Joseph Kahn's Profile | Stanford Profiles

Geometric Shaping for Distortion-Limited Intensity Modulation/Direct Detection Data Center Links IEEE PHOTONICS JOURNAL Liang, E. M., Kahn, J. M. 2023; 15 (6)

View details for DOI 10.1109/JPHOT.2023.3335398

View details for Web of Science ID 001130593700003

Optimal Shaping for the Stokes Vector Receiver JOURNAL OF LIGHTWAVE TECHNOLOGY Jia, H., Liang, E., Kahn, J. M. 2023; 41 (22): 6884-6897

View details for DOI 10.1109/JLT.2023.3299306

View details for Web of Science ID 001114681000005

Design of Mode-Locked Semiconductor Laser Comb-Based Analog Coherent Links JOURNAL OF LIGHTWAVE TECHNOLOGY Chen, E., Coldren, L. A., Kahn, J. M. 2023; 41 (18): 5930-5941

View details for DOI 10.1109/JLT.2023.3273479

View details for Web of Science ID 001085215500016

Efficient Integrated Multimode Amplifiers for Scalable Long-Haul SDM Transmission JOURNAL OF LIGHTWAVE TECHNOLOGY Srinivas, H., Krutko, O., Kahn, J. M. 2023; 41 (15): 4989-5002

View details for DOI 10.1109/JLT.2023.3254305

View details for Web of Science ID 001037845700014

Differential Edge Modulation Signaling for Low-Energy, High-Speed Wireline Communication IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS Smith, R. L., Hossain, M., Werner, C. W., Kahn, J. M., Lee, T. H. 2023

View details for DOI 10.1109/TCSI.2023.3279231

View details for Web of Science ID 001005749400001

Effect of Higher-Order Modal Dispersion in Direct-Detection Mode-Division-Multiplexed Links JOURNAL OF LIGHTWAVE TECHNOLOGY Vijay, A., Kahn, J. M. 2023; 41 (6): 1670-1683

View details for DOI 10.1109/JLT.2022.3226704

View details for Web of Science ID 000946221800009

Impact and Mitigation of Mode-Dependent Gain in Ultra-Long-Haul SDM Systems Mello, D. A., Ospina, R. B., Srinivas, H., Choutagunta, K., Chou, E., Kahn, J. M., IEEE IEEE. 2023

View details for Web of Science ID 001009232500334

Phase Noise Analysis of Resonator-Enhanced Electro-Optic Comb-Based Analog Coherent Receivers JOURNAL OF LIGHTWAVE TECHNOLOGY Chen, E., Buscaino, B., Kahn, J. M. 2022; 40 (21): 7117-7128

View details for DOI 10.1109/JLT.2022.3200632

View details for Web of Science ID 000879047200015

High-efficiency and broadband on-chip electro-optic frequency comb generators NATURE PHOTONICS Hu, Y., Yu, M., Buscaino, B., Sinclair, N., Zhu, D., Cheng, R., Shams-Ansari, A., Shao, L., Zhang, M., Kahn, J. M., Loncar, M. 2022

View details for DOI 10.1038/s41566-022-01059-y

View details for Web of Science ID 000847278700003

Successive Interference Cancellation on Frequency-Selective Channels With Mode-Dependent Gain JOURNAL OF LIGHTWAVE TECHNOLOGY Chou, E. S., Kahn, J. M. 2022; 40 (12): 3729-3738

View details for DOI 10.1109/JLT.2022.3150355

View details for Web of Science ID 000808089600019

Phase Retrieval-Based Coherent Receivers: Signal Design and Degrees of Freedom JOURNAL OF LIGHTWAVE TECHNOLOGY Chou, E. S., Srinivas, H., Kahn, J. M. 2022; 40 (5): 1296-1307

View details for DOI 10.1109/JLT.2021.3130651

View details for Web of Science ID 000766268400006

Modal Multiplexing and Atmospheric Turbulence Mitigation in Free-Space Optical Communications Kahn, J. M., Belmonte, A., IEEE IEEE. 2022

View details for Web of Science ID 000925380500456

Optimal modes for spatially multiplexed free-space communication in atmospheric turbulence OPTICS EXPRESS Belmonte, A., Kahn, J. M. 2021; 29 (26): 43556-43566

View details for DOI 10.1364/OE.442797

View details for Web of Science ID 000730136600098

Modeling and Experimental Measurement of Power Efficiency for Power-Limited SDM Submarine Transmission Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Srinivas, H., Downie, J. D., Hurley, J., Liang, X., Himmelreich, J., Perin, J., Mello, D. A., Kahn, J. M. 2021; 39 (8): 2376–86

View details for DOI 10.1109/JLT.2021.3049709

View details for Web of Science ID 000633442200014

External vs. Integrated Light Sources for Intra-Data Center Co-Packaged Optical Interfaces JOURNAL OF LIGHTWAVE TECHNOLOGY Buscaino, B., Chen, E., Stewart, J. W., Pham, T., Kahn, J. M. 2021; 39 (7): 1984–96

View details for DOI 10.1109/JLT.2020.3043653

View details for Web of Science ID 000628977000010

Coherent Data Center Links JOURNAL OF LIGHTWAVE TECHNOLOGY Perin, J., Shastri, A., Kahn, J. M. 2021; 39 (3): 730–41

View details for DOI 10.1109/JLT.2020.3043951

View details for Web of Science ID 000612137500005

Phase Retrieval-Based Coherent Receivers Chou, E. S., Srinivas, H., Kahn, J. M., IEEE IEEE. 2021

View details for Web of Science ID 000698978300280

High-efficiency and broadband electro-optic frequency combs using coupled lithium-niobate microresonators Hu, Y., Yu, M., Buscaino, B., Sinclair, N., Zhu, D., Shams-Ansari, A., Shao, L., Zhang, M., Kahn, J. M., Loncar, M., IEEE IEEE. 2021

View details for Web of Science ID 000831479801005

Experimental Characterization of Power Efficiency for Power-Limited SDM Submarine Transmission Systems Downie, J. D., Hurley, J., Liang, X., Himmelreich, J., Srinivas, H., Perin, J., Mello, D. A., Kahn, J. M., IEEE IEEE. 2021

View details for DOI 10.1109/ECOC48923.2020.9333332

View details for Web of Science ID 000662178500207

Designing High-Performance Multimode Fibers Using Refractive Index Optimization JOURNAL OF LIGHTWAVE TECHNOLOGY Choutagunta, K., Kahn, J. M. 2021; 39 (1): 233–42

View details for DOI 10.1109/JLT.2020.3022636

View details for Web of Science ID 000599498500027

Adaptive Coding and Modulation for Robust Optical Access Networks JOURNAL OF LIGHTWAVE TECHNOLOGY Chou, E. S., Kahn, J. M. 2020; 38 (8): 2242–52

View details for DOI 10.1109/JLT.2019.2963276

View details for Web of Science ID 000528521100017

Effect of atmospheric turbulence on timing instability for partially reciprocal two-way optical time transfer links PHYSICAL REVIEW A Taylor, M. T., Belmonte, A., Hollberg, L., Kahn, J. M. 2020; 101 (3)

View details for DOI 10.1103/PhysRevA.101.033843

View details for Web of Science ID 000522159300011

Design of Efficient Resonator-Enhanced Electro-Optic Frequency Comb Generators JOURNAL OF LIGHTWAVE TECHNOLOGY Buscaino, B., Zhang, M., Loncar, M., Kahn, J. M. 2020; 38 (6): 1400–1413

View details for DOI 10.1109/JLT.2020.2973884

View details for Web of Science ID 000522169400034

Adapting Mach-Zehnder Mesh Equalizers in Direct-Detection Mode-Division-Multiplexed Links JOURNAL OF LIGHTWAVE TECHNOLOGY Choutagunta, K., Roberts, I., Miller, D. B., Kahn, J. M. 2020; 38 (4): 723–35

View details for DOI 10.1109/JLT.2019.2952060

View details for Web of Science ID 000516613400004

Impact of Polarization- and Mode-Dependent Gain on the Capacity of Ultra-Long-Haul Systems Mello, D. A., Srinivas, H., Choutagunta, K., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2020: 303–18

View details for DOI 10.1109/JLT.2019.2957110

View details for Web of Science ID 000510911600017

Two-Way Time and Frequency Transfer via Ground-to-Satellite Optical Communications Links Taylor, M. T., Kahn, J. M., Hollberg, L., Inst Navigat INST NAVIGATION. 2020: 207–15

View details for DOI 10.33012/2020.17300

View details for Web of Science ID 000544823000010

Data Center Links Beyond 100 Gb/s per Wavelength Kahn, J. M., Perin, J., Shastri, A., IEEE IEEE. 2020

