221-1223
  • The Nature of the Dominant Gamma-Induced Defects in High-Purity Germanium Rad. Effects Pearton, S., J., Tavendale, A., J., Kahn, J., M., Haller, E., E. 1984; 81: 293-308
  • Deep Level Impurities in Germanium and Silicon: Low Temperature Passivation or Removal Techniques IEEE Trans. Nucl. Sci. Pearton, S., J., Tavendale, A., J., Kahn, J., M., Haller, E., E. 1984; NS-31: 326-330
  • Quenched-In Deep Acceptors in Germanium J. Phys. C Pearton, S., J., Haller, E., E., Kahn, J., M. 1984; 17: 2375-2379
  • Deuterium in Germanium: Interaction with Point Defects J. Appl. Phys. Pearton, S., J., Kahn, J., M., Hansen, W., L., Haller, E., E. 1984; 55: 1464-1471
  • Deep Level Effects in Silicon and Germanium after Plasma Hydrogenation J. Electron. Matls. Pearton, S., J., Kahn, J., M., Haller, E., E. 1983; 12: 1003-1014
  • Dislocations in Germanium: Effects of Plasma Hydrogenation Phys. Stat. Solidi A Pearton, S., J., Kahn, J., M. 1983; 78: K65-K69

Books and Book Chapters


  • Mode Coupling and its Impact on Spatially Multiplexed Systems Optical Fiber Telecommunications VI B: Systems and Networks Ho, K., P., Kahn, J., M. edited by Kaminow, I., P., Li, T., Willner, A., E. Elsevier, Amsterdam. 2013: 1
  • Principal Modes in Multimode Fiber: Modeling and Compensation of Dispersion Shemirani, M., B., Kahn, J., M. VDM Verlag, Saarbrücken, Germany. 2010: 1
  • Nonlinear Impairment Compensation using Backpropagation Optical Fibre, New Developments Ip, E., Kahn, J., M. edited by Lethien, C. In-Tech, Vienna Austria. 2009: 1
  • Communication Techniques and Coding for Atmospheric Turbulence Channels Free-Space Laser Communications: Principles and Advances Zhu, X., Kahn, J., M. edited by Majumdar, A., K., Ricklin, J., C. Springer, New York. 2008: 1
  • Modulation and Detection Techniques for DWDM Systems Kahn, J., M., Ho, K., P. edited by Forestieri, E. Optical Communication Theory and Techniques. 2004
  • Dispersion Limitations in Optical Systems using Offset DPSK Modulation Wang, J., Kahn, J., M. edited by Forestieri, E. Optical Communication Theory and Techniques. 2004
  • Wireless Communications: Future Directions Design of High-Speed Wireless Links Using Non-Directional Infrared Radiation Kahn, J., M., Barry, J., R., Audeh, M., D., Lee, E., A., Messerschmitt, D., G. Kluwer Academic. 1992: 109-126

Conference Proceedings


  • Experimental Demonstration of a Spatial Light Modulator-based Few-Mode Fiber Switch for Space-Division Multiplexing Gu, R., Y., Ip, E., Li, M., J., Huang, Y., K, Kahn, J., M. 2013
  • Adaptive Control of Mode-Dependent Gain in Multi-Mode Erbium-Doped Fiber Amplifiers Mahalati, R., Nasiri, Askarov, D., Kahn, J., M. 2013
  • Blind Adaptation of Channel-Matched Receivers in Free-Space Coherent Laser Communication Belmonte, A., Kahn, J., M. 2012
  • Multi-Carrier versus Single-Carrier Intensity Modulation Techniques for Indoor Optical Wireless Links Kahn, J., M., Barros, Daniel, J. F., Wilson, S. K. 2012
  • Field Conjugation Adaptive Arrays for Reliable Space Downlink Coherent Laser Communications Belmonte, A., Kahn, J., M. 2012
  • Mode Coupling Effects in Mode-Division-Multiplexed Systems Kahn, J., M., Ho, K., P. 2012
  • Design of Multi-Mode Erbium-Doped Fiber Amplifiers for Low Mode-Dependent Gain Askarov, D., Kahn, J., M. 2012
  • Mode-Coupling Effects in Multimode Fibers Kahn, J., M., Ho, K., P., Shemirani, M., B. 2012
  • Bandwidth-Scalable OFDM Long-Haul Transmission Kahn, J., M. 2011
  • System Architecture for Bandwidth-Scalable OFDM Long-Haul Transmission Barros, D., J. F., Kahn, J., M., Wilde, J., P., Zeid, T., Abou 2011
  • Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links Belmonte, A., Kahn, J., M. 2011
