Bio
Joseph M. Kahn is a Professor of Electrical Engineering at Stanford University. His research addresses communication and imaging through optical fibers, including modulation, detection, signal processing and spatial multiplexing. He received A.B. and Ph.D. degrees in Physics from U.C. Berkeley in 1981 and 1986. From 1987-1990, he was at AT&T Bell Laboratories, Crawford Hill Laboratory, in Holmdel, NJ. He was on the Electrical Engineering faculty at U.C. Berkeley from 1990-2003. In 2000, he co-founded StrataLight Communications, which was acquired by Opnext, Inc. in 2009. He received the National Science Foundation Presidential Young Investigator Award in 1991 and is a Fellow of the IEEE.
Administrative Appointments
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Chair, Academic Affairs Committee, Department of Electrical Engineering (2012 - Present)
Honors & Awards
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Fellow, IEEE (2000)
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Presidential Young Investigator, National Science Foundation (1991-1996)
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Hoover Faculty Scholar, Stanford University (2003-2005)
Professional Education
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PhD, University of California, Berkeley, Physics (1986)
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MS, University of California, Berkeley, Physics (1983)
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BA, University of California, Berkeley, Physics (1981)
2024-25 Courses
- Digital Communication
EE 379 (Win) - Introduction to Optical Fiber Communications
EE 247 (Aut) - Signals and Systems I
EE 102A (Win) -
Independent Studies (6)
- Master's Thesis and Thesis Research
EE 300 (Aut, Win, Spr) - Special Studies and Reports in Electrical Engineering
EE 191 (Aut, Win, Spr) - Special Studies and Reports in Electrical Engineering
EE 391 (Aut, Win, Spr) - Special Studies and Reports in Electrical Engineering (WIM)
EE 191W (Aut, Win, Spr) - Special Studies or Projects in Electrical Engineering
EE 190 (Aut, Win, Spr) - Special Studies or Projects in Electrical Engineering
EE 390 (Aut, Win, Spr)
- Master's Thesis and Thesis Research
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Prior Year Courses
2023-24 Courses
- Advanced Optical Fiber Communications
EE 348 (Aut) - Signals and Systems I
EE 102A (Win)
2022-23 Courses
- Digital Communication
EE 379 (Win) - Introduction to Optical Fiber Communications
EE 247 (Aut) - Signal Processing and Linear Systems I
EE 102A (Win)
2021-22 Courses
- Advanced Optical Fiber Communications
EE 348 (Aut) - Signal Processing and Linear Systems I
EE 102A (Win)
- Advanced Optical Fiber Communications
Stanford Advisees
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Doctoral Dissertation Reader (AC)
Aivar Abrashuly, Oguz Tolga Celik, Hongxiang Jia, Richelle Smith -
Doctoral Dissertation Advisor (AC)
Ethan Liang, Anirudh Vijay -
Master's Program Advisor
Evan Cheng, Ben Choi, Erika Hunting, Khubaib Khan, Edward Kim, Susan Li -
Doctoral (Program)
Mohammed Azzouz, Jonathan Fisher, Hongxiang Jia, Oleksiy Krutko, Louise Schul, Anirudh Vijay
All Publications
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Geometric Shaping for Distortion-Limited Intensity Modulation/Direct Detection Data Center Links
IEEE PHOTONICS JOURNAL
2023; 15 (6)
View details for DOI 10.1109/JPHOT.2023.3335398
View details for Web of Science ID 001130593700003
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Optimal Shaping for the Stokes Vector Receiver
JOURNAL OF LIGHTWAVE TECHNOLOGY
2023; 41 (22): 6884-6897
View details for DOI 10.1109/JLT.2023.3299306
View details for Web of Science ID 001114681000005
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Design of Mode-Locked Semiconductor Laser Comb-Based Analog Coherent Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2023; 41 (18): 5930-5941
View details for DOI 10.1109/JLT.2023.3273479
View details for Web of Science ID 001085215500016
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Efficient Integrated Multimode Amplifiers for Scalable Long-Haul SDM Transmission
JOURNAL OF LIGHTWAVE TECHNOLOGY
2023; 41 (15): 4989-5002
View details for DOI 10.1109/JLT.2023.3254305
View details for Web of Science ID 001037845700014
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Differential Edge Modulation Signaling for Low-Energy, High-Speed Wireline Communication
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
2023
View details for DOI 10.1109/TCSI.2023.3279231
View details for Web of Science ID 001005749400001
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Effect of Higher-Order Modal Dispersion in Direct-Detection Mode-Division-Multiplexed Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2023; 41 (6): 1670-1683
View details for DOI 10.1109/JLT.2022.3226704
View details for Web of Science ID 000946221800009
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Impact and Mitigation of Mode-Dependent Gain in Ultra-Long-Haul SDM Systems
IEEE. 2023
View details for Web of Science ID 001009232500334
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Phase Noise Analysis of Resonator-Enhanced Electro-Optic Comb-Based Analog Coherent Receivers
JOURNAL OF LIGHTWAVE TECHNOLOGY
2022; 40 (21): 7117-7128
View details for DOI 10.1109/JLT.2022.3200632
View details for Web of Science ID 000879047200015
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High-efficiency and broadband on-chip electro-optic frequency comb generators
NATURE PHOTONICS
2022
View details for DOI 10.1038/s41566-022-01059-y
View details for Web of Science ID 000847278700003
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Successive Interference Cancellation on Frequency-Selective Channels With Mode-Dependent Gain
JOURNAL OF LIGHTWAVE TECHNOLOGY
2022; 40 (12): 3729-3738
View details for DOI 10.1109/JLT.2022.3150355
View details for Web of Science ID 000808089600019
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Phase Retrieval-Based Coherent Receivers: Signal Design and Degrees of Freedom
JOURNAL OF LIGHTWAVE TECHNOLOGY
2022; 40 (5): 1296-1307
View details for DOI 10.1109/JLT.2021.3130651
View details for Web of Science ID 000766268400006
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Modal Multiplexing and Atmospheric Turbulence Mitigation in Free-Space Optical Communications
IEEE. 2022
View details for Web of Science ID 000925380500456
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Optimal modes for spatially multiplexed free-space communication in atmospheric turbulence
OPTICS EXPRESS
2021; 29 (26): 43556-43566
View details for DOI 10.1364/OE.442797
View details for Web of Science ID 000730136600098
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Modeling and Experimental Measurement of Power Efficiency for Power-Limited SDM Submarine Transmission Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2021; 39 (8): 2376–86
View details for DOI 10.1109/JLT.2021.3049709
View details for Web of Science ID 000633442200014
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External vs. Integrated Light Sources for Intra-Data Center Co-Packaged Optical Interfaces
JOURNAL OF LIGHTWAVE TECHNOLOGY
2021; 39 (7): 1984–96
View details for DOI 10.1109/JLT.2020.3043653
View details for Web of Science ID 000628977000010
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Coherent Data Center Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2021; 39 (3): 730–41
View details for DOI 10.1109/JLT.2020.3043951
View details for Web of Science ID 000612137500005
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Designing High-Performance Multimode Fibers Using Refractive Index Optimization
JOURNAL OF LIGHTWAVE TECHNOLOGY
2021; 39 (1): 233–42
View details for DOI 10.1109/JLT.2020.3022636
View details for Web of Science ID 000599498500027
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Experimental Characterization of Power Efficiency for Power-Limited SDM Submarine Transmission Systems
IEEE. 2021
View details for DOI 10.1109/ECOC48923.2020.9333332
View details for Web of Science ID 000662178500207
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High-efficiency and broadband electro-optic frequency combs using coupled lithium-niobate microresonators
IEEE. 2021
View details for Web of Science ID 000831479801005
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Phase Retrieval-Based Coherent Receivers
IEEE. 2021
View details for Web of Science ID 000698978300280
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Adaptive Coding and Modulation for Robust Optical Access Networks
JOURNAL OF LIGHTWAVE TECHNOLOGY
2020; 38 (8): 2242–52
View details for DOI 10.1109/JLT.2019.2963276
View details for Web of Science ID 000528521100017
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Effect of atmospheric turbulence on timing instability for partially reciprocal two-way optical time transfer links
PHYSICAL REVIEW A
2020; 101 (3)
View details for DOI 10.1103/PhysRevA.101.033843
View details for Web of Science ID 000522159300011
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Design of Efficient Resonator-Enhanced Electro-Optic Frequency Comb Generators
JOURNAL OF LIGHTWAVE TECHNOLOGY
2020; 38 (6): 1400–1413
View details for DOI 10.1109/JLT.2020.2973884
View details for Web of Science ID 000522169400034
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Adapting Mach-Zehnder Mesh Equalizers in Direct-Detection Mode-Division-Multiplexed Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2020; 38 (4): 723–35
View details for DOI 10.1109/JLT.2019.2952060
View details for Web of Science ID 000516613400004
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Impact of Polarization- and Mode-Dependent Gain on the Capacity of Ultra-Long-Haul Systems
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
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Impact and Mitigation of Polarization- or Mode-Dependent Gain in Ultra-Long-Haul Systems
IEEE. 2020
View details for Web of Science ID 000629119400142
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Data Center Links Beyond 100 Gb/s per Wavelength
IEEE. 2020
View details for Web of Science ID 000676346200437
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Two-Way Time and Frequency Transfer via Ground-to-Satellite Optical Communications Links
INST NAVIGATION. 2020: 207–15
View details for DOI 10.33012/2020.17300
View details for Web of Science ID 000544823000010
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Multi-Tb/s-per-Fiber Coherent Co-Packaged Optical Interfaces for Data Center Switches
JOURNAL OF LIGHTWAVE TECHNOLOGY
2019; 37 (13): 3401–12
View details for DOI 10.1109/JLT.2019.2916988
View details for Web of Science ID 000472158700029
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Importance of Amplifier Physics in Maximizing the Capacity of Submarine Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2019; 37 (9): 2076–85
View details for DOI 10.1109/JLT.2019.2897831
View details for Web of Science ID 000465030800027
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Broadband electro-optic frequency comb generation in a lithium niobate microring resonator
NATURE
2019; 568 (7752): 373-+
View details for DOI 10.1038/s41586-019-1008-7
View details for Web of Science ID 000464950700052
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Efficient Quantification and Simulation of Modal Dynamics in Multimode Fiber Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2019; 37 (8): 1813–25
View details for DOI 10.1109/JLT.2018.2889675
View details for Web of Science ID 000465027900008
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Broadband electro-optic frequency comb generation in a lithium niobate microring resonator.