View details for Web of Science ID 000676346200437

Impact and Mitigation of Polarization- or Mode-Dependent Gain in Ultra-Long-Haul Systems Srinivas, H., Chou, E. S., Mello, D. A., Choutagunta, K., Kahn, J. M., IEEE IEEE. 2020

View details for Web of Science ID 000629119400142

Multi-Tb/s-per-Fiber Coherent Co-Packaged Optical Interfaces for Data Center Switches JOURNAL OF LIGHTWAVE TECHNOLOGY Buscaino, B., Taylor, B. D., Kahn, J. M. 2019; 37 (13): 3401–12

View details for DOI 10.1109/JLT.2019.2916988

View details for Web of Science ID 000472158700029

Importance of Amplifier Physics in Maximizing the Capacity of Submarine Links JOURNAL OF LIGHTWAVE TECHNOLOGY Perin, J., Kahn, J. M., Downie, J. D., Hurley, J., Bennett, K. 2019; 37 (9): 2076–85

View details for DOI 10.1109/JLT.2019.2897831

View details for Web of Science ID 000465030800027

Broadband electro-optic frequency comb generation in a lithium niobate microring resonator NATURE Zhang, M., Buscaino, B., Wang, C., Shams-Ansari, A., Reimer, C., Zhu, R., Kahn, J. M., Loncar, M. 2019; 568 (7752): 373-+

View details for DOI 10.1038/s41586-019-1008-7

View details for Web of Science ID 000464950700052

Efficient Quantification and Simulation of Modal Dynamics in Multimode Fiber Links JOURNAL OF LIGHTWAVE TECHNOLOGY Choutagunta, K., Roberts, I., Kahn, J. M. 2019; 37 (8): 1813–25

View details for DOI 10.1109/JLT.2018.2889675

View details for Web of Science ID 000465027900008

Broadband electro-optic frequency comb generation in a lithium niobate microring resonator. Nature Zhang, M., Buscaino, B., Wang, C., Shams-Ansari, A., Reimer, C., Zhu, R., Kahn, J. M., Loncar, M. 2019

Abstract

Optical frequency combs consist of equally spaced discrete optical frequency components and are essential tools for optical communication, precision metrology, timing and spectroscopy1-9. At present, combs with wide spectra are usually generated by mode-locked lasers10 or dispersion-engineered resonators with third-order Kerr nonlinearity11. An alternative method of comb production uses electro-optic (EO) phase modulation in a resonator with strong second-order nonlinearity, resulting in combs with excellent stability and controllability12-14. Previous EO combs, however, have been limited to narrow widths by a weak EO interaction strength and a lack of dispersion engineering in free-space systems. Here we overcome these limitations by realizing an integrated EO comb generator in a thin-film lithium niobate photonic platform that features a large EO response, ultralow optical loss and highly co-localized microwave and optical fields15, while enabling dispersion engineering. Our measured EO comb spans more frequencies than the entire telecommunications L-band (over 900 comb lines spaced about 10 gigahertz apart), and we show that future dispersion engineering can enable octave-spanning combs. Furthermore, we demonstrate the high tolerance of our comb generator to modulation frequency detuning, with frequency spacing finely controllable over seven orders of magnitude (10 hertz to 100 megahertz), and we use this feature to generate dual-frequency combs in a single resonator. Our results show that integrated EO comb generators are capable of generating wide and stable comb spectra. Their excellent reconfigurability is a powerful complement to integrated Kerr combs, enabling applications ranging from spectroscopy16 to optical communications8.

View details for PubMedID 30858615

Mode-Multiplexed Transmission Within and Across Mode Groups of a Multimode-Fiber Wittek, S., Ryf, R., Fontaine, N. K., Choutagunta, K., Mazur, M., Chen, H., Alvarado-Zacarias, J., Capuzzo, M., Kopf, R., Tate, A., Safar, H., Bolle, C., Neilson, D. T., Burrows, E., Kim, K., Bigot-Astruc, M., Achten, F., Sillard, P., Amezcua-Correa, A., Kahn, J. M., Schroder, J., Amezcua-Correa, R., Carpenter, J., IEEE IEEE. 2019

View details for Web of Science ID 000469837300291

Coherent Co-packaged Optical Interfaces for Next-Generation Electrical Switches Buscaino, B., Kahn, J. M., Taylor, B. D., IEEE IEEE. 2019

View details for Web of Science ID 000520481500204

Modal Dynamics in Spatially Multiplexed Links Choutagunta, K., Ryf, R., Fontaine, N., Wittek, S., Alvarado-Zacarias, J., Mazur, M., Chen, H., Essiambre, R., Amezcua-Correa, R., Hayashi, T., Tamura, Y., Hasegawa, T., Taru, T., Kahn, J. M., IEEE IEEE. 2019

View details for Web of Science ID 000469837300270

Scaling SDM Optical Networks Using Full-Spectrum Spatial Switching JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING Jatoba-Neto, A. C., Mello, D. A., Rothenberg, C. E., Arik, S. O., Kahn, J. M. 2018; 10 (12): 991–1004

View details for DOI 10.1364/JOCN.10.000991

View details for Web of Science ID 000454651400007

Characterizing Mode-Dependent Loss and Gain in Multimode Components JOURNAL OF LIGHTWAVE TECHNOLOGY Choutagunta, K., Arik, S. O., Ho, K., Kahn, J. M. 2018; 36 (18): 3815–23

View details for DOI 10.1109/JLT.2018.2851184

View details for Web of Science ID 000439619600002

Data center links beyond 100 Gbit/s per wavelength OPTICAL FIBER TECHNOLOGY Perin, J., Shastri, A., Kahn, J. M. 2018; 44: 69–85

View details for DOI 10.1016/j.yofte.2017.12.006

View details for Web of Science ID 000436785500009

Measurement-Based Optimization of Channel Powers With Non-Gaussian Nonlinear Interference Noise JOURNAL OF LIGHTWAVE TECHNOLOGY Roberts, I., Kahn, J. M. 2018; 36 (13): 2746–56

View details for DOI 10.1109/JLT.2018.2822719

View details for Web of Science ID 000432324800022

Low-Complexity Implementation of Convex Optimization-Based Phase Retrieval JOURNAL OF LIGHTWAVE TECHNOLOGY Arik, S. O., Kahn, J. M. 2018; 36 (12): 2358–65

View details for DOI 10.1109/JLT.2018.2811755

View details for Web of Science ID 000428894700002

Channel Power Optimization of WDM Systems Following Gaussian Noise Nonlinearity Model in Presence of Stimulated Raman Scattering (vol 35, pg 5237, 2017) JOURNAL OF LIGHTWAVE TECHNOLOGY Roberts, I., Kahn, J. M., Harley, J., Boertjes, D. 2018; 36 (11): 2309

View details for DOI 10.1109/JLT.2018.2809584

View details for Web of Science ID 000443184300011

DSP-Free Coherent Receivers for Data Center Links Perin, J., Shastri, A., Kahn, J. M., IEEE IEEE. 2018

View details for Web of Science ID 000437286300234

Data Center Links Beyond 100 Gbit/s per Wavelength Perin, J., Shastri, A., Kahn, J. M., He, S., Lee, E. H. SPIE-INT SOC OPTICAL ENGINEERING. 2018

View details for DOI 10.1117/12.2292774

View details for Web of Science ID 000455780300020

Improving the Capacity of Terrestrial and Submarine Systems via Channel Power Optimization Perin, J., Roberts, I., Kahn, J. M., Jaworski, M., Marciniak, M. IEEE. 2018

View details for Web of Science ID 000462559300081

Approaching fundamental limits to free-space communication through atmospheric turbulence Belmonte, A., Kahn, J. M., Dingel, B. B., Tsukamoto, K., Mikroulis, S. SPIE-INT SOC OPTICAL ENGINEERING. 2018

View details for DOI 10.1117/12.2299623

View details for Web of Science ID 000450860100010

Stable Measurement of Effective Area in Coupled Multi-core Fiber Chou, E. S., Hayashi, T., Nagashima, T., Kahn, J. M., Nakanishi, T., IEEE IEEE. 2018

View details for Web of Science ID 000437286300679

Channel Power Optimization of WDM Systems Following Gaussian Noise Nonlinearity Model in Presence of Stimulated Raman Scattering JOURNAL OF LIGHTWAVE TECHNOLOGY Roberts, I., Kahn, J. M., Harley, J., Boertjes, D. W. 2017; 35 (23): 5237–49

View details for DOI 10.1109/JLT.2017.2771719

View details for Web of Science ID 000417737900010

Optical MIMO Signal Processing for Direct-Detection Mode-Division Multiplexing Choutagunta, K., Arik, S. O., Moradshahi, M., Kahn, J. M., IEEE IEEE. 2017

View details for Web of Science ID 000427031500329

Scaling Optical Networks Using Full-Spectrum Spatial Switching Jatoba-Neto, A. C., Rothenberg, C. E., Mello, D. A., Arik, S. O., Kahn, J. M., IEEE IEEE. 2017

View details for Web of Science ID 000425245100013

Sensitivity Improvement in 100 Gb/s-per-Wavelength Links Using Semiconductor Optical Amplifiers or Avalanche Photodiodes JOURNAL OF LIGHTWAVE TECHNOLOGY Perin, J. K., Sharif, M., Kahn, J. M. 2016; 34 (23): 5542-5553

View details for DOI 10.1109/JLT.2016.2620139

View details for Web of Science ID 000390847100024

Direct-detection mode-division multiplexing in modal basis using phase retrieval OPTICS LETTERS Arik, S. O., Kahn, J. M. 2016; 41 (18): 4265-4268

Abstract

Mode-division multiplexing (MDM) can increase the capacity of direct-detection short-reach systems in proportion to the number of modes employed. MDM requires compensation of modal crosstalk at a transmitter or receiver by the multi-input multi-output (MIMO) signal processing. We show that the channel estimation required for the MIMO processing in a basis of modes can be expressed as a phase retrieval problem. We propose three techniques for the estimation: sparse training sequences, convex optimization (CO) and alternating minimization. We demonstrate the superior performance of the CO technique.