  • Modulation of Photons and Biphotons Harris, S., E., Belthangady, C., Chuu, C., S., Du, S., Kolchin, P., Sensarn, S., Kahn, Joseph, M. 2010
  • Rate-Adaptive Transmission Techniques for Optical Fiber Systems Kahn, J., M., Gho, G., H. 2010
  • Understanding the Performance of Atmospheric Free-Space Laser Communications Systems using Coherent Detection Belmonte, A., Kahn, J., M. 2010
  • Analysis of a Field-Conjugation Adaptive Array for Coherent Free-Space Optical Links Belmonte, A., Kahn, J., M. 2010
  • Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links Belmonte, A., Kahn, J., M. 2010
  • Rate-Adaptive Coding for Optical Fiber Transmission Systems Gho, G., H., Kahn, J., M. 2010
  • Principles of Digital Coherent Receivers for Optical Communications Kahn, J., M., Ip, E. 2009
  • Fundamental Limits on Diversity Coherent Reception on Atmospheric Optical Channels Belmonte, A., Kahn, J., M. 2009
  • Principal Modes in Graded-Index Multimode Fibers Shemirani, M., B., Kahn, J., M. 2009
  • Effects of Atmospheric Compensation Techniques on the Performance of Synchronous Receivers Belmonte, A., Kahn, J., M. 2009
  • On the Statistics of Intrachannel Four-Wave Mixing in Phase-Modulated Optical Communication Systems Lau, A. P., Rabbani, S., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2008: 2128-2135
  • Performance of Synchronous or Nonsynchronous Receivers Using Atmospheric Compensation Techniques Belmonte, A., Kahn, J., M. 2008
  • Compensation of Dispersion and Nonlinearity in WDM Transmission using Simplified Digital Backpropagation Ip, E., Lau, A., P. T., Barros, D., J. F., Kahn, J., M. 2008
  • Compensation of Chromatic Dispersion and Nonlinearity using Simplified Digital Backpropagation Ip, E., Lau, A., P. T., Barros, D., J. F., Kahn, J., M. 2008
  • Increasing Optical Fiber Transmission Capacity Beyond Next-Generation Systems Ip, E., Kahn, J., M. 2008
  • Compensating Multimode Fiber Dispersion using Adaptive Optics Kahn, J., M. 2007
  • Coherent Optical Communications: Fundamentals and Future Prospects Kahn, J., M., Kazovsky, L., G. 2006
  • Modulation and Detection Techniques for Optical Communication Systems Kahn, J., M. 2006
  • Non-Optimality of Distributed Amplification in Presence of Nonlinear Phase Noise Lau, A., P. T., Kahn, J., M. 2006
  • Electronic Compensation of Linear and Nonlinear Impairments in Phase-Modulated Systems Ho, K., P., Kahn, J., M. 2006
  • Electronic Compensation of Nonlinear Phase Noise for Phase-Modulated Signals Ho, K., P., Kahn, J., M. 2005
  • Spectral Efficiency Limits in DWDM Systems Kahn, J., M., Ho, K., P. 2005
  • Compensation of Multimode Fiber Dispersion using Adaptive Optics Shen, X., Kahn, J., M., Horowitz, M., A. 2005
  • Dispersion Limitations in Optical Systems using Offset DPSK Modulation Wang, J., Kahn, J., M. 2004
  • Equalization of Modal Dispersion in Multimode Fiber using Spatial Light Modulators Alon, E., Stojanović, V., Kahn, J., M., Boyd, S., P., Horowitz, M., A. 2004
  • Towards a 1 mm3 Camera: The Field Stitching Micromirror Last, M., Zhou, L., Milanović, V., Kahn, J., M., Pister, K., S. J. 2003
  • Communication Techniques to Mitigate Atmospheric Turbulence in Free-Space Optical Links Zhu, X., Kahn, J., M. 2003
  • MEMS for Free-Space Optical Communications Kahn, J., M., Pister, K., S. J., Solgaard, O. 2003
  • Two-Axis Scanning Mirror for Free-Space Optical Communication between UAVs Zhou, L., Last, M., Milanovic, V., Kahn, J., M., Pister, K., S. J. 2003
  • Secure Free-Space Optical Communication Between Moving Platforms Kahn, J., M. 2002
  • The Role of Electronic Modulation and Signal Processing in Next-Generation Fiber Transport Ralston, J., D., Kahn, J., M., Ho, K., P. 2002