Nature
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
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Mode-Multiplexed Transmission Within and Across Mode Groups of a Multimode-Fiber
IEEE. 2019
View details for Web of Science ID 000469837300291
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Coherent Co-packaged Optical Interfaces for Next-Generation Electrical Switches
IEEE. 2019
View details for Web of Science ID 000520481500204
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Modal Dynamics in Spatially Multiplexed Links
IEEE. 2019
View details for Web of Science ID 000469837300270
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Scaling SDM Optical Networks Using Full-Spectrum Spatial Switching
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
2018; 10 (12): 991–1004
View details for DOI 10.1364/JOCN.10.000991
View details for Web of Science ID 000454651400007
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Characterizing Mode-Dependent Loss and Gain in Multimode Components
JOURNAL OF LIGHTWAVE TECHNOLOGY
2018; 36 (18): 3815–23
View details for DOI 10.1109/JLT.2018.2851184
View details for Web of Science ID 000439619600002
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Data center links beyond 100 Gbit/s per wavelength
OPTICAL FIBER TECHNOLOGY
2018; 44: 69–85
View details for DOI 10.1016/j.yofte.2017.12.006
View details for Web of Science ID 000436785500009
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Measurement-Based Optimization of Channel Powers With Non-Gaussian Nonlinear Interference Noise
JOURNAL OF LIGHTWAVE TECHNOLOGY
2018; 36 (13): 2746–56
View details for DOI 10.1109/JLT.2018.2822719
View details for Web of Science ID 000432324800022
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Low-Complexity Implementation of Convex Optimization-Based Phase Retrieval
JOURNAL OF LIGHTWAVE TECHNOLOGY
2018; 36 (12): 2358–65
View details for DOI 10.1109/JLT.2018.2811755
View details for Web of Science ID 000428894700002
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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
2018; 36 (11): 2309
View details for DOI 10.1109/JLT.2018.2809584
View details for Web of Science ID 000443184300011
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Approaching fundamental limits to free-space communication through atmospheric turbulence
SPIE-INT SOC OPTICAL ENGINEERING. 2018
View details for DOI 10.1117/12.2299623
View details for Web of Science ID 000450860100010
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Stable Measurement of Effective Area in Coupled Multi-core Fiber
IEEE. 2018
View details for Web of Science ID 000437286300679
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DSP-Free Coherent Receivers for Data Center Links
IEEE. 2018
View details for Web of Science ID 000437286300234
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Data Center Links Beyond 100 Gbit/s per Wavelength
SPIE-INT SOC OPTICAL ENGINEERING. 2018
View details for DOI 10.1117/12.2292774
View details for Web of Science ID 000455780300020
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Improving the Capacity of Terrestrial and Submarine Systems via Channel Power Optimization
IEEE. 2018
View details for Web of Science ID 000462559300081
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Channel Power Optimization of WDM Systems Following Gaussian Noise Nonlinearity Model in Presence of Stimulated Raman Scattering
JOURNAL OF LIGHTWAVE TECHNOLOGY
2017; 35 (23): 5237–49
View details for DOI 10.1109/JLT.2017.2771719
View details for Web of Science ID 000417737900010
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Optical MIMO Signal Processing for Direct-Detection Mode-Division Multiplexing
IEEE. 2017
View details for Web of Science ID 000427031500329
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Scaling Optical Networks Using Full-Spectrum Spatial Switching
IEEE. 2017
View details for Web of Science ID 000425245100013
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Sensitivity Improvement in 100 Gb/s-per-Wavelength Links Using Semiconductor Optical Amplifiers or Avalanche Photodiodes
JOURNAL OF LIGHTWAVE TECHNOLOGY
2016; 34 (23): 5542-5553
View details for DOI 10.1109/JLT.2016.2620139
View details for Web of Science ID 000390847100024
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Direct-detection mode-division multiplexing in modal basis using phase retrieval
OPTICS LETTERS
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
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Space-time reference with an optical link
CLASSICAL AND QUANTUM GRAVITY
2016; 33 (13)
View details for DOI 10.1088/0264-9381/33/13/135007
View details for Web of Science ID 000378334600010
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Convex Channel Power Optimization in Nonlinear WDM Systems Using Gaussian Noise Model
JOURNAL OF LIGHTWAVE TECHNOLOGY
2016; 34 (13): 3212-3222
View details for DOI 10.1109/JLT.2016.2569073
View details for Web of Science ID 000379767000024
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Group Delay Management and Multiinput Multioutput Signal Processing in Mode-Division Multiplexing Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2016; 34 (11): 2867-2880
View details for DOI 10.1109/JLT.2016.2530978
View details for Web of Science ID 000379751000032
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Modulation Schemes for Single-Laser 100 Gb/s Links: Multicarrier
JOURNAL OF LIGHTWAVE TECHNOLOGY
2015; 33 (24): 5122-5132
View details for DOI 10.1109/JLT.2015.2480700
View details for Web of Science ID 000366106900002
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Capacity limits of spatially multiplexed free-space communication
NATURE PHOTONICS
2015; 9 (12): 822-826
View details for DOI 10.1038/NPHOTON.2015.214
View details for Web of Science ID 000366150100015
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Delay Spread Reduction in Mode-Division Multiplexing: Mode Coupling Versus Delay Compensation
JOURNAL OF LIGHTWAVE TECHNOLOGY
2015; 33 (21): 4504-4512
View details for DOI 10.1109/JLT.2015.2475422
View details for Web of Science ID 000362581600004
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Design of flexible multi-mode fiber endoscope
OPTICS EXPRESS
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
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Modulation Schemes for Single-Laser 100 Gb/s Links: Single-Carrier
JOURNAL OF LIGHTWAVE TECHNOLOGY
2015; 33 (20): 4268-4277
View details for DOI 10.1109/JLT.2015.2470523
View details for Web of Science ID 000362364100010
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Long-Period Fiber Gratings for Mode Coupling in Mode-Division-Multiplexing Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2015; 33 (19): 4032-4038
View details for DOI 10.1109/JLT.2015.2459070
View details for Web of Science ID 000360505300009
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Performance of Direct-Detection Mode-Group-Division Multiplexing Using Fused Fiber Couplers
JOURNAL OF LIGHTWAVE TECHNOLOGY
2015; 33 (9): 1748-1760
View details for DOI 10.1109/JLT.2015.2392255
View details for Web of Science ID 000351352700008
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Roles of spectral and spatial aggregation in optical network scaling
Conference on Next-Generation Optical Communication - Components, Sub-Systems, and Systems IV
SPIE-INT SOC OPTICAL ENGINEERING. 2015
View details for DOI 10.1117/12.2082656
View details for Web of Science ID 000350275100006
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Array Receivers in Downlink Coherent Lasercom
Conference on Free-Space Laser Communication and Atmospheric Propagation XXVII
SPIE-INT SOC OPTICAL ENGINEERING. 2015
View details for DOI 10.1117/12.2079505
View details for Web of Science ID 000353710100005
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MIMO signal processing in mode-division multiplexing systems
Conference on Optical Metro Networks and Short-Haul Systems VII
SPIE-INT SOC OPTICAL ENGINEERING. 2015
View details for DOI 10.1117/12.2081299
View details for Web of Science ID 000354523400001
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Optical network scaling: roles of spectral and spatial aggregation
OPTICS EXPRESS
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
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Optical network scaling: roles of spectral and spatial aggregation.
Optics express
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
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Frequency-Derivative Measurement Technique for Dispersive Effects in Single-Mode Fiber Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (22): 3854-3861
View details for DOI 10.1109/JLT.2014.2358585
View details for Web of Science ID 000345573800010
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Wavelength-Selective Switches for Mode-Division Multiplexing: Scaling and Performance Analysis
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (22): 3724-3735
View details for DOI 10.1109/JLT.2014.2355812
View details for Web of Science ID 000343010400005
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Noise-reduction algorithms for optimization-based imaging through multi-mode fiber
OPTICS EXPRESS
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
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Noise-reduction algorithms for optimization-based imaging through multi-mode fiber.