View details for DOI 10.1364/OL.41.004265

View details for Web of Science ID 000384126300030

View details for PubMedID 27628373

Space-time reference with an optical link CLASSICAL AND QUANTUM GRAVITY Berceau, P., Taylor, M., Kahn, J., Hollberg, L. 2016; 33 (13)

View details for DOI 10.1088/0264-9381/33/13/135007

View details for Web of Science ID 000378334600010

Convex Channel Power Optimization in Nonlinear WDM Systems Using Gaussian Noise Model JOURNAL OF LIGHTWAVE TECHNOLOGY Roberts, I., Kahn, J. M., Boertjes, D. 2016; 34 (13): 3212-3222

View details for DOI 10.1109/JLT.2016.2569073

View details for Web of Science ID 000379767000024

Group Delay Management and Multiinput Multioutput Signal Processing in Mode-Division Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Arik, S. O., Ho, K., Kahn, J. M. 2016; 34 (11): 2867-2880

View details for DOI 10.1109/JLT.2016.2530978

View details for Web of Science ID 000379751000032

Modulation Schemes for Single-Laser 100 Gb/s Links: Multicarrier JOURNAL OF LIGHTWAVE TECHNOLOGY Perin, J. K., Sharif, M., Kahn, J. M. 2015; 33 (24): 5122-5132

View details for DOI 10.1109/JLT.2015.2480700

View details for Web of Science ID 000366106900002

Capacity limits of spatially multiplexed free-space communication NATURE PHOTONICS Zhao, N., Li, X., Liu, G., Kahn, J. M. 2015; 9 (12): 822-826

View details for DOI 10.1038/NPHOTON.2015.214

View details for Web of Science ID 000366150100015

Delay Spread Reduction in Mode-Division Multiplexing: Mode Coupling Versus Delay Compensation JOURNAL OF LIGHTWAVE TECHNOLOGY Arik, S. O., Ho, K., Kahn, J. M. 2015; 33 (21): 4504-4512

View details for DOI 10.1109/JLT.2015.2475422

View details for Web of Science ID 000362581600004

Design of flexible multi-mode fiber endoscope OPTICS EXPRESS Gu, R. Y., Mahalati, R. N., Kahn, J. M. 2015; 23 (21): 26905-26918

Abstract

Multi-mode fiber (MMF) endoscopes are extremely thin and have higher spatial resolution than conventional endoscopes; however, all current MMF endoscope designs require either that the MMF remain rigid during insertion and imaging or that the orientation of the MMF be known. This limits their possible medical applications. We describe an MMF endoscope design that allows the MMF to be arbitrarily bent as it is maneuvered to the target site prior to imaging. This is achieved by the addition of a partial reflector to the distal end of the MMF, which allows measurement of the mode coupling in the MMF using the reflected light arriving at the proximal end of the MMF. This measurement can be performed while the distal end of the endoscope is not directly accessible, as when the endoscope is being maneuvered. We simulate imaging through such a flexible MMF endoscope, where the MMF is step-index with 1588 spatial modes, and obtain an image even after the mode coupling matrix of the MMF is altered randomly, corresponding to an unknown bending of the MMF.

View details for DOI 10.1364/OE.23.026905

View details for Web of Science ID 000366574400003

View details for PubMedID 26480352

Modulation Schemes for Single-Laser 100 Gb/s Links: Single-Carrier JOURNAL OF LIGHTWAVE TECHNOLOGY Sharif, M., Perin, J. K., Kahn, J. M. 2015; 33 (20): 4268-4277

View details for DOI 10.1109/JLT.2015.2470523

View details for Web of Science ID 000362364100010

Long-Period Fiber Gratings for Mode Coupling in Mode-Division-Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Askarov, D., Kahn, J. M. 2015; 33 (19): 4032-4038

View details for DOI 10.1109/JLT.2015.2459070

View details for Web of Science ID 000360505300009

Performance of Direct-Detection Mode-Group-Division Multiplexing Using Fused Fiber Couplers JOURNAL OF LIGHTWAVE TECHNOLOGY Gasulla, I., Kahn, J. M. 2015; 33 (9): 1748-1760

View details for DOI 10.1109/JLT.2015.2392255

View details for Web of Science ID 000351352700008

Roles of spectral and spatial aggregation in optical network scaling Conference on Next-Generation Optical Communication - Components, Sub-Systems, and Systems IV Arik, S. O., Ho, K. P., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2015

View details for DOI 10.1117/12.2082656

View details for Web of Science ID 000350275100006

Array Receivers in Downlink Coherent Lasercom Conference on Free-Space Laser Communication and Atmospheric Propagation XXVII Belmonte, A., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2015

View details for DOI 10.1117/12.2079505

View details for Web of Science ID 000353710100005

MIMO signal processing in mode-division multiplexing systems Conference on Optical Metro Networks and Short-Haul Systems VII Arik, S. O., Askarov, D., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2015

View details for DOI 10.1117/12.2081299

View details for Web of Science ID 000354523400001

Optical network scaling: roles of spectral and spatial aggregation OPTICS EXPRESS Arik, S. O., Ho, K., Kahn, J. M. 2014; 22 (24): 29868-29887

Abstract

As the bit rates of routed data streams exceed the throughput of single wavelength-division multiplexing channels, spectral and spatial traffic aggregation become essential for optical network scaling. These aggregation techniques reduce network routing complexity by increasing spectral efficiency to decrease the number of fibers, and by increasing switching granularity to decrease the number of switching components. Spectral aggregation yields a modest decrease in the number of fibers but a substantial decrease in the number of switching components. Spatial aggregation yields a substantial decrease in both the number of fibers and the number of switching components. To quantify routing complexity reduction, we analyze the number of multi-cast and wavelength-selective switches required in a colorless, directionless and contentionless reconfigurable optical add-drop multiplexer architecture. Traffic aggregation has two potential drawbacks: reduced routing power and increased switching component size.

View details for DOI 10.1364/OE.22.029868

View details for Web of Science ID 000345770500055

Optical network scaling: roles of spectral and spatial aggregation. Optics express Arik, S. Ö., Ho, K., Kahn, J. M. 2014; 22 (24): 29868-29887

Abstract

As the bit rates of routed data streams exceed the throughput of single wavelength-division multiplexing channels, spectral and spatial traffic aggregation become essential for optical network scaling. These aggregation techniques reduce network routing complexity by increasing spectral efficiency to decrease the number of fibers, and by increasing switching granularity to decrease the number of switching components. Spectral aggregation yields a modest decrease in the number of fibers but a substantial decrease in the number of switching components. Spatial aggregation yields a substantial decrease in both the number of fibers and the number of switching components. To quantify routing complexity reduction, we analyze the number of multi-cast and wavelength-selective switches required in a colorless, directionless and contentionless reconfigurable optical add-drop multiplexer architecture. Traffic aggregation has two potential drawbacks: reduced routing power and increased switching component size.