  • An Autonomous 16 mm3 Solar-Powered Node for Distributed Wireless Sensor Networks Warneke, B., A., Scott, M., D., Liebowitz, B., S., Zhou, L., Bellew, C., L., Chediak, J., A., Kahn, Joseph, M. 2002
  • Acquisition in Short-range Free-Space Optical Communication Wang, J., Kahn, J., M. 2002
  • Channel Capacity of WDM Systems Using Constant-Intensity Modulation Formats Ho, K., P., Kahn, J., M. 2002
  • Queueing Models of Optical Delay Lines in Synchronized Optical Packet-Switching Net-works with Non-Uniform Traffic Zhu, X., Kahn, J., M. 2002
  • Ultimate Spectral Efficiency Limits in DWDM Systems Kahn, J., M., Ho, K., P. 2002
  • Power-Efficient Multiple-Subcarrier Modulation Scheme for Optical Wireless Communications Yu, B., Kahn, J., M., You, R. 2002
  • Spectrally Efficient and Impairment-Robust Modulation Techniques for 40 Gb/s Optical Transmission Systems Ralston, J., D., Kahn, J., M., Ho, K., P. 2002
  • Pairwise Codeword Error Probability for Coded Free-Space Optical Communication through Atmospheric Turbulence Channels Zhu, X., Kahn, J., M. 2001
  • Capacity Bound of Optical IM/DD Channels Using Multiple-Subcarrier Modulation with Fixed Bias You, R., Kahn, J., M. 2001
  • Pilot-Symbol Assisted Modulation for Correlated Turbulent Free-Space Optical Chan-nels Zhu, X., Kahn, J., M. 2001
  • Free-space Heterochronous Imaging Reception of Multiple Optical Signals Mao, W., Kahn, J., M. 2001
  • Computing Insertion Loss in MEMS Optical Switches Caused By Non-Flat Mirrors Zhu, X., Kahn, J., M. 2001
  • Capacity Scaling in Dual Antenna Array Wireless Systems Tse, D., Chuah, C., Kahn, J., M. 2000
  • Maximum-Likelihood Spatial-Diversity Reception on Correlated Turbulent Free-Space Optical Channels Zhu, X., Kahn, J., M. 2000
  • Performance of Turbo Codes with Two-Branch Diversity and Correlated Fading Ohtsuki, T., Kahn, J., M. 2000
  • Capacity Growth of Multi-Ele-ment Arrays in Indoor and Outdoor Wireless Channels Chuah, C., Foschini, G., J., Valenzuela, R., A., Chizhik, D., Ling, J., Kahn, J., M. 2000
  • Average Power Reduction Techniques for Multiple-Subcarrier Intensity-Modulated Opti-cal Signals You, R., Kahn, J., M. 2000
  • Performance Analysis of Linear Binary Block-Coded Optical PPM CDMA Systems with Soft-Decision Decoding Ohtsuki, T., Kahn, J., M. 2000
  • Capacity Scaling in Dual Antenna Array Wireless Systems Tse, D., Chuah, C., Kahn, J., M. 2000
  • Turbo-Coded Optical PPM CDMA Systems Ohtsuki, T., Kahn, J., M. 2000
  • Transfer Function Bounds on Performance of Binary Turbo Coding Followed by M- ary Orthogonal Signal Mapping through Interleaver Ohtsuki, T., Kahn, J., M. 2000
  • Effect of Non-Reciprocity on Infrared Wireless Local-Area Networks Chow, F., Kahn, J., M. 1999
  • Analysis of Infrared Wireless Links Employing Multi-Beam Transmitters and Imaging Diversity Receivers Djahani, P., Kahn, J., M. 1999
  • Transfer Function Bounds on Performance of Turbo Codes for M-ary Orthogonal Sig-nals Ohtsuki, T., Kahn, J., M. 1999
  • Effect of Non-Reciprocity on Infrared Wireless Local-Area Networks Chow, F., Kahn, J., M. 1999
  • Layered Space-Time Codes for Wireless Communications using Multiple Transmit Antennas Shiu, D., Kahn, J., M. 1999
  • Average-Power Reduction Techniques for Multiple-Subcarrier Optical Intensity Modula-tion You, R., Kahn, J., M. 1999
  • Scalable Layered Space-Time Codes for Wireless Communications: Performance Analy-sis and Design Criteria Shiu, D., Kahn, J., M. 1999
  • Mobile Networking for ‘Smart Dust Kahn, J., M., Katz, R., H., Pister, K., S.J. 1999
  • Rate-Adaptive Modulation Techniques for Infrared Wireless Communications Diana, L., Kahn, J., M. 1999
  • Experimental 25-Mb/s Wireless Infrared Link Using 4-PPM with Scalar Decision- Feedback Equalization Lee, D., C., Kahn, J., M. 1998