Optics express
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
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Diversity-multiplexing tradeoff in mode-division multiplexing.
Optics letters
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
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Adaptive Modal Gain Equalization Techniques in Multi-Mode Erbium-Doped Fiber Amplifiers
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (11): 2133-2143
View details for DOI 10.1109/JLT.2014.2314746
View details for Web of Science ID 000337135900007
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Adaptive Frequency-Domain Equalization in Mode-Division Multiplexing Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (10)
View details for DOI 10.1109/JLT.2014.2303079
View details for Web of Science ID 000335922200001
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Variable-Bandwidth Superchannels Using Synchronized Colorless Transceivers
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (10): 1921-1929
View details for DOI 10.1109/JLT.2014.2310692
View details for Web of Science ID 000336316300001
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MIMO Signal Processing for Mode-Division Multiplexing [An overview of channel models and signal processing architectures]
IEEE SIGNAL PROCESSING MAGAZINE
2014; 31 (2): 25-34
View details for DOI 10.1109/MSP.2013.2290804
View details for Web of Science ID 000334676100006
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Coded Modulation for Fiber-Optic Networks [Toward better tradeoff between signal processing complexity and optical transparent reach]
IEEE SIGNAL PROCESSING MAGAZINE
2014; 31 (2): 93-103
View details for DOI 10.1109/MSP.2013.2290805
View details for Web of Science ID 000334676100012
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Linear Propagation Effects in Mode-Division Multiplexing Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (4): 614-628
View details for DOI 10.1109/JLT.2013.2283797
View details for Web of Science ID 000330127900007
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Optical Networking With Variable-Code-Rate Transceivers
JOURNAL OF LIGHTWAVE TECHNOLOGY
2014; 32 (2): 257-266
View details for DOI 10.1109/JLT.2013.2292298
View details for Web of Science ID 000328946400001
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Rate-Adaptive Coded Modulation for Fiber-Optic Communications
JOURNAL OF LIGHTWAVE TECHNOLOGY
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. 2014; 32 (2): 333-343
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Multimode Transmission Technologies
19th OptoElectronics and Communication Conference (OECC) / 39th Australian Conference on Optical Fibre Technology (ACOFT)
IEEE. 2014: 237–239
View details for Web of Science ID 000347188900090
- Optical Networking with Variable-Code-Rate Transceivers J. of Lightwave Technol. 2014; 32 (2): 257-266
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Coupled-Core Multi-Core Fibers for Spatial Multiplexing
IEEE PHOTONICS TECHNOLOGY LETTERS
2013; 25 (21): 2054-2057
View details for DOI 10.1109/LPT.2013.2280897
View details for Web of Science ID 000325690900007
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Sequential Optimization of Adaptive Arrays in Coherent Laser Communications
JOURNAL OF LIGHTWAVE TECHNOLOGY
2013; 31 (9): 1383-1387
View details for DOI 10.1109/JLT.2013.2250484
View details for Web of Science ID 000316406600004
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Effect of Mode Coupling on Signal Processing Complexity in Mode-Division Multiplexing
JOURNAL OF LIGHTWAVE TECHNOLOGY
2013; 31 (3): 423-431
View details for DOI 10.1109/JLT.2012.2234083
View details for Web of Science ID 000313364100001
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Resolution limits for imaging through multi-mode fiber
OPTICS EXPRESS
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
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Mode-Division Multiplexing Systems: Propagation Effects, Performance and Complexity
Conference on Optical Fiber Communication (OFC)/National Fiber Optic Engineers Conference (NFOEC)
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 2013
- Adaptive Control of Mode-Dependent Gain in Multi-Mode Erbium-Doped Fiber Amplifiers 2013
- Mode Coupling and its Impact on Spatially Multiplexed Systems Optical Fiber Telecommunications VI B: Systems and Networks edited by Kaminow, I., P., Li, T., Willner, A., E. Elsevier, Amsterdam. 2013: 1
- The Time-Reversed Twin Nature Photonics 2013; 7: 507-508
- Four-Fold Resolution Increase in Scan-Free Single-Fiber Endoscopic Imaging SU2P Symposium, Glasgow 2013
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Adaptive Control of Mode-Dependent Gain in Multi-Mode Erbium-Doped Fiber Amplifiers
IEEE-Photonics-Society Summer Topical Meeting
IEEE. 2013: 107–108
View details for Web of Science ID 000333963600050
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Design of Transmission Fibers and Doped Fiber Amplifiers for Mode-Division Multiplexing
IEEE PHOTONICS TECHNOLOGY LETTERS
2012; 24 (21): 1945-1948
View details for DOI 10.1109/LPT.2012.2218654
View details for Web of Science ID 000310336400001
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Delay-Spread Distribution for Multimode Fiber With Strong Mode Coupling
IEEE PHOTONICS TECHNOLOGY LETTERS
2012; 24 (21): 1906-1909
View details for DOI 10.1109/LPT.2012.2218280
View details for Web of Science ID 000310140000003
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Rate-Adaptive Modulation and Low-Density Parity-Check Coding for Optical Fiber Transmission Systems
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
2012; 4 (10): 760-768
View details for DOI 10.1364/JOCN.4.000760
View details for Web of Science ID 000310369200007
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Bandwidth-Scalable Long-Haul Transmission Using Synchronized Colorless Transceivers and Efficient Wavelength-Selective Switches
JOURNAL OF LIGHTWAVE TECHNOLOGY
2012; 30 (16): 2646-2660
View details for DOI 10.1109/JLT.2012.2203585
View details for Web of Science ID 000306919500002
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Adaptive control of input field to achieve desired output intensity profile in multimode fiber with random mode coupling
OPTICS EXPRESS
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
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Rate-Adaptive Modulation and Coding for Optical Fiber Transmission Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2012; 30 (12): 1818-1828
View details for DOI 10.1109/JLT.2012.2189435
View details for Web of Science ID 000302720400004
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Effect of fog on free-space optical links employing imaging receivers
OPTICS EXPRESS
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
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Comparison of Orthogonal Frequency-Division Multiplexing and Pulse-Amplitude Modulation in Indoor Optical Wireless Links
IEEE TRANSACTIONS ON COMMUNICATIONS
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 2012
- Multi-Carrier versus Single-Carrier Intensity Modulation Techniques for Indoor Optical Wireless Links 2012
- Field Conjugation Adaptive Arrays for Reliable Space Downlink Coherent Laser Communications 2012
- Mode Coupling Effects in Mode-Division-Multiplexed Systems 2012
- Design of Multi-Mode Erbium-Doped Fiber Amplifiers for Low Mode-Dependent Gain 2012
- Mode-Coupling Effects in Multimode Fibers 2012
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Mode Coupling in Coherent Mode-Division-Multiplexed Systems: Impact on Capacity and Signal Processing Complexity
46th Asilomar Conference on Signals, Systems and Computers
IEEE. 2012: 650–653
View details for Web of Science ID 000320768400120
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Frequency Diversity in Mode-Division Multiplexing Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2011; 29 (24): 3719-3726
View details for DOI 10.1109/JLT.2011.2173465
View details for Web of Science ID 000297943400002
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Statistics of Group Delays in Multimode Fiber With Strong Mode Coupling
JOURNAL OF LIGHTWAVE TECHNOLOGY
2011; 29 (21): 3119-3128
View details for DOI 10.1109/JLT.2011.2165316
View details for Web of Science ID 000296016100001
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Field Conjugation Adaptive Arrays in Free-Space Coherent Laser Communications
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
2011; 3 (11): 830-838
View details for DOI 10.1364/JOCN.3.000830
View details for Web of Science ID 000298177200002
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Mode-dependent loss and gain: statistics and effect on mode-division multiplexing
OPTICS EXPRESS
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
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Comparison of Orthogonal Frequency-Division Multiplexing and ON-OFF Keying in Direct-Detection Multimode Fiber Links
JOURNAL OF LIGHTWAVE TECHNOLOGY
2011; 29 (15): 2299-2309
View details for DOI 10.1109/JLT.2011.2159192
View details for Web of Science ID 000296700100001
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Principal Modes in Graded-Index Multimode Fiber in Presence of Spatial- and Polarization-Mode Coupling (vol 27, pg 1248, 2009)
JOURNAL OF LIGHTWAVE TECHNOLOGY
2011; 29 (12): 1901-1901
View details for DOI 10.1109/JLT.2011.2134831
View details for Web of Science ID 000291320000001
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Experimental demonstration of two methods for controlling the group delay in a system with photonic-crystal resonators coupled to a waveguide
OPTICS LETTERS
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
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Rate-Adaptive Coding for Optical Fiber Transmission Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2011; 29 (2): 222-233
View details for DOI 10.1109/JLT.2010.2099208
View details for Web of Science ID 000286385500007
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Rate-adaptive modulation and coding for optical fiber transmission systems