View details for DOI 10.1364/OE.22.029868

View details for PubMedID 25606917

Frequency-Derivative Measurement Technique for Dispersive Effects in Single-Mode Fiber Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Askarov, D., Szafraniec, B., Baney, D. M., Kahn, J. M. 2014; 32 (22): 3854-3861

View details for DOI 10.1109/JLT.2014.2358585

View details for Web of Science ID 000345573800010

Wavelength-Selective Switches for Mode-Division Multiplexing: Scaling and Performance Analysis JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K., Kahn, J. M., Wilde, J. P. 2014; 32 (22): 3724-3735

View details for DOI 10.1109/JLT.2014.2355812

View details for Web of Science ID 000343010400005

Noise-reduction algorithms for optimization-based imaging through multi-mode fiber OPTICS EXPRESS Gu, R. Y., Mahalati, R. N., Kahn, J. M. 2014; 22 (12): 15118-15132

Abstract

Three modifications are shown to improve resolution and reduce noise amplification in endoscopic imaging through multi-mode fiber using optimization-based reconstruction (OBR). First, random sampling patterns are replaced by sampling patterns designed to have more nearly equal singular values. Second, the OBR algorithm uses a point-spread function based on the estimated spatial frequency spectrum of the object. Third, the OBR algorithm gives less weight to modes having smaller singular values. In simulations for a step-index fiber supporting 522 spatial modes, the modifications yield a 20% reduction in image error (l(2) norm) in the noiseless case, and a further 33% reduction in image error at a 22-dB shot noise-limited SNR as compared to the original method using random sampling patterns and OBR.

View details for DOI 10.1364/OE.22.015118

View details for Web of Science ID 000338044300103

Noise-reduction algorithms for optimization-based imaging through multi-mode fiber. Optics express Gu, R. Y., Mahalati, R. N., Kahn, J. M. 2014; 22 (12): 15118-15132

Abstract

Three modifications are shown to improve resolution and reduce noise amplification in endoscopic imaging through multi-mode fiber using optimization-based reconstruction (OBR). First, random sampling patterns are replaced by sampling patterns designed to have more nearly equal singular values. Second, the OBR algorithm uses a point-spread function based on the estimated spatial frequency spectrum of the object. Third, the OBR algorithm gives less weight to modes having smaller singular values. In simulations for a step-index fiber supporting 522 spatial modes, the modifications yield a 20% reduction in image error (l(2) norm) in the noiseless case, and a further 33% reduction in image error at a 22-dB shot noise-limited SNR as compared to the original method using random sampling patterns and OBR.

View details for DOI 10.1364/OE.22.015118

View details for PubMedID 24977605

Diversity-multiplexing tradeoff in mode-division multiplexing. Optics letters Arik, S. Ö., Kahn, J. M. 2014; 39 (11): 3258-3261

Abstract

The capacity of mode-division multiplexing (MDM) systems is limited, for a given outage probability, by mode-dependent loss (MDL) and gain. Modal degrees of freedom may be exploited to increase transmission rate (multiplexing gain) or lower outage probability (diversity gain), but there is a fundamental tradeoff between the achievable multiplexing and diversity gains. In this Letter, we present the diversity-multiplexing tradeoff in MDM systems for the first time, studying the impact of signal-to-noise ratio, MDL, and frequency diversity order on the tradeoff in the strong-mode-coupling regime.

View details for DOI 10.1364/OL.39.003258

View details for PubMedID 24876027

Adaptive Modal Gain Equalization Techniques in Multi-Mode Erbium-Doped Fiber Amplifiers JOURNAL OF LIGHTWAVE TECHNOLOGY Mahalati, R. N., Askarov, D., Kahn, J. M. 2014; 32 (11): 2133-2143

View details for DOI 10.1109/JLT.2014.2314746

View details for Web of Science ID 000337135900007

Adaptive Frequency-Domain Equalization in Mode-Division Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Arik, S. O., Askarov, D., Kahn, J. M. 2014; 32 (10)

View details for DOI 10.1109/JLT.2014.2303079

View details for Web of Science ID 000335922200001

Variable-Bandwidth Superchannels Using Synchronized Colorless Transceivers JOURNAL OF LIGHTWAVE TECHNOLOGY Sharif, M., Kahn, J. M. 2014; 32 (10): 1921-1929

View details for DOI 10.1109/JLT.2014.2310692

View details for Web of Science ID 000336316300001

MIMO Signal Processing for Mode-Division Multiplexing [An overview of channel models and signal processing architectures] IEEE SIGNAL PROCESSING MAGAZINE Arik, S. O., Kahn, J. M., Ho, K. 2014; 31 (2): 25-34

View details for DOI 10.1109/MSP.2013.2290804

View details for Web of Science ID 000334676100006

Coded Modulation for Fiber-Optic Networks [Toward better tradeoff between signal processing complexity and optical transparent reach] IEEE SIGNAL PROCESSING MAGAZINE Beygi, L., Agrell, E., Kahn, J. M., Karlsson, M. 2014; 31 (2): 93-103

View details for DOI 10.1109/MSP.2013.2290805

View details for Web of Science ID 000334676100012

Linear Propagation Effects in Mode-Division Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K., Kahn, J. M. 2014; 32 (4): 614-628

View details for DOI 10.1109/JLT.2013.2283797

View details for Web of Science ID 000330127900007

Optical Networking With Variable-Code-Rate Transceivers JOURNAL OF LIGHTWAVE TECHNOLOGY Mello, D. A., Barreto, A. N., de Lima, T. C., Portela, T. F., Beygi, L., Kahn, J. M. 2014; 32 (2): 257-266

View details for DOI 10.1109/JLT.2013.2292298

View details for Web of Science ID 000328946400001

Rate-Adaptive Coded Modulation for Fiber-Optic Communications JOURNAL OF LIGHTWAVE TECHNOLOGY Beygi, L., Agrell, E., Kahn, J. M., Karlsson, M. 2014; 32 (2): 333-343

View details for DOI 10.1109/JLT.2013.2285672

View details for Web of Science ID 000328968000002

Rate-Adaptive Coded Modulation for Fiber-Optic Communications J.of Lightwave Technol. Beygi, L., Agrell, E., Kahn, J., M. 2014; 32 (2): 333-343

Multimode Transmission Technologies 19th OptoElectronics and Communication Conference (OECC) / 39th Australian Conference on Optical Fibre Technology (ACOFT) Ip, E., Li, M., Gu, R. Y., Kahn, J. IEEE. 2014: 237–239

View details for Web of Science ID 000347188900090

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

View details for DOI 10.1109/LPT.2013.2280897

View details for Web of Science ID 000325690900007

Sequential Optimization of Adaptive Arrays in Coherent Laser Communications JOURNAL OF LIGHTWAVE TECHNOLOGY Belmonte, A., Kahn, J. M. 2013; 31 (9): 1383-1387

View details for DOI 10.1109/JLT.2013.2250484

View details for Web of Science ID 000316406600004

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

View details for DOI 10.1109/JLT.2012.2234083

View details for Web of Science ID 000313364100001

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 Conference on Optical Fiber Communication (OFC)/National Fiber Optic Engineers Conference (NFOEC) Kahn, J. M., Ho, K. IEEE. 2013

View details for Web of Science ID 000325101400453

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

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

The Time-Reversed Twin Nature Photonics Ip, E., Kahn, J., M. 2013; 7: 507-508

Adaptive Control of Mode-Dependent Gain in Multi-Mode Erbium-Doped Fiber Amplifiers IEEE-Photonics-Society Summer Topical Meeting Mahalati, R. N., Askarov, D., Kahn, J. M. IEEE. 2013: 107–108

View details for Web of Science ID 000333963600050

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

View details for DOI 10.1109/LPT.2012.2218654

View details for Web of Science ID 000310336400001

Delay-Spread Distribution for Multimode Fiber With Strong Mode Coupling IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K., Kahn, J. M. 2012; 24 (21): 1906-1909

View details for DOI 10.1109/LPT.2012.2218280

View details for Web of Science ID 000310140000003

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

View details for DOI 10.1364/JOCN.4.000760

View details for Web of Science ID 000310369200007

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

View details for DOI 10.1109/JLT.2012.2203585

View details for Web of Science ID 000306919500002

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

View details for DOI 10.1109/JLT.2012.2189435

View details for Web of Science ID 000302720400004

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

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

View details for DOI 10.1109/TCOMM.2011.112311.100538

View details for Web of Science ID 000300425700023

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

Mode Coupling in Coherent Mode-Division-Multiplexed Systems: Impact on Capacity and Signal Processing Complexity 46th Asilomar Conference on Signals, Systems and Computers Kahn, J. M., Ho, K. IEEE. 2012: 650–653

View details for Web of Science ID 000320768400120

Frequency Diversity in Mode-Division Multiplexing Systems JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K., Kahn, J. M. 2011; 29 (24): 3719-3726

View details for DOI 10.1109/JLT.2011.2173465

View details for Web of Science ID 000297943400002

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

View details for DOI 10.1364/JOCN.3.000830

View details for Web of Science ID 000298177200002

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

View details for DOI 10.1109/JLT.2011.2165316

View details for Web of Science ID 000296016100001

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

View details for DOI 10.1109/JLT.2011.2159192

View details for Web of Science ID 000296700100001

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

View details for DOI 10.1109/JLT.2011.2134831

View details for Web of Science ID 000291320000001

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

View details for DOI 10.1109/JLT.2010.2099208

View details for Web of Science ID 000286385500007

Rate-adaptive modulation and coding for optical fiber transmission systems Conference on Coherent Optical Communication - Components, Subsystems, and Systems Gho, G., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2011