  • Differential Pulse-Position Modulation for Power-Efficient Optical Communication Shiu, D., Kahn, J., M. 1998
  • Coding and Equalization for PPM on Wireless Infrared Channels Lee, D., C., Kahn, J., M. 1998
  • Capacity of Multi-Antenna Array Systems in Indoor Wireless Environment Chuah, C., Tse, D., Kahn, J., M. 1998
  • Angle Diversity for Nondirected Wireless Infrared Communication Carruthers, J., B., Kahn, J., M. 1998
  • Shaping and Non-Equiprobable Signaling for Intensity-Modulated Signals Shiu, D., Kahn, J., M. 1998
  • Fading Correlation and its Effect on the Capacity of Multi-Ele-ment Antenna Systems Shiu, D., Foschini, G., Gans, M., J., Kahn, J., M. 1998
  • Wireless Infrared Communications Kahn, J., M., Barry, J., R. 1997
  • Diffractive Spot-Array Generation Using Multimode Surface-Emitting Lasers and Light-Emitting Diodes Hoch, J., S., Grot, A., Kahn, J., M. 1996
  • Modeling of Non-Directed Wireless Infrared Channels Carruthers, J., B., Kahn, J., M. 1996
  • Combined Source-Channel Coding Using Channel-Optimized Quantizer and Multicar-rier Modulation Ho, K., P., Kahn, J., M. 1996
  • Channel Reuse Strategies for Indoor Infrared Wireless Communications Marsh, G., W., Kahn, J., M. 1996
  • Wireless Infrared Communication Links using Multi-Beam Transmitters and Imaging Receivers Tang, A., P., Kahn, J., M., Ho, K., P. 1996
  • Transmission of DCT-Coded Images by Multicarrier Modulation for Noisy Channels Ho, K., P., Kahn, J., M. 1995
  • Crosstalk Measurement and Reduction in Dense WDM Systems Using Subcarrier Tone Channel Identification and Linear Cancellation Ho, K., P., Kahn, J., M. 1995
  • Combined Source-Channel Coding Using Multicarrier Modulation Ho, K., P., Kahn, J., M. 1995
  • Performance Evaluation of Experimental 50-Mb/s Diffuse Infrared Wireless Link using On-Off Keying with Decision-Feedback Equalization Marsh, G., W., Kahn, J., M. 1995
  • Performance of L-Pulse-Position Modulation with Trellis-Coded Modula-tion on Non-Directed Indoor Infrared Channels Lee, D., C., Audeh, M., D., Kahn, J., M. 1995
  • Channel Compression in Subcarrier-Multiplexed Lightwave Systems Ho, K., P., Kahn, J., M. 1994
  • Design of Non-Directed Infrared Links for High-Speed Wireless Networks Barry, J., R., Kahn, J., M. 1994
  • Multiple-Subcarrier Modulation for Non-Directed Wireless Infrared Communi-cation Carruthers, J., B., Kahn, J., M. 1994
  • 50-Mb/s Diffuse Infrared Free-Space Link Using On-Off Keying with Decision Feedback Equalization Marsh, G., W., Kahn, J., M. 1994
  • 50-Mb/s Diffuse Infrared Free-Space Link Using On-Off Keying with Decision Feedback Equalization Marsh, G., W., Kahn, J., M. 1994
  • Reduction of Feedback-Induced Intensity Noise in Vertical-Cavity Sur-face-Emitting Laser by Superposition of High-Frequency Current Ho, K., P., Walker, J., D., Kahn, J., M. 1993
  • Simulation Tools for Free-Space Optical Interconnects Based on Computer-Generated Holograms Kahn, J., M., Hoch, J., S. 1993
  • Free-Space Infrared Communication for Wireless Indoor Networks Kahn, J., M. 1992
  • Design of High-Speed Wireless Links Using Non-Directional Infrared Radiation Kahn, J., M., Barry, J., R., Audeh, M., D., Lee, E., A., Messerschmitt, D., G. 1992
  • Performance Simulation of Baseband OOK Modulation for Wireless Infrared LANs at 100 Mb/s Audeh, M., D., Kahn, J., M. 1992
  • Free-Space Infrared Communication for Wireless Indoor Networks Kahn, J., M. 1992
  • Modeling of Indoor Free-Space Infrared Propaga-tion Barry, J., R., Kahn, J., M., Lee, E., A., Messerschmitt, D., G. 1991
  • Copper-Dihydrogen Acceptors in High-Purity Germanium Kahn, J., M., Haller, E., E., Falicov, L., M. 1986
  • A Shallow Hydrogen-Zinc Acceptor in Germa-nium, McMurray Jr., R., E., Haegel, N., M., Kahn, J., M., Haller, E., E. 1984