Conference on Coherent Optical Communication - Components, Subsystems, and Systems
SPIE-INT SOC OPTICAL ENGINEERING. 2011
View details for DOI 10.1117/12.881421
View details for Web of Science ID 000294061300007
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Performance Analysis of Atmospheric Field Conjugation Adaptive Arrays
Conference on Free-Space Laser Communication Technologies XXIII
SPIE-INT SOC OPTICAL ENGINEERING. 2011
View details for DOI 10.1117/12.873056
View details for Web of Science ID 000297975300021
- System Architecture for Bandwidth-Scalable OFDM Long-Haul Transmission 2011
- Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links 2011
- Bandwidth-Scalable OFDM Long-Haul Transmission 2011
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Spot Formation and Scanning Microscopy via Multimode Fibers
IEEE Photonics Conference (PHO)
IEEE. 2011: 713–714
View details for Web of Science ID 000299750700357
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Comparison of Multi-Carrier and Single-Carrier Intensity Modulation Techniques for Indoor Optical Wireless Links
IEEE Photonics Conference (PHO)
IEEE. 2011: 294–295
View details for Web of Science ID 000299750700148
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Adaptive Compensation of Multimode Fiber Dispersion by Control of Launched Amplitude, Phase, and Polarization
JOURNAL OF LIGHTWAVE TECHNOLOGY
2010; 28 (18): 2627-2639
View details for DOI 10.1109/JLT.2010.2058092
View details for Web of Science ID 000283183600001
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Capacity of coherent free-space optical links using diversity-combining techniques (vol 17, pg 12601, 2009)
OPTICS EXPRESS
2010; 18 (17): 17748-17748
View details for Web of Science ID 000281054400018
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Compensation of Multimode Fiber Dispersion by Optimization of Launched Amplitude, Phase, and Polarization
JOURNAL OF LIGHTWAVE TECHNOLOGY
2010; 28 (14): 2084-2095
View details for DOI 10.1109/JLT.2010.2051795
View details for Web of Science ID 000282544200001
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Comparison of Orthogonal Frequency-Division Multiplexing and On-Off Keying in Amplified Direct-Detection Single-Mode Fiber Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2010; 28 (12): 1811-1820
View details for DOI 10.1109/JLT.2010.2048999
View details for Web of Science ID 000278813000001
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Hiding Single Photons with Spread Spectrum Technology
PHYSICAL REVIEW LETTERS
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
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Fiber Impairment Compensation Using Coherent Detection and Digital Signal Processing
JOURNAL OF LIGHTWAVE TECHNOLOGY
2010; 28 (4): 502-519
View details for DOI 10.1109/JLT.2009.2028245
View details for Web of Science ID 000274212400002
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Efficiency of complex modulation methods in coherent free-space optical links
OPTICS EXPRESS
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
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OFDM vs. OOK with MLSD for IM/DD Systems
Conference on Optical Fiber Communication (OFC)/Collocated National Fiber Optic Engineers (NFOEC)
IEEE. 2010
View details for Web of Science ID 000287574100245
- Modulation of Photons and Biphotons 2010
- Rate-Adaptive Transmission Techniques for Optical Fiber Systems 2010
- Understanding the Performance of Atmospheric Free-Space Laser Communications Systems using Coherent Detection 2010
- Analysis of a Field-Conjugation Adaptive Array for Coherent Free-Space Optical Links 2010
- Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links 2010
- Rate-Adaptive Coding for Optical Fiber Transmission Systems 2010
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Understanding the performance of atmospheric free-space laser communications systems using coherent detection
Conference on Atmospheric and Oceanic Propagation of Electromagnetic Waves IV
SPIE-INT SOC OPTICAL ENGINEERING. 2010
View details for DOI 10.1117/12.845069
View details for Web of Science ID 000284396600001
- Principal Modes in Multimode Fiber: Modeling and Compensation of Dispersion VDM Verlag, Saarbrücken, Germany. 2010: 1
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Field Conjugation Adaptive Arrays in Atmospheric Coherent Optical Links
Globecom Workshops
IEEE. 2010: 1026–1030
View details for Web of Science ID 000291611300194
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Algorithms for Compensation of Multimode Fiber Dispersion Using Adaptive Optics
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (24): 5790-5799
View details for DOI 10.1109/JLT.2009.2036684
View details for Web of Science ID 000272480900003
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Experimental Comparison of Adaptive Optics Algorithms in 10-Gb/s Multimode Fiber Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (24): 5783-5789
View details for DOI 10.1109/JLT.2009.2036683
View details for Web of Science ID 000272480900002
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Higher-Order Modal Dispersion in Graded-Index Multimode Fiber
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (23): 5461-5468
View details for DOI 10.1109/JLT.2009.2030146
View details for Web of Science ID 000271020300001
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Capacity of coherent free-space optical links using diversity-combining techniques
OPTICS EXPRESS
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
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Feedforward Carrier Recovery for Coherent Optical Communications (vol25, pg 2675, 2007)
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (13): 2552-2553
View details for DOI 10.1109/JLT.2008.929416
View details for Web of Science ID 000267994200033
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Optical Modulator Optimization for Orthogonal Frequency-Division Multiplexing
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (13): 2370-2378
View details for DOI 10.1109/JLT.2008.2010002
View details for Web of Science ID 000267994200011
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Principal Modes in Graded-Index Multimode Fiber in Presence of Spatial- and Polarization-Mode Coupling
JOURNAL OF LIGHTWAVE TECHNOLOGY
2009; 27 (10): 1248-1261
View details for DOI 10.1109/JLT.2008.2005066
View details for Web of Science ID 000267715200001
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Capacity of coherent free-space optical links using atmospheric compensation techniques
OPTICS EXPRESS
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
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Frequency Noise Characterization of a Widely Tunable Narrow-Linewidth DFB Laser Array Source
Conference on Optical Fiber Communication (OFC 2009)
IEEE. 2009: 348–350
View details for Web of Science ID 000274764200116
- Principles of Digital Coherent Receivers for Optical Communications 2009
- Nonlinear Impairment Compensation using Backpropagation Optical Fibre, New Developments edited by Lethien, C. In-Tech, Vienna Austria. 2009: 1
- Fundamental Limits on Diversity Coherent Reception on Atmospheric Optical Channels 2009
- Addendum to: Feedforward Carrier Recovery for Coherent Optical Communications J. of Lightwave Technol. 2009; 27 (13): 2552-2553
- Principal Modes in Graded-Index Multimode Fibers 2009
- Effects of Atmospheric Compensation Techniques on the Performance of Synchronous Receivers 2009
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Coherent detection in optical fiber systems (vol 16, pg 753, 2008)
OPTICS EXPRESS
2008; 16 (26): 21943-21943
View details for Web of Science ID 000262200700082
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Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation
JOURNAL OF LIGHTWAVE TECHNOLOGY
2008; 26 (17-20): 3416-3425
View details for DOI 10.1109/JLT.2008.927791
View details for Web of Science ID 000262657200049
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Performance of synchronous optical receivers using atmospheric compensation techniques
OPTICS EXPRESS
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
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On the Statistics of Intrachannel Four-Wave Mixing in Phase-Modulated Optical Communication Systems
Conference on Optical Fiber Communications/National Fiber Optic Engineers Conference
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
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Lattice codes for amplified direct-detection optical systems
IEEE TRANSACTIONS ON COMMUNICATIONS
2008; 56 (7): 1137-1145
View details for DOI 10.1109/TCOMM.2008.040340
View details for Web of Science ID 000257825000015
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Optimized Dispersion Compensation Using Orthogonal Frequency-Division Multiplexing
JOURNAL OF LIGHTWAVE TECHNOLOGY
2008; 26 (13-16): 2889-2898
View details for DOI 10.1109/JLT.2008.925051
View details for Web of Science ID 000260874000138
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Compensation of multimode fiber dispersion using adaptive optics via convex optimization
JOURNAL OF LIGHTWAVE TECHNOLOGY
2008; 26 (9-12): 1295-1303
View details for DOI 10.1109/JLT.2008.917324
View details for Web of Science ID 000256971400030
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Coherent detection in optical fiber systems
OPTICS EXPRESS
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
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QPSK Transmission over Free-Space Link at 3.8 mu m using Coherent Detection with Wavelength Conversion
34th European Conference on Optical Communication (ECOC)
IEEE. 2008
View details for Web of Science ID 000300411200150
- Performance of Synchronous or Nonsynchronous Receivers Using Atmospheric Compensation Techniques 2008
- Compensation of Dispersion and Nonlinearity in WDM Transmission using Simplified Digital Backpropagation 2008
- Communication Techniques and Coding for Atmospheric Turbulence Channels Free-Space Laser Communications: Principles and Advances edited by Majumdar, A., K., Ricklin, J., C. Springer, New York. 2008: 1