View details for DOI 10.1117/12.881421

View details for Web of Science ID 000294061300007

Performance Analysis of Atmospheric Field Conjugation Adaptive Arrays Conference on Free-Space Laser Communication Technologies XXIII Belmonte, A., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2011

View details for DOI 10.1117/12.873056

View details for Web of Science ID 000297975300021

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

Spot Formation and Scanning Microscopy via Multimode Fibers IEEE Photonics Conference (PHO) Boucher, K. J., Jan, C., Kahn, J. M., Wilde, J. P., Solgaard, O. IEEE. 2011: 713–714

View details for Web of Science ID 000299750700357

Comparison of Multi-Carrier and Single-Carrier Intensity Modulation Techniques for Indoor Optical Wireless Links IEEE Photonics Conference (PHO) Barros, D. J., Kahn, J. M., Wilson, S. K. IEEE. 2011: 294–295

View details for Web of Science ID 000299750700148

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

View details for DOI 10.1109/JLT.2010.2058092

View details for Web of Science ID 000283183600001

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

View details for Web of Science ID 000281054400018

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

View details for DOI 10.1109/JLT.2010.2051795

View details for Web of Science ID 000282544200001

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

View details for DOI 10.1109/JLT.2010.2048999

View details for Web of Science ID 000278813000001

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

View details for DOI 10.1109/JLT.2009.2028245

View details for Web of Science ID 000274212400002

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 Conference on Optical Fiber Communication (OFC)/Collocated National Fiber Optic Engineers (NFOEC) Barros, D. J., Kahn, J. M. IEEE. 2010

View details for Web of Science ID 000287574100245

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 Conference on Atmospheric and Oceanic Propagation of Electromagnetic Waves IV Belmonte, A., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2010

View details for DOI 10.1117/12.845069

View details for Web of Science ID 000284396600001

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

Principal Modes in Multimode Fiber: Modeling and Compensation of Dispersion Shemirani, M., B., Kahn, J., M. VDM Verlag, Saarbrücken, Germany. 2010: 1

Rate-Adaptive Coding for Optical Fiber Transmission Systems Gho, G., H., Kahn, J., M. 2010

Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links Globecom Workshops Belmonte, A., Kahn, J. M. IEEE. 2010: 1026–1030

View details for Web of Science ID 000291611300194

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

View details for DOI 10.1109/JLT.2009.2036684

View details for Web of Science ID 000272480900003

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

View details for DOI 10.1109/JLT.2009.2036683

View details for Web of Science ID 000272480900002

Higher-Order Modal Dispersion in Graded-Index Multimode Fiber JOURNAL OF LIGHTWAVE TECHNOLOGY Shemirani, M. B., Kahn, J. M. 2009; 27 (23): 5461-5468

View details for DOI 10.1109/JLT.2009.2030146

View details for Web of Science ID 000271020300001

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

View details for DOI 10.1109/JLT.2008.929416

View details for Web of Science ID 000267994200033

Optical Modulator Optimization for Orthogonal Frequency-Division Multiplexing JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2009; 27 (13): 2370-2378

View details for DOI 10.1109/JLT.2008.2010002

View details for Web of Science ID 000267994200011

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

View details for DOI 10.1109/JLT.2008.2005066

View details for Web of Science ID 000267715200001

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 Conference on Optical Fiber Communication (OFC 2009) Wilde, J. P., Yoffe, G. W., Kahn, J. M. IEEE. 2009: 348–350

View details for Web of Science ID 000274764200116

Principles of Digital Coherent Receivers for Optical Communications Kahn, J., M., Ip, E. 2009

Nonlinear Impairment Compensation using Backpropagation Optical Fibre, New Developments Ip, E., Kahn, J., M. edited by Lethien, C. In-Tech, Vienna Austria. 2009: 1

Fundamental Limits on Diversity Coherent Reception on Atmospheric Optical Channels Belmonte, A., Kahn, J., M. 2009

Addendum to: Feedforward Carrier Recovery for Coherent Optical Communications J. of Lightwave Technol. Ip, E., Kahn, J., M. 2009; 27 (13): 2552-2553

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

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

View details for Web of Science ID 000262200700082

Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2008; 26 (17-20): 3416-3425

View details for DOI 10.1109/JLT.2008.927791

View details for Web of Science ID 000262657200049

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

On the Statistics of Intrachannel Four-Wave Mixing in Phase-Modulated Optical Communication Systems Conference on Optical Fiber Communications/National Fiber Optic Engineers Conference Lau, A. P., Rabbani, S., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2008: 2128–35

View details for DOI 10.1109/JLT.2008.923227

View details for Web of Science ID 000260874000045

Lattice codes for amplified direct-detection optical systems IEEE TRANSACTIONS ON COMMUNICATIONS Mao, W., Kahn, J. M. 2008; 56 (7): 1137-1145

View details for DOI 10.1109/TCOMM.2008.040340

View details for Web of Science ID 000257825000015

Optimized Dispersion Compensation Using Orthogonal Frequency-Division Multiplexing JOURNAL OF LIGHTWAVE TECHNOLOGY Barros, D. J., Kahn, J. M. 2008; 26 (13-16): 2889-2898

View details for DOI 10.1109/JLT.2008.925051

View details for Web of Science ID 000260874000138

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

View details for DOI 10.1109/JLT.2008.917324

View details for Web of Science ID 000256971400030

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 34th European Conference on Optical Communication (ECOC) Ip, E., Buechter, D., Langrock, C., Kahn, J. M., Herrmann, H., Sohler, W., Fejer, M. M. IEEE. 2008

View details for Web of Science ID 000300411200150

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

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

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

Performance of Synchronous Receivers using Atmospheric Compensation Tech-niques Optics Express Belmonte, A., Kahn, J., M. 2008; 16 (18): 14151-14162

Compensation of Dispersion and Nonlinearity in WDM Transmission using Simplified Digital Backpropagation IEEE/LEOS Summer Topical Meetings Ip, E., Lau, A. P., Barros, D. J., Kahn, J. M. IEEE. 2008: 123–124

View details for Web of Science ID 000260073000062

On the statistics of intra-channel four-wave mixing in phase-modulated systems Conference on Optical Fiber Communications/National Fiber Optic Engineers Conference Lau, A. P., Rabbani, S., Kahn, J. M. OPTICAL SOC AMERICA. 2008: 154–156

View details for Web of Science ID 000258857700052

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

View details for DOI 10.1109/JLT.2007.905217

View details for Web of Science ID 000250846000015

Feedforward carrier recovery for coherent optical communications JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2007; 25 (9): 2675-2692

View details for DOI 10.1109/JLT.2007.902118

View details for Web of Science ID 000249350000047

Digital equalization of chromatic dispersion and polarization mode dispersion JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2007; 25 (8): 2033-2043

View details for DOI 10.1109/JLT.2007.900889

View details for Web of Science ID 000248640400013

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

View details for DOI 10.1109/LPT.2007.901437

View details for Web of Science ID 000248671600066

Advanced Modulation Formats and Digital Signal Processing in Optical Communications Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference Kahn, J. M., Ip, E. IEEE. 2007: 199–200

View details for Web of Science ID 000268751000100

Compensating Multimode Fiber Dispersion using Adaptive Optics Kahn, J., M. 2007

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 IEEE LEOS Summer Topical Meeting 2007 Lau, A. P., Kahn, J. M. IEEE. 2007: 53–54

View details for Web of Science ID 000252102000027

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

View details for DOI 10.1109/LPT.2006.887373

View details for Web of Science ID 000243173300107

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

View details for DOI 10.1109/JLT.2005.863285

View details for Web of Science ID 000236056900028

Power spectra of return-to-zero optical signals JOURNAL OF LIGHTWAVE TECHNOLOGY Ip, E., Kahn, J. M. 2006; 24 (3): 1610-1618

View details for DOI 10.1109/JLT.2005.863328

View details for Web of Science ID 000236056900060

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

View details for DOI 10.1109/JMEMS.2005.863736

View details for Web of Science ID 000235453000003

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

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

View details for DOI 10.1109/JLT.2005.859428

View details for Web of Science ID 000234417100017

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

View details for DOI 10.1109/LPT.2005.856435

View details for Web of Science ID 000232149600008

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 Topical Meeting on Optical Communication Theory and Techniques Kahn, J. M., Ho, K. P. SPRINGER. 2005: 13–20

View details for Web of Science ID 000225381700002

Dispersion limitations in optical systems using offset DPSK modulation Topical Meeting on Optical Communication Theory and Techniques Wang, J., Kahn, J. M. SPRINGER. 2005: 173–179

