Mr. Wade T. Freeman Profile

Wade T. Freeman

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 12 March 2024 Presentation + Paper

The SDA tranche 1 optical interoperability testbed

William Rabinovich, Rita Mahon, Mike Ferraro, Jonathan Rabinovich, Taylor Page, Joshua Beun, Michele Suite, Wade Freeman

Proceedings Volume 12877, 128770C (2024) https://doi.org/10.1117/12.3007261

KEYWORDS: Optical testing, Simulink, Free space optics, Space operations, Beam divergence, Light sources and illumination, Optical communications

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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 | 21 May 2020 Presentation + Paper

Optical communication in maritime environments using orbital angular momentum

K. Peter Judd, Patrick Mahan, Nicholas Makrakis, J. Lindle, Abbie Watnik, Wade Freeman, Bob Sagusti, Patrick Neary, Charles Payne, Carlos Font

Proceedings Volume 11420, 114200E (2020) https://doi.org/10.1117/12.2560262

KEYWORDS: Optical communications, Lithium

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Proceedings Article | 2 March 2020 Paper

A system overview of a small form factor free space optical communication prototype

Taylor Page, Jonathan Rabinovich, Linda Thomas, Andrew Menas, Mike Ferraro, William Rabinovich, Rita Mahon, Wade Freeman

Proceedings Volume 11272, 112720L (2020) https://doi.org/10.1117/12.2551310

KEYWORDS: Sensors, Free space optics, Cameras, Prototyping, Short wave infrared radiation, Receivers, Acquisition tracking and pointing, Mirrors, Free space optical communications, Microelectromechanical systems

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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 | 9 June 2014 Paper

Integration of a concentric five element InAIAs/InGaAs avalanche photodiode array in a stabilized bi-static optical assembly

Mike Ferraro, Rita Mahon, William Rabinovich, James Murphy, Wade Freeman, Steve Frawley, Peter Goetz, Harris Burris, Linda Thomas, William Clark, William Waters, Kenneth Vaccaro, Brian Krejca, Barry Mathieu

Proceedings Volume 9080, 90801D (2014) https://doi.org/10.1117/12.2052943

KEYWORDS: Avalanche photodetectors, Receivers, Optical fabrication, Avalanche photodiodes, Sensors, Free space optics, Optical design, Ionization, Data centers, Optical components

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Proceedings Article | 15 September 2011 Paper

InGaAs avalanche photodiode arrays for simultaneous communications and tracking

Mike Ferraro, Rita Mahon, William Rabinovich, Wade Freeman, James Murphy, Peter Goetz, Harris Burris, Christopher Moore, Linda Thomas, William Clark, William Waters

Proceedings Volume 8162, 81620D (2011) https://doi.org/10.1117/12.895116

KEYWORDS: Avalanche photodetectors, Receivers, Optical amplifiers, Electronics, Sensors, Avalanche photodiodes, Free space optical communications, Indium gallium arsenide, Photodetectors, Telecommunications

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Proceedings Article | 22 February 2011 Paper

Tactical network demonstration with free space lasercomm

H. Burris, M. Ferraro, W. Freeman, P. Goetz, R. Mahon, C. Moore, J. Murphy, J. Overfield, W. Rabinovich, W. Smith, M. Suite, L. Thomas, B. Xu

Proceedings Volume 7923, 792305 (2011) https://doi.org/10.1117/12.879476

KEYWORDS: Video, Fourier transforms, Cameras, Free space optical communications, Sensors, Receivers, Eye, Switches, Turbulence, Transmitters

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Proceedings Article | 15 February 2010 Paper

Free space optical communications research at the U.S. Naval Research Laboratory

W. Rabinovich, C. Moore, H. R. Burris, J. Murphy, M. Suite, R. Mahon, M. Ferraro, P. Goetz, L. Thomas, C. Font, G. C. Gilbreath, B. Xu, S. Binari, K. Hacker, S. Reese, W. Freeman, S. Frawley, E. Saint-Georges, S. Uecke, J. Sender

Proceedings Volume 7587, 758702 (2010) https://doi.org/10.1117/12.843682

KEYWORDS: Free space optics, Retroreflectors, Sensors, Receivers, Modulation, Free space optical communications, Atmospheric propagation, Modulators, Video, Eye

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Proceedings Article | 21 August 2009 Paper

Free-space optical data link to a small robot using modulating retroreflectors

William Rabinovich, James Murphy, Michele Suite, Mike Ferraro, Rita Mahon, Peter Goetz, Kurt Hacker, Wade Freeman, Eric Saint Georges, Stan Uecke, John Sender

Proceedings Volume 7464, 746408 (2009) https://doi.org/10.1117/12.828869

KEYWORDS: Free space optics, Retroreflectors, Modulation, Scintillation, Photodetectors, Video, Telecommunications, Free space, Optical communications, Sensors

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Proceedings Article | 19 August 2008 Paper

Large area adaptive avalanche photodetector arrays for free-space optical communication

Mike Ferraro, Wade Freeman, Rita Mahon, James Murphy, Peter Goetz, Michael Colbert, William Rabinovich, Harris Burris, Christopher Moore, William Clark, William Waters

Proceedings Volume 7091, 70910J (2008) https://doi.org/10.1117/12.798915

KEYWORDS: Avalanche photodetectors, Signal to noise ratio, Free space optical communications, Atmospheric turbulence, Free space optics, Receivers, Optical arrays, Amplifiers, Photodiodes, Indium gallium arsenide

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SPIE Journal Paper | 1 April 2008

Free-space optical communication link across

Mark Plett, William Rabinovich, Rita Mahon, Mike Ferraro, Peter Goetz, Christopher Moore, Wade Freeman

OE, Vol. 47, Issue 04, 045001, (April 2008) https://doi.org/10.1117/12.10.1117/1.2903104

KEYWORDS: Retroreflectors, Free space optics, Scintillation, Modulation, Cameras, Receivers, Free space optical communications, Telecommunications, Transmitters, Mirrors

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Proceedings Article | 1 September 2006 Paper

Coherent effects and aperture averaging in retroreflected light

Rita Mahon, William Rabinovich, Harris Burris, Mike Ferraro, Wade Freeman, Christopher Moore, James Murphy, Michelle Suite, Linda Wasiczko

Proceedings Volume 6304, 63041Y (2006) https://doi.org/10.1117/12.691317

KEYWORDS: Retroreflectors, Receivers, Scintillation, Temperature metrology, Monte Carlo methods, Atmospheric scintillation, Laser beam diagnostics, Atmospheric optics, Turbulence, Photodiodes

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Proceedings Article | 17 May 2006 Paper

Packet testing in free-space optical communication links over water

M. Suite, H. Burris, C. Moore, M. Stell, L. Wasiczko, W. Freeman, W. Rabinovich, G. C. Gilbreath, W. Scharpf

Proceedings Volume 6215, 621505 (2006) https://doi.org/10.1117/12.668128

KEYWORDS: Free space optics, Receivers, Transmitters, Laser optics, Optical amplifiers, Scintillation, Free space optical communications, Error analysis, Clocks, Analytical research

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Showing 5 of 15 publications

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