- Compensation of Chromatic Dispersion and Nonlinearity using Simplified Digital Backpropagation 2008
- Increasing Optical Fiber Transmission Capacity Beyond Next-Generation Systems 2008
- Performance of Synchronous Receivers using Atmospheric Compensation Tech-niques Optics Express 2008; 16 (18): 14151-14162
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Compensation of Dispersion and Nonlinearity in WDM Transmission using Simplified Digital Backpropagation
IEEE/LEOS Summer Topical Meetings
IEEE. 2008: 123–124
View details for Web of Science ID 000260073000062
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On the statistics of intra-channel four-wave mixing in phase-modulated systems
Conference on Optical Fiber Communications/National Fiber Optic Engineers Conference
OPTICAL SOC AMERICA. 2008: 154–156
View details for Web of Science ID 000258857700052
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Signal design and detection in presence of nonlinear phase noise
JOURNAL OF LIGHTWAVE TECHNOLOGY
2007; 25 (10): 3008-3016
View details for DOI 10.1109/JLT.2007.905217
View details for Web of Science ID 000250846000015
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Feedforward carrier recovery for coherent optical communications
JOURNAL OF LIGHTWAVE TECHNOLOGY
2007; 25 (9): 2675-2692
View details for DOI 10.1109/JLT.2007.902118
View details for Web of Science ID 000249350000047
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Digital equalization of chromatic dispersion and polarization mode dispersion
JOURNAL OF LIGHTWAVE TECHNOLOGY
2007; 25 (8): 2033-2043
View details for DOI 10.1109/JLT.2007.900889
View details for Web of Science ID 000248640400013
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10 x 10 Gb/s DWDM transmission through 2.2-km multimode fiber using adaptive optics
IEEE PHOTONICS TECHNOLOGY LETTERS
2007; 19 (13-16): 1154-1156
View details for DOI 10.1109/LPT.2007.901437
View details for Web of Science ID 000248671600066
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Advanced Modulation Formats and Digital Signal Processing in Optical Communications
Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
IEEE. 2007: 199–200
View details for Web of Science ID 000268751000100
- Compensating Multimode Fiber Dispersion using Adaptive Optics 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 2007
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16-QAM signal design and detection in presence of nonlinear phase noise
IEEE LEOS Summer Topical Meeting 2007
IEEE. 2007: 53–54
View details for Web of Science ID 000252102000027
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Power profile optimization in phase-modulated systems in presence of nonlinear phase noise
IEEE PHOTONICS TECHNOLOGY LETTERS
2006; 18 (21-24): 2514-2516
View details for DOI 10.1109/LPT.2006.887373
View details for Web of Science ID 000243173300107
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Design of inline amplifier gains and spacings to minimize the phase noise in optical transmission systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
2006; 24 (3): 1334-1341
View details for DOI 10.1109/JLT.2005.863285
View details for Web of Science ID 000236056900028
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Power spectra of return-to-zero optical signals
JOURNAL OF LIGHTWAVE TECHNOLOGY
2006; 24 (3): 1610-1618
View details for DOI 10.1109/JLT.2005.863328
View details for Web of Science ID 000236056900060
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Scanning micromirrors fabricated by an SOI/SOI wafer-bonding process
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
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 2006
- Modulation and Detection Techniques for Optical Communication Systems 2006
- Non-Optimality of Distributed Amplification in Presence of Nonlinear Phase Noise 2006
- Electronic Compensation of Linear and Nonlinear Impairments in Phase-Modulated Systems 2006
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Carrier synchronization for 3-and 4-bit-per-symbol optical transmission
JOURNAL OF LIGHTWAVE TECHNOLOGY
2005; 23 (12): 4110-4124
View details for DOI 10.1109/JLT.2005.859428
View details for Web of Science ID 000234417100017
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Compensation for multimode fiber dispersion by adaptive optics
OPTICS LETTERS
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
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Linewidth measurements of MEMS-based tunable lasers for phase-locking applications
IEEE PHOTONICS TECHNOLOGY LETTERS
2005; 17 (10): 2029-2031
View details for DOI 10.1109/LPT.2005.856435
View details for Web of Science ID 000232149600008
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Principal modes in multimode waveguides
OPTICS LETTERS
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
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Modulation and detection techniques for DWDM systems
Topical Meeting on Optical Communication Theory and Techniques
SPRINGER. 2005: 13–20
View details for Web of Science ID 000225381700002
- Electronic Compensation of Nonlinear Phase Noise for Phase-Modulated Signals 2005
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Dispersion limitations in optical systems using offset DPSK modulation
Topical Meeting on Optical Communication Theory and Techniques
SPRINGER. 2005: 173–179
View details for Web of Science ID 000225381700020
- Spectral Efficiency Limits in DWDM Systems 2005
- Compensation of Multimode Fiber Dispersion using Adaptive Optics 2005
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Accurate bit-error-ratio computation in nonlinear CRZ-OOK and CRZ-DPSK systems
IEEE PHOTONICS TECHNOLOGY LETTERS
2004; 16 (9): 2165-2167
View details for DOI 10.1109/LPT.2004.833033
View details for Web of Science ID 000223497700059
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Conventional DPSK versus symmetrical DPSK: Comparison of dispersion tolerances
IEEE PHOTONICS TECHNOLOGY LETTERS
2004; 16 (6): 1585-1587
View details for DOI 10.1109/LPT.2004.827415
View details for Web of Science ID 000221578300055
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Performance of electrical equalizers in optically amplified OOK and DPSK systems
IEEE PHOTONICS TECHNOLOGY LETTERS
2004; 16 (5): 1397-1399
View details for DOI 10.1109/LPT.2004.826222
View details for Web of Science ID 000221064200058
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Spectral efficiency limits and modulation/detection techniques for DWDM systems
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
2004; 10 (2): 259-272
View details for DOI 10.1109/JSTQE.2004.826575
View details for Web of Science ID 000221857600004
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Electronic compensation technique to mitigate nonlinear phase noise
JOURNAL OF LIGHTWAVE TECHNOLOGY
2004; 22 (3): 779-783
View details for Web of Science ID 000220633800010
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Spectrum of externally modulated optical signals
JOURNAL OF LIGHTWAVE TECHNOLOGY
2004; 22 (2): 658-663
View details for DOI 10.1109/JLT.2004.824453
View details for Web of Science ID 000220443800043
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Free-space heterochronous imaging reception of multiple optical signals
IEEE TRANSACTIONS ON COMMUNICATIONS
2004; 52 (2): 269-279
View details for DOI 10.1109/TCOMM.2003.822755
View details for Web of Science ID 000220018700017
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Impact of chromatic and polarization-mode dispersions on DPSK systems using interferometric demodulation and direct detection
JOURNAL OF LIGHTWAVE TECHNOLOGY
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. 2004; 52 (2): 269-279
- Dispersion Limitations in Optical Systems using Offset DPSK Modulation 2004
- Modulation and Detection Techniques for DWDM Systems edited by Forestieri, E. Optical Communication Theory and Techniques. 2004
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Equalization of modal dispersion in multimode fiber using spatial light modulators
IEEE Global Telecommunications Conference (GLOBECOM 04)
IEEE. 2004: 1023–1029
View details for Web of Science ID 000226689900195
- Dispersion Limitations in Optical Systems using Offset DPSK Modulation edited by Forestieri, E. Optical Communication Theory and Techniques. 2004
- Equalization of Modal Dispersion in Multimode Fiber using Spatial Light Modulators 2004
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Performance bounds for coded free-space optical communications through atmospheric turbulence channels
IEEE International Conference on Communication
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
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Corner-cube retroreflectors based on structure-assisted assembly for free-space optical communication
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
2003; 12 (3): 233-242
View details for DOI 10.1109/JMEMS.2003.809956
View details for Web of Science ID 000183356300002
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Queueing models of optical delay lines in synchronous and asynchronous optical packet-switching networks
OPTICAL ENGINEERING
2003; 42 (6): 1741-1748
View details for DOI 10.1117/1.1572500
View details for Web of Science ID 000183373500030
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Mitigation of turbulence-induced scintillation noise in free-space optical links using temporal-domain detection techniques
IEEE PHOTONICS TECHNOLOGY LETTERS
2003; 15 (4): 623-625
View details for DOI 10.1109/LPT.2003.809305
View details for Web of Science ID 000181868900044
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Markov chain model in maximum-likelihood sequence detection for free-space optical communication through atmospheric turbulence channels
IEEE TRANSACTIONS ON COMMUNICATIONS
2003; 51 (3): 509-516
View details for DOI 10.1109/TCOMM.2003.809787
View details for Web of Science ID 000182341900025
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Two-axis scanning mirror for free-space optical communication between UAVs
IEEE/LEOS International Conference on Optical MEMS
IEEE. 2003: 157–158
View details for Web of Science ID 000185581900076