View details for Web of Science ID 000225381700020

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

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

View details for DOI 10.1109/LPT.2004.833033

View details for Web of Science ID 000223497700059

Conventional DPSK versus symmetrical DPSK: Comparison of dispersion tolerances IEEE PHOTONICS TECHNOLOGY LETTERS Wang, J., Kahn, J. M. 2004; 16 (6): 1585-1587

View details for DOI 10.1109/LPT.2004.827415

View details for Web of Science ID 000221578300055

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

View details for DOI 10.1109/LPT.2004.826222

View details for Web of Science ID 000221064200058

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

View details for DOI 10.1109/JSTQE.2004.826575

View details for Web of Science ID 000221857600004

Electronic compensation technique to mitigate nonlinear phase noise JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K. P., Kahn, J. M. 2004; 22 (3): 779-783

View details for Web of Science ID 000220633800010

Spectrum of externally modulated optical signals JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K. P., Kahn, J. M. 2004; 22 (2): 658-663

View details for DOI 10.1109/JLT.2004.824453

View details for Web of Science ID 000220443800043

Free-space heterochronous imaging reception of multiple optical signals IEEE TRANSACTIONS ON COMMUNICATIONS Mao, W., Kahn, J. M. 2004; 52 (2): 269-279

View details for DOI 10.1109/TCOMM.2003.822755

View details for Web of Science ID 000220018700017

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

View details for DOI 10.1109/JLT.2003.822101

View details for Web of Science ID 000220443800006

Free-space Heterochronous Imaging Reception of Multiple Optical Signals IEEE Trans. on Commun. Mao, W., Kahn, J., M. 2004; 52 (2): 269-279

Equalization of modal dispersion in multimode fiber using spatial light modulators IEEE Global Telecommunications Conference (GLOBECOM 04) Alon, E., Stojanovic, V., Kahn, J. M., Boyd, S., Horowitz, M. IEEE. 2004: 1023–1029

View details for Web of Science ID 000226689900195

Dispersion Limitations in Optical Systems using Offset DPSK Modulation Wang, J., Kahn, J., M. 2004

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

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

Performance bounds for coded free-space optical communications through atmospheric turbulence channels IEEE International Conference on Communication Zhu, X. M., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2003: 1233–39

View details for DOI 10.1109/TCOMM.2003.815052

View details for Web of Science ID 000184789600002

Corner-cube retroreflectors based on structure-assisted assembly for free-space optical communication JOURNAL OF MICROELECTROMECHANICAL SYSTEMS Zhou, L. X., Kahn, J. M., Pister, K. S. 2003; 12 (3): 233-242

View details for DOI 10.1109/JMEMS.2003.809956

View details for Web of Science ID 000183356300002

Queueing models of optical delay lines in synchronous and asynchronous optical packet-switching networks OPTICAL ENGINEERING Zhu, X. M., Kahn, J. M. 2003; 42 (6): 1741-1748

View details for DOI 10.1117/1.1572500

View details for Web of Science ID 000183373500030

Mitigation of turbulence-induced scintillation noise in free-space optical links using temporal-domain detection techniques IEEE PHOTONICS TECHNOLOGY LETTERS Zhu, X. M., Kahn, J. M., Wang, J. 2003; 15 (4): 623-625

View details for DOI 10.1109/LPT.2003.809305

View details for Web of Science ID 000181868900044

Markov chain model in maximum-likelihood sequence detection for free-space optical communication through atmospheric turbulence channels IEEE TRANSACTIONS ON COMMUNICATIONS Zhu, X. M., KAHN, J. A. 2003; 51 (3): 509-516

View details for DOI 10.1109/TCOMM.2003.809787

View details for Web of Science ID 000182341900025

Two-axis scanning mirror for free-space optical communication between UAVs IEEE/LEOS International Conference on Optical MEMS Zhou, L., Last, M., Milanovic, V., Kahn, J. M., Pister, K. S. IEEE. 2003: 157–158

View details for Web of Science ID 000185581900076

Communication techniques to mtigate atmospheric turbulence in free-space optical links 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society Zhu, X. M., Kahn, J. M. IEEE. 2003: 89–90

View details for Web of Science ID 000188359700044

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

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

Free-space optical communication through atmospheric turbulence channels IEEE Global Telecommunications Conference (GLOBECOM 00) Zhu, X. M., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2002: 1293–1300

View details for DOI 10.1109/TCOMM.2002.800829

View details for Web of Science ID 000177644800016

Upper-bounding the capacity of optical IM/DD channels with multiple-subcarrier modulation and fixed bias using trigonometric moment space method IEEE TRANSACTIONS ON INFORMATION THEORY You, R., Kahn, J. M. 2002; 48 (2): 514-523

View details for Web of Science ID 000173485600012

Secure Free-Space Optical Communication Between Moving Platforms Kahn, J., M. 2002

Power-efficient multiple-subcarrier modulation scheme for optical wireless communications Conference on Optical Wireless Communications V Yu, B., Kahn, J. M., You, R. SPIE-INT SOC OPTICAL ENGINEERING. 2002: 41–53

View details for Web of Science ID 000180753900005

Optical modeling of MEMS corner cube retroreflectors with misalignment and nonflatness IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS Zhu, X. M., Hsu, V. S., Kahn, J. M. 2002; 8 (1): 26-32

View details for Web of Science ID 000174519300005

Pilot-symbol assisted modulation for correlated turbulent free-space optical channels Conference on Free-Space Laser Communication and Laser Imaging Zhu, X. M., Kahn, J. M. SPIE-INT SOC OPTICAL ENGINEERING. 2002: 138–145

View details for Web of Science ID 000175177000014

Advanced modulation and signal processing techniques for Gb/s optical transmission systems 1st Annual Conference on Optical Transmission Systems and Equipment for WDM Networking Ralston, J. D., Kahn, J. M., Ho, K. P. SPIE-INT SOC OPTICAL ENGINEERING. 2002: 24–31

View details for Web of Science ID 000178481900003

Advanced modulation and signal processing techniques for 40 Gb/s optical transmission systems Conference on Active and Passive Optical Components for WDM Communications II Ralston, J. D., Kahn, J. M., Ho, K. P. SPIE-INT SOC OPTICAL ENGINEERING. 2002: 600–607

View details for Web of Science ID 000178481700068

The role of electronic modulation and signal processing in next generation fiber transport 15th Annual Meeting of the IEEE-Lasers-and-Electro-Optics-Society Ralston, J. D., Kahn, J. M., Ho, K. P. IEEE. 2002: 432–433

View details for Web of Science ID 000179772700214

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

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

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

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

Assembled corner-cube retroreflector quadruplet 15th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2002) Zhou, L. X., Pister, K. S., Kahn, J. M. IEEE. 2002: 556–559

View details for Web of Science ID 000174908700136

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

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

Spectrally Efficient and Impairment-Robust Modulation Techniques for 40 Gb/s Optical Transmission Systems Ralston, J., D., Kahn, J., M., Ho, K., P. 2002

Average power reduction techniques for multiple-subcarrier intensity-modulated optical signals IEEE International Conference on Communications You, R., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2001: 2164–71

View details for Web of Science ID 000173068700018

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-sub carrier modulation with fixed bias 2001 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-10, CONFERENCE RECORD You, R., Kahn, J. M. 2001: 2757-2762

View details for Web of Science ID 000173159000524

Pairwise codeword error probability for coded free-space optical communication through atmospheric turbulence channels 2001 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-10, CONFERENCE RECORD Zhu, X. M., Kahn, J. M. 2001: 161-164

View details for Web of Science ID 000173159000033

Free-space heterochronous Imaging reception of multiple optical signals 35th Asilomar Conference on Signals, Systems and Computers Mao, W., Kahn, J. M. IEEE. 2001: 18–22

View details for Web of Science ID 000176951500004

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

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 multibeam transmitters and imaging diversity receivers IEEE International Conference on Global Communications (GLOBECOM) Djahani, P., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2000: 2077–88

View details for Web of Science ID 000165981200018

Emerging challenges: Mobile networking for "Smart Dust" JOURNAL OF COMMUNICATIONS AND NETWORKS Kahn, J. M., Katz, R. H., Pister, K. S. 2000; 2 (3): 188-196

View details for Web of Science ID 000089858400003

Angle diversity for nondirected wireless infrared communication IEEE TRANSACTIONS ON COMMUNICATIONS Carruthers, J. B., Kahn, J. M. 2000; 48 (6): 960-969

View details for Web of Science ID 000088208800012

Capacity Scaling in Dual Antenna Array Wireless Systems Tse, D., Chuah, C., Kahn, J., M. 2000

Average power reduction techniques for multiple-subcarrier intensity-modulated optical signals ICC 2000: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CONFERENCE RECORD, VOLS 1-3 You, R., Kahn, J. M. 2000: 1620-1627

