Dr. James L. Dexter Profile

Dr. James L. Dexter

at US Naval Research Lab

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Author

Publications (6)

SPIE Journal Paper | 16 June 2022 Open Access

Adaptive subcarrier intensity modulation for free space optical communication

Mike Ferraro, Rita Mahon, William Rabinovich, Andrew Coffee, James Murphy, James Dexter, Wade Freeman

OE, Vol. 61, Issue 06, 066105, (June 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.6.066105

KEYWORDS: Scintillation, Free space optics, Modulation, Free space optical communications, Sensors, Phase shift keying, Optical engineering, Telecommunications, Multiplexing, Quadrature amplitude modulation

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Proceedings Article | 5 March 2021 Presentation + Paper

Characterization of multi-level digital waveforms for low-Earth-orbit free space optical communication

Mike Ferraro, Rita Mahon, William Rabinovich, Andrew Coffee, James Murphy, James Dexter, Wade Freeman

Proceedings Volume 11678, 1167814 (2021) https://doi.org/10.1117/12.2585889

KEYWORDS: Free space optical communications, Signal attenuation, Data communications, Free space optics, Telecommunications, Scattering, Satellite communications, Atmospheric turbulence, Atmospheric propagation, Wave propagation

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Proceedings Article | 2 March 2020 Paper

Advanced digital waveforms for low-Earth-orbit (LEO) FSO links

Mike Ferraro, William Rabinovich, James Murphy, Rita Mahon, James Dexter, Wade Freeman

Proceedings Volume 11272, 112720A (2020) https://doi.org/10.1117/12.2549333

KEYWORDS: Scintillation, Modulation, Free space optics, Avalanche photodetectors, Atmospheric optics, Sensors, Signal attenuation, Quadrature amplitude modulation, Phase shift keying, Adaptive optics

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Proceedings Article | 15 February 2018 Paper

FSO links using high sensitivity gigabit combinational sensors and an adaptive high-throughput error-correction protocol

Mike Ferraro, Rita Mahon, James Murphy, James Dexter, William Rabinovich, Linda Thomas, Christopher Moore, William Clark, William Waters, Kenneth Vaccaro, Ryan McCourt

Proceedings Volume 10524, 1052408 (2018) https://doi.org/10.1117/12.2290656

KEYWORDS: Scintillation, Free space optics, Avalanche photodetectors, Sensors, Photodetectors, Error control coding, Forward error correction

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Proceedings Article | 24 February 2017 Presentation + Paper

Simultaneous data communication and position sensing with an impact ionization engineered avalanche photodiode array for free space optical communication

Mike Ferraro, Rita Mahon, William Rabinovich, James Murphy, James Dexter, William Clark, William Waters, Kenneth Vaccaro, Brian Krejca

Proceedings Volume 10096, 100960N (2017) https://doi.org/10.1117/12.2250545

KEYWORDS: Sensors, Data communications, Free space optics, Ionization, Avalanche photodiodes, Free space optical communications, Telecommunications, Sensing systems, Optical tracking, Algorithm development, Avalanche photodetectors, Optical fabrication, Electronics

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Proceedings Article | 17 September 1993 Paper

Two optical-control techniques for phased array: interferometric and dispersive-fiber true time delay

Ronald Esman, Michael Frankel, J. Dexter, Lew Goldberg, Mark Parent, Denzil Stilwell

Proceedings Volume 1958, (1993) https://doi.org/10.1117/12.157123

KEYWORDS: Antennas, Phased array optics, Optical fibers, Microwave radiation, Phased arrays, Fiber optics, Signal detection, Control systems, Interferometry, Optical components

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Showing 5 of 6 publications

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