- Queueing Models of Optical Delay Lines in Synchronous and Asynchronous Optical Packet-Switching Networks Optical Engineering 2003; 42 (6): 1741-1748
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Communication techniques to mtigate atmospheric turbulence in free-space optical links
16th Annual Meeting of the IEEE Lasers and Electro-Optics Society
IEEE. 2003: 89–90
View details for Web of Science ID 000188359700044
- Mitigation of Turbulence-Induced Scintillation Noise in Free-Space Optical Links using Temporal-Domain Detection Techniques IEEE Photon. Technol. Lett. 2003; 15 (4): 623-625
- Performance Bounds for Coded Free-Space Optical Communications through Atmo-spheric Turbulence Channels IEEE Trans. on Commun. 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. 2003; 51 (3): 509-516
- Towards a 1 mm3 Camera: The Field Stitching Micromirror 2003
- Communication Techniques to Mitigate Atmospheric Turbulence in Free-Space Optical Links 2003
- MEMS for Free-Space Optical Communications 2003
- Two-Axis Scanning Mirror for Free-Space Optical Communication between UAVs 2003
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Free-space optical communication through atmospheric turbulence channels
IEEE Global Telecommunications Conference (GLOBECOM 00)
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
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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
2002; 48 (2): 514-523
View details for Web of Science ID 000173485600012
- Channel Capacity of WDM Systems Using Constant-Intensity Modulation Formats 2002
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Power-efficient multiple-subcarrier modulation scheme for optical wireless communications
Conference on Optical Wireless Communications V
SPIE-INT SOC OPTICAL ENGINEERING. 2002: 41–53
View details for Web of Science ID 000180753900005
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Optical modeling of MEMS corner cube retroreflectors with misalignment and nonflatness
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
2002; 8 (1): 26-32
View details for Web of Science ID 000174519300005
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Pilot-symbol assisted modulation for correlated turbulent free-space optical channels
Conference on Free-Space Laser Communication and Laser Imaging
SPIE-INT SOC OPTICAL ENGINEERING. 2002: 138–145
View details for Web of Science ID 000175177000014
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Advanced modulation and signal processing techniques for Gb/s optical transmission systems
1st Annual Conference on Optical Transmission Systems and Equipment for WDM Networking
SPIE-INT SOC OPTICAL ENGINEERING. 2002: 24–31
View details for Web of Science ID 000178481900003
- The Role of Electronic Modulation and Signal Processing in Next-Generation Fiber Transport 2002
- An Autonomous 16 mm3 Solar-Powered Node for Distributed Wireless Sensor Networks 2002
- Minimization of Acquisition Time in Short-Range Free-Space Optical Com-munication Applied Optics 2002; 41 (12): 7592-7602
- Ultimate Spectral Efficiency Limits in DWDM Systems Optical Fiber Commun. Conf. 2002
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Advanced modulation and signal processing techniques for 40 Gb/s optical transmission systems
Conference on Active and Passive Optical Components for WDM Communications II
SPIE-INT SOC OPTICAL ENGINEERING. 2002: 600–607
View details for Web of Science ID 000178481700068
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The role of electronic modulation and signal processing in next generation fiber transport
15th Annual Meeting of the IEEE-Lasers-and-Electro-Optics-Society
IEEE. 2002: 432–433
View details for Web of Science ID 000179772700214
- Optical Modeling of MEMS Corner Cube Retroreflectors with Misalignment and Non-flatness IEEE. J. on Sel. Topics in Quantum Electron. 2002; 8 (1): 26-32
- Free-Space Optical Communication through Atmospheric Turbulence Channels IEEE Trans. on Commun. 2002; 50 (8): 1293-1300
- Acquisition in Short-range Free-Space Optical Communication 2002
- Queueing Models of Optical Delay Lines in Synchronized Optical Packet-Switching Net-works with Non-Uniform Traffic 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 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 2002
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Assembled corner-cube retroreflector quadruplet
15th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2002)
IEEE. 2002: 556–559
View details for Web of Science ID 000174908700136
- Ultimate Spectral Efficiency Limits in DWDM Systems 2002
- Power-Efficient Multiple-Subcarrier Modulation Scheme for Optical Wireless Communications 2002
- Capacity Scaling in MIMO Wireless Systems Under Corre-lated Fading IEEE Trans. on Information Theory 2002; 48: 637-650
- Spectrally Efficient and Impairment-Robust Modulation Techniques for 40 Gb/s Optical Transmission Systems 2002
- Secure Free-Space Optical Communication Between Moving Platforms 2002
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Average power reduction techniques for multiple-subcarrier intensity-modulated optical signals
IEEE International Conference on Communications
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2001: 2164–71
View details for Web of Science ID 000173068700018
- A Bottleneck for Optical Fibres Nature 2001; 411: 1007-1010
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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
2001: 2757-2762
View details for Web of Science ID 000173159000524
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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
2001: 161-164
View details for Web of Science ID 000173159000033
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Free-space heterochronous Imaging reception of multiple optical signals
35th Asilomar Conference on Signals, Systems and Computers
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 2001
- Pilot-Symbol Assisted Modulation for Correlated Turbulent Free-Space Optical Chan-nels 2001
- Free-space Heterochronous Imaging Reception of Multiple Optical Signals 2001
- Computing Insertion Loss in MEMS Optical Switches Caused By Non-Flat Mirrors 2001
- Average Power Reduction Techniques for Multiple-Subcarrier Intensity-Modulated Opti-cal Signals IEEE Trans. on Commun. 2001; 49: 2164-2171
- Pairwise Codeword Error Probability for Coded Free-Space Optical Communication through Atmospheric Turbulence Channels 2001
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Analysis of infrared wireless links employing multibeam transmitters and imaging diversity receivers
IEEE International Conference on Global Communications (GLOBECOM)
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 2000: 2077–88
View details for Web of Science ID 000165981200018
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Emerging challenges: Mobile networking for "Smart Dust"
JOURNAL OF COMMUNICATIONS AND NETWORKS
2000; 2 (3): 188-196
View details for Web of Science ID 000089858400003
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Angle diversity for nondirected wireless infrared communication
IEEE TRANSACTIONS ON COMMUNICATIONS
2000; 48 (6): 960-969
View details for Web of Science ID 000088208800012
- Capacity Scaling in Dual Antenna Array Wireless Systems 2000
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Average power reduction techniques for multiple-subcarrier intensity-modulated optical signals
ICC 2000: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CONFERENCE RECORD, VOLS 1-3
2000: 1620-1627
View details for Web of Science ID 000089018200315
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Maximum-likelihood spatial-diversity reception on correlated turbulent free-space optical channels
IEEE Global Telecommunications Conference (GLOBECOM 00)
IEEE. 2000: 1237–1241
View details for Web of Science ID 000166939500232
- Maximum-Likelihood Spatial-Diversity Reception on Correlated Turbulent Free-Space Optical Channels 2000
- Analysis of Infrared Wireless Links Employing Multi-Beam Transmitters and Imaging Diversity Receivers IEEE Trans. on Commun. 2000; 48 (12): 2077-2088
- Capacity Growth of Multi-Ele-ment Arrays in Indoor and Outdoor Wireless Channels 2000
- Angle Diversity for Nondirected Wireless Infrared Communication IEEE Trans. on Commun. 2000; 48 (6): 960-969
- Fading Correlation and its Effect on the Capacity of Multi-Ele-ment Antenna Systems IEEE Trans. on Commun. 2000; 48: 502-513
- Average Power Reduction Techniques for Multiple-Subcarrier Intensity-Modulated Opti-cal Signals 2000
- Emerging Challenges: Mobile Networking for ‘Smart Dust J. of Com-mun. and Networks 2000; 2 (3): 188-196
- Performance Analysis of Linear Binary Block-Coded Optical PPM CDMA Systems with Soft-Decision Decoding 2000
- Capacity Scaling in Dual Antenna Array Wireless Systems 2000
- Turbo-Coded Optical PPM CDMA Systems 2000
- Transfer Function Bounds on Performance of Binary Turbo Coding Followed by M- ary Orthogonal Signal Mapping through Interleaver 2000
- BER Performance of Turbo-Coded PPM CDMA Systems on Optical Fiber J. Lightwave Technol. 2000; 18 (12): 1776-1784
- Performance of Turbo Codes with Two-Branch Diversity and Correlated Fading 2000
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Decision-feedback equalization of pulse-position modulation on measured nondirected indoor infrared channels
ICC 96 Meeting
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 1999: 500–503
View details for Web of Science ID 000080420900006
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Coding and equalization for PPM on wireless infrared channels
IEEE TRANSACTIONS ON COMMUNICATIONS
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. 1999; 47 (8): 1201-1210
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Analysis of infrared wireless links employing multi-beam transmitters and imaging diversity receivers
IEEE Global Communications Conference (GLOBECOM 99)
IEEE. 1999: 497–504
View details for Web of Science ID 000089882700092
- Effect of Non-Reciprocity on Infrared Wireless Local-Area Networks 1999
- Analysis of Infrared Wireless Links Employing Multi-Beam Transmitters and Imaging Diversity Receivers 1999