View details for Web of Science ID 000089018200315

Maximum-likelihood spatial-diversity reception on correlated turbulent free-space optical channels IEEE Global Telecommunications Conference (GLOBECOM 00) Zhu, X. M., Kahn, J. M. IEEE. 2000: 1237–1241

View details for Web of Science ID 000166939500232

Maximum-Likelihood Spatial-Diversity Reception on Correlated Turbulent Free-Space Optical Channels Zhu, X., Kahn, J., M. 2000

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

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

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

Average Power Reduction Techniques for Multiple-Subcarrier Intensity-Modulated Opti-cal Signals You, R., Kahn, J., M. 2000

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

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

BER Performance of Turbo-Coded PPM CDMA Systems on Optical Fiber J. Lightwave Technol. Ohtsuki, T., Kahn, J., M. 2000; 18 (12): 1776-1784

Decision-feedback equalization of pulse-position modulation on measured nondirected indoor infrared channels ICC 96 Meeting Audeh, M. D., Kahn, J. M., Barry, J. R. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 1999: 500–503

View details for Web of Science ID 000080420900006

Coding and equalization for PPM on wireless infrared channels IEEE TRANSACTIONS ON COMMUNICATIONS Lee, D. C., Kahn, J. M. 1999; 47 (2): 255-260

View details for Web of Science ID 000079208000013

Differential Pulse-Position Modulation for Power-Efficient Optical Communication IEEE Trans. on Commun. Shiu, D., Kahn, J., M. 1999; 47 (8): 1201-1210

Analysis of infrared wireless links employing multi-beam transmitters and imaging diversity receivers IEEE Global Communications Conference (GLOBECOM 99) Djahani, P., Kahn, J. M. IEEE. 1999: 497–504

View details for Web of Science ID 000089882700092

Effect of Non-Reciprocity on Infrared Wireless Local-Area Networks Chow, F., 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

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

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

Analysis of Infrared Wireless Links Employing Multi-Beam Transmitters and Imaging Diversity Receivers Djahani, P., 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

Coding and Equalization for PPM on Wireless Infrared Channels IEEE Trans. on Commun. Lee, D., C., Kahn, J., M. 1999; 47 (2): 255-260

Rate-Adaptive Modulation Techniques for Infrared Wireless Communications Diana, L., Kahn, J., M. 1999

Shaping and Non-Equiprobable Signaling for Intensity-Modulated Signals IEEE Trans. on Information Theory Shiu, D., Kahn, J., M. 1999; 45: 2661-2668

Imaging diversity receivers for high-speed infrared wireless communication IEEE COMMUNICATIONS MAGAZINE Kahn, J. M., You, R., Djahani, P., Weisbin, A. G., Teik, B. K., Tang, A. 1998; 36 (12): 88-94

View details for Web of Science ID 000077446800012

Joint design of a channel-optimized quantizer and multicarrier modulation IEEE International Conference on Communications Ho, K. P., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 1998: 1254–57

View details for Web of Science ID 000076479700003

Experimental 25-Mb/s Wireless Infrared Link Using 4-PPM with Scalar Decision- Feedback Equalization Lee, D., C., Kahn, J., M. 1998

Experimental 25-Mb/s wireless infrared link using 4-PPM with scalar decision-feedback equalization IEEE International Conference on Communications Lee, D. C., Kahn, J. M. IEEE. 1998: 26–30

View details for Web of Science ID 000074756100006

Coding and equalization for PPM on wireless infrared channels IEEE Global Telecommunications Conference (GLOBECOM 98) Lee, D. C., Kahn, J. M. IEEE. 1998: 201–206

View details for Web of Science ID 000081660200035

Angle diversity for nondirected wireless infrared communication IEEE International Conference on Communications Carruthers, J. B., Kahn, J. M. IEEE. 1998: 1665–1670

View details for Web of Science ID 000074756100315

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

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

Joint Design of Channel-Optimized Quantizer and Multicarrier Modulation IEEE Trans. on Commun. Ho, K., P., Kahn, J., M. 1998; 46 (10): 1254-1257

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

Modeling of nondirected wireless infrared channels IEEE ICC 96 Meeting Carruthers, J. B., Kahn, J. M. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 1997: 1260–68

View details for Web of Science ID A1997YA50800017

Channel reuse strategies for indoor infrared wireless communications IEEE TRANSACTIONS ON COMMUNICATIONS Marsh, G. W., Kahn, J. M. 1997; 45 (10): 1280-1290

View details for Web of Science ID A1997YA50800019

Trellis-coded pulse-position modulation for indoor wireless infrared communications IEEE TRANSACTIONS ON COMMUNICATIONS Lee, D. C., Kahn, J. M., Audeh, M. D. 1997; 45 (9): 1080-1087

View details for Web of Science ID A1997XW38700013

Wireless infrared communications PROCEEDINGS OF THE IEEE Kahn, J. M., Barry, J. R. 1997; 85 (2): 265-298

View details for Web of Science ID A1997WJ34200006

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

View details for Web of Science ID A1997WC61700006

Wireless Infrared Communications Kahn, J., M., Barry, J., R. 1997

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

View details for Web of Science ID A1996WJ04900005

Performance evaluation of experimental 50-Mb/s diffuse infrared wireless link using on-off keying with decision-feedback equalization IEEE TRANSACTIONS ON COMMUNICATIONS Marsh, G. W., Kahn, J. M. 1996; 44 (11): 1496-1504

View details for Web of Science ID A1996VU30900016

Optimal predistortion of gaussian inputs for clipping channels IEEE TRANSACTIONS ON COMMUNICATIONS Ho, K. P., Kahn, J. M. 1996; 44 (11): 1505-1513

View details for Web of Science ID A1996VU30900017

Transmission of analog signals using multicarrier modulation: A combined source-channel coding approach IEEE TRANSACTIONS ON COMMUNICATIONS Ho, K. P., Kahn, J. M. 1996; 44 (11): 1432-1443

View details for Web of Science ID A1996VU30900010

Performance of pulse-position modulation on measured non-directed indoor infrared channels IEEE TRANSACTIONS ON COMMUNICATIONS Audeh, M. D., Kahn, J. M., Barry, J. R. 1996; 44 (6): 654-659

View details for Web of Science ID A1996UQ22400005

Methods for crosstalk measurement and reduction in dense WDM systems JOURNAL OF LIGHTWAVE TECHNOLOGY Ho, K. P., Kahn, J. M. 1996; 14 (6): 1127-1135

View details for Web of Science ID A1996UT34600023

Multiple-subcarrier modulation for nondirected wireless infrared communication IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Carruthers, J. B., Kahn, J. M. 1996; 14 (3): 538-546

View details for Web of Science ID A1996UE32500016

Effect of electronic-ballast fluorescent lighting on wireless infrared links 1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96) Narasimhan, R., Audeh, M. D., Kahn, J. M. IEEE. 1996: 1213–1219

View details for Web of Science ID A1996BG05Y00227

Channel reuse strategies for indoor infrared wireless communications IEEE GLOBECOM 1996 - Communications: The Key to Global Prosperity Marsh, G. W., Kahn, J. M. IEEE. 1996: 1597–1602

View details for Web of Science ID A1996BH62N00297

Combined source-channel coding using channel-optimized quantizer and multicarrier modulation 1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96) Ho, K. P., Kahn, J. M. IEEE. 1996: 1323–1327

View details for Web of Science ID A1996BG05Y00247

Modeling of nondirected wireless infrared channels 1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96) Carruthers, J. B., Kahn, J. M. IEEE. 1996: 1227–1231

View details for Web of Science ID A1996BG05Y00229

On models of clipping distortion for lightwave CATV systems IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K. P., Kahn, J. M. 1996; 8 (1): 125-126

View details for Web of Science ID A1996TN50000043

Wireless infrared communication links using multi-beam transmitters and imaging receivers 1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96) Tang, A. P., Kahn, J. M., Ho, K. P. IEEE. 1996: 180–186

View details for Web of Science ID A1996BG05Y00034

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

Decision-feedback equalization of pulse-position modulation on measured non-directed indoor infrared channels 1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96) Audeh, M. D., Kahn, J. M., Barry, J. R. IEEE. 1996: 1220–1226

View details for Web of Science ID A1996BG05Y00228

Diffractive Spot-Array Generation Using Multimode Surface-Emitting Lasers and Light-Emitting Diodes Hoch, J., S., Grot, A., Kahn, J., M. 1996

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

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

Trellis-coded pulse-position modulation for indoor wireless infrared communications 7th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 96) Lee, D. C., Kahn, J. M., Audeh, M. D. IEEE. 1996: 349–353

View details for Web of Science ID A1996BH25X00074

Modeling of Non-Directed Wireless Infrared Channels Carruthers, J., B., 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

EXACT PROBABILITY-DENSITY FUNCTION FOR PHASE-MEASUREMENT INTERFEROMETRY JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION Ho, K. P., Kahn, J. M. 1995; 12 (9): 1984-1989

View details for Web of Science ID A1995RR75400017

LINK DESIGN FOR NONDIRECTED WIRELESS INFRARED COMMUNICATIONS APPLIED OPTICS Barry, J. R., Kahn, J. M. 1995; 34 (19): 3764-3776

Abstract

We optimize the design of a short-range communication system using nondirected line-of-sight IR radiation. We propose a receiver structure comprising a spherical thin-film optical filter and a truncated spherical lens that can significantly outperform an optimized planar-filter system. We can make the passband of the spherical filter arbitrarily narrow without constraining the field of view by using an arbitrarily large filter radius. We argue that a truncation angle of 90° maximizes the receiver field of view when a spherical filter is used. We jointly optimize the transmitter radiation pattern and receiver optical components. Numerical results show that 269 mW of transmitted signal power is sufficient to achieve 100 Mbit/s throughout a 4-m-radius cell with high background irradiance.