- Transfer Function Bounds on Performance of Turbo Codes for M-ary Orthogonal Sig-nals 1999
- Effect of Non-Reciprocity on Infrared Wireless Local-Area Networks 1999
- Decision-Feedback Equalization of Pulse-Position Modulation on Measured Non-Directed Indoor Infrared Channels IEEE Trans. on Commun. 1999; 47: 500-503
- Layered Space-Time Codes for Wireless Communications using Multiple Transmit Antennas 1999
- Scalable Layered Space-Time Codes for Wireless Communications: Performance Analy-sis and Design Criteria 1999
- Coding and Equalization for PPM on Wireless Infrared Channels IEEE Trans. on Commun. 1999; 47 (2): 255-260
- Average-Power Reduction Techniques for Multiple-Subcarrier Optical Intensity Modula-tion 1999
- Mobile Networking for ‘Smart Dust 1999
- Rate-Adaptive Modulation Techniques for Infrared Wireless Communications 1999
- Shaping and Non-Equiprobable Signaling for Intensity-Modulated Signals IEEE Trans. on Information Theory 1999; 45: 2661-2668
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Imaging diversity receivers for high-speed infrared wireless communication
IEEE COMMUNICATIONS MAGAZINE
1998; 36 (12): 88-94
View details for Web of Science ID 000077446800012
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Joint design of a channel-optimized quantizer and multicarrier modulation
IEEE International Conference on Communications
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 1998
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Coding and equalization for PPM on wireless infrared channels
IEEE Global Telecommunications Conference (GLOBECOM 98)
IEEE. 1998: 201–206
View details for Web of Science ID 000081660200035
- Differential Pulse-Position Modulation for Power-Efficient Optical Communication 1998
- Coding and Equalization for PPM on Wireless Infrared Channels 1998
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Experimental 25-Mb/s wireless infrared link using 4-PPM with scalar decision-feedback equalization
IEEE International Conference on Communications
IEEE. 1998: 26–30
View details for Web of Science ID 000074756100006
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Angle diversity for nondirected wireless infrared communication
IEEE International Conference on Communications
IEEE. 1998: 1665–1670
View details for Web of Science ID 000074756100315
- Capacity of Multi-Antenna Array Systems in Indoor Wireless Environment 1998
- Imaging Diversity Receivers for High- Speed Infrared Wireless Communications IEEE Communications Magazine 1998; 36 (12): 88-94
- Joint Design of Channel-Optimized Quantizer and Multicarrier Modulation IEEE Trans. on Commun. 1998; 46 (10): 1254-1257
- Angle Diversity for Nondirected Wireless Infrared Communication 1998
- Shaping and Non-Equiprobable Signaling for Intensity-Modulated Signals 1998
- Fading Correlation and its Effect on the Capacity of Multi-Ele-ment Antenna Systems 1998
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Channel reuse strategies for indoor infrared wireless communications
IEEE TRANSACTIONS ON COMMUNICATIONS
1997; 45 (10): 1280-1290
View details for Web of Science ID A1997YA50800019
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Modeling of nondirected wireless infrared channels
IEEE ICC 96 Meeting
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. 1997: 1260–68
View details for Web of Science ID A1997YA50800017
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Trellis-coded pulse-position modulation for indoor wireless infrared communications
IEEE TRANSACTIONS ON COMMUNICATIONS
1997; 45 (9): 1080-1087
View details for Web of Science ID A1997XW38700013
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Wireless infrared communications
PROCEEDINGS OF THE IEEE
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. 1997; 45 (10): 1280-1290
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Image transmission over noisy channels using multicarrier modulation
SIGNAL PROCESSING-IMAGE COMMUNICATION
1997; 9 (2): 159-169
View details for Web of Science ID A1997WC61700006
- Wireless Infrared Communications 1997
- Image Transmission Over Noisy Channels Using Multicarrier Modulation Signal Processing: Image Communication 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 1997
- Modeling of Nondirected Wireless Infrared Channels IEEE Trans. on Com-mun. 1997; 45 (10): 1260-1268
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Effect of electronic-ballast fluorescent lighting on wireless infrared links
IEE PROCEEDINGS-OPTOELECTRONICS
1996; 143 (6): 347-354
View details for Web of Science ID A1996WJ04900005
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Optimal predistortion of gaussian inputs for clipping channels
IEEE TRANSACTIONS ON COMMUNICATIONS
1996; 44 (11): 1505-1513
View details for Web of Science ID A1996VU30900017
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Performance evaluation of experimental 50-Mb/s diffuse infrared wireless link using on-off keying with decision-feedback equalization
IEEE TRANSACTIONS ON COMMUNICATIONS
1996; 44 (11): 1496-1504
View details for Web of Science ID A1996VU30900016
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Transmission of analog signals using multicarrier modulation: A combined source-channel coding approach
IEEE TRANSACTIONS ON COMMUNICATIONS
1996; 44 (11): 1432-1443
View details for Web of Science ID A1996VU30900010
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Performance of pulse-position modulation on measured non-directed indoor infrared channels
IEEE TRANSACTIONS ON COMMUNICATIONS
1996; 44 (6): 654-659
View details for Web of Science ID A1996UQ22400005
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Methods for crosstalk measurement and reduction in dense WDM systems
JOURNAL OF LIGHTWAVE TECHNOLOGY
1996; 14 (6): 1127-1135
View details for Web of Science ID A1996UT34600023
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Multiple-subcarrier modulation for nondirected wireless infrared communication
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
1996; 14 (3): 538-546
View details for Web of Science ID A1996UE32500016
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Effect of electronic-ballast fluorescent lighting on wireless infrared links
1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96)
IEEE. 1996: 1213–1219
View details for Web of Science ID A1996BG05Y00227
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Channel reuse strategies for indoor infrared wireless communications
IEEE GLOBECOM 1996 - Communications: The Key to Global Prosperity
IEEE. 1996: 1597–1602
View details for Web of Science ID A1996BH62N00297
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Combined source-channel coding using channel-optimized quantizer and multicarrier modulation
1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96)
IEEE. 1996: 1323–1327
View details for Web of Science ID A1996BG05Y00247
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Modeling of nondirected wireless infrared channels
1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96)
IEEE. 1996: 1227–1231
View details for Web of Science ID A1996BG05Y00229
- Transmission of Analog Signals using Multicarrier Modulation: a Combined Source- Channel Coding Approach IEEE Trans. on Commun. 1996; 44 (11): 1432-1443
- Multiple-Subcarrier Modulation for Non-Directed Wireless Infrared Communi-cation IEEE J. Sel. Areas in Commun. 1996; 14: 538-546
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On models of clipping distortion for lightwave CATV systems
IEEE PHOTONICS TECHNOLOGY LETTERS
1996; 8 (1): 125-126
View details for Web of Science ID A1996TN50000043
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Wireless infrared communication links using multi-beam transmitters and imaging receivers
1996 IEEE International Conference on Communications - Converging Technologies for Tomorrows Applications (ICC 96)
IEEE. 1996: 180–186
View details for Web of Science ID A1996BG05Y00034
- Diffractive Spot-Array Generation Using Multimode Surface-Emitting Lasers and Light-Emitting Diodes 1996
- Optimal Predistortion of Gaussian Inputs for Clipping Channels IEEE Trans. on Commun. 1996; 44 (11): 1505-1513
- On Models of Clipping Distortion for Lightwave CATV Systems IEEE Photon. Tech-nol. Lett. 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. 1996; 44 (11): 1496- 1504
- Combined Source-Channel Coding Using Channel-Optimized Quantizer and Multicar-rier Modulation 1996
- Channel Reuse Strategies for Indoor Infrared Wireless Communications 1996
- Modeling of Non-Directed Wireless Infrared Channels 1996
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Trellis-coded pulse-position modulation for indoor wireless infrared communications
7th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 96)
IEEE. 1996: 349–353
View details for Web of Science ID A1996BH25X00074
- Wireless Infrared Communication Links using Multi-Beam Transmitters and Imaging Receivers 1996
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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)
IEEE. 1996: 1220–1226
View details for Web of Science ID A1996BG05Y00228
- Methods for Crosstalk Measurement and Reduction in Dense WDM Systems J. Lightwave Technol. 1996; 14: 1127-1135
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EXACT PROBABILITY-DENSITY FUNCTION FOR PHASE-MEASUREMENT INTERFEROMETRY
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
1995; 12 (9): 1984-1989
View details for Web of Science ID A1995RR75400017
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LINK DESIGN FOR NONDIRECTED WIRELESS INFRARED COMMUNICATIONS
APPLIED OPTICS
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
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PERFORMANCE EVALUATION OF BASEBAND OOK FOR WIRELESS INDOOR INFRARED LANS OPERATING AT 100 MB/S
IEEE TRANSACTIONS ON COMMUNICATIONS
1995; 43 (6): 2085-2094
View details for Web of Science ID A1995RC61900013
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COMPOUND PARABOLIC CONCENTRATORS FOR NARROW-BAND WIRELESS INFRARED RECEIVERS
OPTICAL ENGINEERING
1995; 34 (5): 1385-1395
View details for Web of Science ID A1995QX17900018
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EXPERIMENTAL CHARACTERIZATION OF NON-DIRECTED INDOOR INFRARED CHANNELS