View details for Web of Science ID A1995RE61500028

View details for PubMedID 21052199

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

View details for Web of Science ID A1995RC61900013

COMPOUND PARABOLIC CONCENTRATORS FOR NARROW-BAND WIRELESS INFRARED RECEIVERS OPTICAL ENGINEERING Ho, K. P., Kahn, J. M. 1995; 34 (5): 1385-1395

View details for Web of Science ID A1995QX17900018

EXPERIMENTAL CHARACTERIZATION OF NON-DIRECTED INDOOR INFRARED CHANNELS IEEE TRANSACTIONS ON COMMUNICATIONS Kahn, J. M., Krause, W. J., Carruthers, J. B. 1995; 43 (2-4): 1613-1623

View details for Web of Science ID A1995QV15700057

High-Speed Wireless Infrared Communications presented at 19th IEEE Computer Elements Work-shop, Vail, CO Kahn, J., M. 1995

Crosstalk measurement and reduction in dense WDM systems using subcarrier tone channel identification and linear cancellation 1995 IEEE International Conference on Communications - Communications: Gateway to Globalization Ho, K. P., Kahn, J. M. IEEE. 1995: 287–291

View details for Web of Science ID A1995BD72P00054

Exact Probability Density Function for Phase-Measurement Interferometry J. Opt. Soc. Am. A Ho, K., P., Kahn, J., M. 1995; 12 (9): 1984-1989

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

Performance of pulse-position modulation with trellis-coded modulation on non-directed indoor infrared channels IEEE Global Telecommunications Conference Lee, D. C., Audeh, M. D., Kahn, J. M. IEEE. 1995: 1830–1834

View details for Web of Science ID A1995BF42B00337

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

Combined Source-Channel Coding Using Multicarrier Modulation Ho, K., P., Kahn, J., M. 1995

Link Design for Non-Directed Wireless Infrared Communications Applied Optics Barry, J., R., Kahn, J., M. 1995; 34 (19): 3764-3776

Performance of PPM with maximum-likelihood sequence detection on measured non-directed indoor infrared channels 1995 IEEE International Conference on Communications - Communications: Gateway to Globalization Audeh, M. D., Kahn, J. M., Barry, J. R. IEEE. 1995: 1177–1181

View details for Web of Science ID A1995BD72P00223

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

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 1994 IEEE International Conference on Communications (SUPERCOMM/ICC 94): Serving Humanity Through Communications Audeh, M. D., Kahn, J. M. IEEE. 1994: 660–664

View details for Web of Science ID A1994BB15C00124

50-MB/S DIFFUSE INFRARED FREE-SPACE LINK USING ON-OFF KEYING WITH DECISION-FEEDBACK EQUALIZATION 5th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 94) Marsh, G. W., Kahn, J. M. I O S PRESS. 1994: 1086–1089

View details for Web of Science ID A1994BB86S00207

50-MB/S DIFFUSE INFRARED FREE-SPACE LINK USING ON-OFF KEYING WITH DECISION-FEEDBACK EQUALIZATION 28th Asilomar Conference on Signals, Systems and Computers Marsh, G. W., Kahn, J. M. IEEE COMPUTER SOC. 1994: 74–77

View details for Web of Science ID A1994BC60P00016

MUTLIPLE-SUBCARRIER MODULATION FOR NON-DIRECTED WIRELESS INFRARED COMMUNICATION 1994 IEEE GLOBECOM - Communications, the Global Bridge Carruthers, J. B., Kahn, J. M. IEEE. 1994: 1055–1059

View details for Web of Science ID A1994BC88U00198

Channel Compression in Subcarrier-Multiplexed Lightwave Systems Ho, K., P., Kahn, J., M. 1994

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

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

EQUALIZATION TECHNIQUE TO REDUCE CLIPPING-INDUCED NONLINEAR DISTORTION IN SUBCARRIER-MULTIPLEXED LIGHTWAVE SYSTEMS IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K. P., Kahn, J. M. 1993; 5 (9): 1100-1103

View details for Web of Science ID A1993MH16500048

EXTERNAL OPTICAL FEEDBACK EFFECTS ON INTENSITY NOISE OF VERTICAL-CAVITY SURFACE-EMITTING LASERS IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K. P., Walker, J. D., Kahn, J. M. 1993; 5 (8): 892-895

View details for Web of Science ID A1993MC69400011

OPTICAL FREQUENCY COMB GENERATOR USING PHASE MODULATION IN AMPLIFIED CIRCULATING LOOP IEEE PHOTONICS TECHNOLOGY LETTERS Ho, K. P., Kahn, J. M. 1993; 5 (6): 721-725

View details for Web of Science ID A1993LK18200047

SIMULATION OF MULTIPATH IMPULSE-RESPONSE FOR INDOOR WIRELESS OPTICAL CHANNELS IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS Barry, J. R., Kahn, J. M., Krause, W. J., Lee, E. A., Messerschmitt, D. G. 1993; 11 (3): 367-379

View details for Web of Science ID A1993LJ35100010

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

REDUCTION OF FEEDBACK-INDUCED INTENSITY NOISE IN VERTICAL-CAVITY SURFACE-EMITTING LASER BY SUPERPOSITION OF HIGH-FREQUENCY CURRENT 6th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society (LEOS 93) Ho, K. P., Walker, J. D., Kahn, J. M. IEEE. 1993: 554–555

View details for Web of Science ID A1993BA47C00257

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

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

DESIGN OF HIGH-SPEED WIRELESS LINKS USING NON-DIRECTIONAL INFRARED RADIATION 3RD WORKSHOP ON THIRD GENERATION WIRELESS INFORMATION NETWORKS Kahn, J. M., Barry, J. R., Audeh, M. D., Lee, E. A., Messerschmitt, D. G. KLUWER ACADEMIC PUBLISHERS. 1993: 109–126

View details for Web of Science ID A1993BY07T00007

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

Simulation Tools for Free-Space Optical Interconnects Based on Computer-Generated Holograms Kahn, J., M., Hoch, J., S. 1993

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

CARRIER SYNCHRONIZATION FOR HOMODYNE AND HETERODYNE-DETECTION OF OPTICAL QUADRIPHASE-SHIFT KEYING JOURNAL OF LIGHTWAVE TECHNOLOGY Barry, J. R., Kahn, J. M. 1992; 10 (12): 1939-1951

View details for Web of Science ID A1992KR94900024

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

HIGH-SPEED NON-DIRECTIONAL INFRARED COMMUNICATION FOR WIRELESS LOCAL-AREA NETWORKS 26TH ASILOMAR CONF ON SIGNALS, SYSTEMS AND COMPUTERS Kahn, J. M., Barry, J. R., Krause, W. J., Audeh, M. D., Carruthers, J. B., Marsh, G. W., Lee, E. A., Messerschmitt, D. G. I E E E, COMPUTER SOC PRESS. 1992: 83–87

View details for Web of Science ID A1992BX93Y00017

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

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

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

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

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

Modeling of Indoor Free-Space Infrared Propaga-tion Barry, J., R., Kahn, J., M., Lee, E., A., Messerschmitt, D., G. 1991

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

Copper-Dihydrogen Acceptors in High-Purity Germanium Kahn, J., M., Haller, E., E., Falicov, L., M. 1986

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

A Shallow Hydrogen-Zinc Acceptor in Germa-nium, McMurray Jr., R., E., Haegel, N., M., Kahn, J., M., Haller, E., E. 1984

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

Linear Propagation Effects in Mode-Division Multiplexing Systems J. of Lightwave Technol. (Invited Paper). Ho, K., P., 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.

Coded Modulation for Fiber-Optic Networks IEEE Signal Processing Magazine. Beygi, L., Agrell, E., Kahn, J., M.

Joseph Kahn

Professor of Electrical Engineering

Web page: http://www-ee.stanford.edu/~jmk

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