IEEE TRANSACTIONS ON COMMUNICATIONS
1995; 43 (2-4): 1613-1623
View details for Web of Science ID A1995QV15700057
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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
IEEE. 1995: 1177–1181
View details for Web of Science ID A1995BD72P00223
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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
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 1995; 12 (9): 1984-1989
- Transmission of DCT-Coded Images by Multicarrier Modulation for Noisy Channels 1995
- Crosstalk Measurement and Reduction in Dense WDM Systems Using Subcarrier Tone Channel Identification and Linear Cancellation 1995
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Performance of pulse-position modulation with trellis-coded modulation on non-directed indoor infrared channels
IEEE Global Telecommunications Conference
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. 1995: 35-36
- Link Design for Non-Directed Wireless Infrared Communications Applied Optics 1995; 34 (19): 3764-3776
- Performance Evaluation of Experimental 50-Mb/s Diffuse Infrared Wireless Link using On-Off Keying with Decision-Feedback Equalization 1995
- Performance of L-Pulse-Position Modulation with Trellis-Coded Modula-tion on Non-Directed Indoor Infrared Channels 1995
- Experimental Characterization of Non-Directed Indoor Infrared Channels IEEE Trans. on Commun 1995; 43: 1613-1623
- Compound Parabolic Concentrators for Narrow-Band Wireless Infrared Receivers Optical Engineering 1995; 34 (5): 1385-1395
- High-Speed Wireless Infrared Communications presented at 19th IEEE Computer Elements Work-shop, Vail, CO 1995
- Combined Source-Channel Coding Using Multicarrier Modulation 1995
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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
IEEE. 1994: 660–664
View details for Web of Science ID A1994BB15C00124
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50-MB/S DIFFUSE INFRARED FREE-SPACE LINK USING ON-OFF KEYING WITH DECISION-FEEDBACK EQUALIZATION
28th Asilomar Conference on Signals, Systems and Computers
IEEE COMPUTER SOC. 1994: 74–77
View details for Web of Science ID A1994BC60P00016
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MUTLIPLE-SUBCARRIER MODULATION FOR NON-DIRECTED WIRELESS INFRARED COMMUNICATION
1994 IEEE GLOBECOM - Communications, the Global Bridge
IEEE. 1994: 1055–1059
View details for Web of Science ID A1994BC88U00198
- Channel Compression in Subcarrier-Multiplexed Lightwave Systems 1994
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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)
I O S PRESS. 1994: 1086–1089
View details for Web of Science ID A1994BB86S00207
- Non-Directed Infrared Links for High-Capacity Wireless LANs IEEE Pers. Commun. Mag. 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. 1994; 6 (10): 1268-1270
- Design of Non-Directed Infrared Links for High-Speed Wireless Networks 1994
- Multiple-Subcarrier Modulation for Non-Directed Wireless Infrared Communi-cation 1994
- 50-Mb/s Diffuse Infrared Free-Space Link Using On-Off Keying with Decision Feedback Equalization 1994
- 50-Mb/s Diffuse Infrared Free-Space Link Using On-Off Keying with Decision Feedback Equalization 1994
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EQUALIZATION TECHNIQUE TO REDUCE CLIPPING-INDUCED NONLINEAR DISTORTION IN SUBCARRIER-MULTIPLEXED LIGHTWAVE SYSTEMS
IEEE PHOTONICS TECHNOLOGY LETTERS
1993; 5 (9): 1100-1103
View details for Web of Science ID A1993MH16500048
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EXTERNAL OPTICAL FEEDBACK EFFECTS ON INTENSITY NOISE OF VERTICAL-CAVITY SURFACE-EMITTING LASERS
IEEE PHOTONICS TECHNOLOGY LETTERS
1993; 5 (8): 892-895
View details for Web of Science ID A1993MC69400011
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OPTICAL FREQUENCY COMB GENERATOR USING PHASE MODULATION IN AMPLIFIED CIRCULATING LOOP
IEEE PHOTONICS TECHNOLOGY LETTERS
1993; 5 (6): 721-725
View details for Web of Science ID A1993LK18200047
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SIMULATION OF MULTIPATH IMPULSE-RESPONSE FOR INDOOR WIRELESS OPTICAL CHANNELS
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
1993; 11 (3): 367-379
View details for Web of Science ID A1993LJ35100010
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DESIGN OF HIGH-SPEED WIRELESS LINKS USING NON-DIRECTIONAL INFRARED RADIATION
3RD WORKSHOP ON THIRD GENERATION WIRELESS INFORMATION NETWORKS
KLUWER ACADEMIC PUBLISHERS. 1993: 109–126
View details for Web of Science ID A1993BY07T00007
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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)
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 1993
- Optical Frequency Comb Generator Using Phase Modulation in Amplified Circulating Loop IEEE Photon. Technol. Lett. 1993; 5 (6): 721-725
- Equalization Technique to Reduce Laser Clipping-Induced Distortion in Subcarrier-Multiplexed Lightwave Systems IEEE Photon. Technol. Lett. 1993; 5 (9): 1100-1103
- External Optical Feedback Effects on Intensity Noise of Vertical-Cavity Surface-Emitting Lasers IEEE Photon. Technol. Lett. 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. 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. 1993: 397-400
- Heterodyne Detection of 310-Mb/s Quadriphase-Shift Keying Using Fourth-Power Optical Phase-Locked Loop Tech. Digest of Optical Fiber Commun. Conf. 1993
- Simulation Tools for Free-Space Optical Interconnects Based on Computer-Generated Holograms 1993
- Simulation of Multipath Impulse Response for Wireless Optical Channels IEEE J. Sel. Areas in Commun. 1993; 11 (3): 367-379
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CARRIER SYNCHRONIZATION FOR HOMODYNE AND HETERODYNE-DETECTION OF OPTICAL QUADRIPHASE-SHIFT KEYING
JOURNAL OF LIGHTWAVE TECHNOLOGY
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. 1992; 10: 1939-1951
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HIGH-SPEED NON-DIRECTIONAL INFRARED COMMUNICATION FOR WIRELESS LOCAL-AREA NETWORKS
26TH ASILOMAR CONF ON SIGNALS, SYSTEMS AND COMPUTERS
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. 1992: 292
- Wireless Communications: Future Directions Design of High-Speed Wireless Links Using Non-Directional Infrared Radiation 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. 1992; 4: 1397-1400
- Free-Space Infrared Communication for Wireless Indoor Networks 1992
- Design of High-Speed Wireless Links Using Non-Directional Infrared Radiation 1992
- Performance Simulation of Baseband OOK Modulation for Wireless Infrared LANs at 100 Mb/s 1992
- Free-Space Infrared Communication for Wireless Indoor Networks 1992
- High-Speed Nondirective Optical Communication for Wireless Networks IEEE Network Magazine 1991: 44-54
- Modeling of Indoor Free-Space Infrared Propaga-tion 1991
- Polarization Effects on Ultra-Long Distance Signal Transmission in Amplified Optical-Fiber Loops IEEE Photon. Technol. Lett. 1991; 3: 948-951
- Polarization Effects on Ultra-Long Distance Signal Transmission in Amplified Optical-Fiber Loops Tech. Digest of 17th Euro. Conf. on Opt. Commun. 1991: 385-388
- 4 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers ech. Digest of Postdeadline Papers, Optical Fiber Com-mun. Conf. 1990: PD10/1-PD10/4
- Homodyne Detection of Phase-Shift-Keying for Multi-Gigabit Lightwave Transmission Tech. Digest of Optical Fiber Commun. Conf. 1990: 211
- 4 Gbit/s Heterodyne Transmission Experiments Using ASK, FSK, and DPSK Modulation IEEE Photon. Technol. Lett. 1990; 2: 908-910
- 4 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers IEEE Photon. Technol. Lett. 1990; 2: 285-287
- BPSK Homodyne Detection Experiment Using Balanced Optical Phase-Locked Loop with Quantized Feedback IEEE Photon. Technol. Lett. 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. 1990: 991-994
- 1 Gbit/s PSK Homodyne Transmission System Using Phase-Locked Semiconductor Lasers IEEE Photon. Technol. Lett. 1989; 1: 340-342
- PSK Homodyne Lightwave Transmission Using Semiconductor Lasers Tech. Digest of 15th Euro. Conf. on Opt. Commun. 1989
- Optical Phaselock Receiver with Multi-Gigahertz Signal Bandwidth Electron. Lett. 1989; 25: 626-627
- Optical Phaselock Receiver with Multigigahertz Signal Bandwidth Tech. Digest of Seventh Intl. Conf. on Integ. Optics and Opt. Fiber Commun. 1989
- High-Stability 1.5 μm External-Cavity Lasers for Phase-Lock Applica-tions IEEE Photon. Technol. Lett. 1989; 1: 159-161
- 1 Gbit/s Integrate-and-Dump Filter for Digital Communication Systems Electron. Lett. 1989; 25: 212-214
- 1 Gbit/s Zero-IF DPSK Coherent Optical System Using a Single Photodetector Tech. Digest of Optical Fiber Commun. Conf. 1989: 72
- 1 Gbit/s Zero-IF DPSK Coherent Optical System Using a Single Photodetector Electron. Lett. 1988; 24: 1455-1456
- Phase-Insensitive Zero-IF Coherent Optical System Using Phase Switching Electron. Lett. 1988; 24: 974-975
- Trigonal Hydrogen-Related Acceptor Complexes in Germanium Phys. Rev. B 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 1987
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- Copper-Dihydrogen Complex Shallow Acceptors in High-Purity Ger-manium Bull. Am. Phys. Soc. Ser. II 1986; 31: 695
- Isotope-Induced Symmetry Change in Dynamic Semiconductor Defects Phys. Rev. Lett. 1986; 57: 2077-2080
- Copper-Dihydrogen Acceptors in High-Purity Germanium 1986
- A Shallow Hydrogen-Zinc Acceptor in Germa-nium Solid State Commun. 1985; 53: 1137
- Low Temperature Atomic Hydrogen Diffusivity in Si and Ge Bull. Am. Phys. Soc. Ser. II 1984; 29: 208
- Hydrogenation of Gold-Related Levels in Silicon by Electrolytic Doping J. Appl. Phys. 1984; 55: 1221-1223
- The Nature of the Dominant Gamma-Induced Defects in High-Purity Germanium Rad. Effects 1984; 81: 293-308
- Deep Level Impurities in Germanium and Silicon: Low Temperature Passivation or Removal Techniques IEEE Trans. Nucl. Sci. 1984; NS-31: 326-330
- A Shallow Hydrogen-Zinc Acceptor in Germa-nium, 1984
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- MIMO Signal Processing for Mode-Division Multiplexing IEEE Signal Processing Magazine (Invited Paper).
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- Coded Modulation for Fiber-Optic Networks IEEE Signal Processing Magazine.