Dr. Douglas H Nelson Profile

Dr. Douglas H Nelson

Senior Combat Systems Engineer

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Publications (9)

Proceedings Article | 9 March 2007 Paper

Narrow linewidth coherent beam combining of optical fiber amplifier arrays

Thomas Shay, Vincent Benham, Jeffrey Baker, Anthony Sanchez, Daniel Pilkington, Douglas Nelson, Chunte Lu

Proceedings Volume 6451, 64511N (2007) https://doi.org/10.1117/12.714639

KEYWORDS: Cobalt, Modulation, Phase shift keying, Optical components, Mode locking, Photodetectors, Fiber amplifiers, Phase modulation, Signal processing, Phase measurement

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Proceedings Article | 6 September 2006 Paper

First experimental demonstration of self-synchronous locking of optical coherence by single-detector electronic-frequency tagging of fiber amplifiers

T. Shay, Vincent Benham, J. Baker, Benjamin Ward, Anthony Sanchez, Mark Culpepper, D. Pilkington, Justin Spring, Douglas Nelson, Chunte Lu

Proceedings Volume 6304, 63040W (2006) https://doi.org/10.1117/12.678425

KEYWORDS: Phase shift keying, Optical components, Mode locking, Fiber amplifiers, Phase measurement, Modulation, Photodetectors, Phase modulation, Signal processing, Optical arrays

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Proceedings Article | 1 July 2002 Paper

Acquisition, tracking, pointing, and line-of-sight control laboratory experiments for a space-based bifocal relay mirror

Michael Spencer, Brij Agrawal, Marcello Romano, Richard Brunson, James Dillow, Douglas Nelson, J. Connors, Sergio Restaino

Proceedings Volume 4714, (2002) https://doi.org/10.1117/12.472600

KEYWORDS: Mirrors, Space operations, Relays, Space telescopes, Telescopes, Sensors, Control systems, Transmitters, Beam controllers, Acquisition tracking and pointing

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Proceedings Article | 5 October 1999 Paper

Huygens-Fresnel wave-optics simulation of atmospheric optical turbulence and reflective speckle in CO2 differential absorption lidar (DIAL)

Douglas Nelson, Roger Petrin, Charles Quick, L. John Jolin, Edward MacKerrow, Mark Schmitt, Bernard Foy, Aaron Koskelo, Brian McVey, William Porch, Joseph Tiee, Charles Fite, Frank Archuleta, Michael Whitehead, Donald Walters

Proceedings Volume 3763, (1999) https://doi.org/10.1117/12.363616

KEYWORDS: Turbulence, Atmospheric propagation, Speckle, Atmospheric optics, LIDAR, Optical turbulence, Reflectivity, Receivers, Atmospheric modeling, Wave propagation

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Proceedings Article | 3 August 1999 Paper

Huygens-Fresnel wave-optics simulation of atmospheric optical turbulence and reflective speckle in CO2 differential absorption lidar (DIAL)

Douglas Nelson, Roger Petrin, Edward MacKerrow, Mark Schmitt, Bernard Foy, Aaron Koskelo, Brian McVey, Charles Quick, William Porch, Joseph Tiee, Charles Fite, Frank Archuleta, Michael Whitehead, Donald Walters

Proceedings Volume 3706, (1999) https://doi.org/10.1117/12.356949

KEYWORDS: Turbulence, Speckle, Atmospheric propagation, LIDAR, Reflectivity, Atmospheric optics, Wave propagation, Optical turbulence, Optical simulations, Beam propagation method

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Proceedings Article | 8 September 1998 Paper

Wave optics simulation of atmospheric turbulence and reflective speckle effects in CO2 differential absorption lidar (DIAL)

Douglas Nelson, Roger Petrin, Edward MacKerrow, Mark Schmitt, Charles Quick, Andrew Zardecki, William Porch, Michael Whitehead, Donald Walters

Proceedings Volume 3381, (1998) https://doi.org/10.1117/12.323933

KEYWORDS: Speckle, Turbulence, Atmospheric propagation, Reflectivity, Atmospheric turbulence, LIDAR, Optical simulations, Receivers, Atmospheric optics, Wave propagation

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Proceedings Article | 31 October 1997 Paper

Development of frequency-agile high-repetition-rate CO2 DIAL systems for long range chemical remote sensing

Charles Quick, Charles Fite, Bernard Foy, L. John Jolin, Aaron Koskelo, Bryan Laubscher, Edward MacKerrow, Brian McVey, Donald Mietz, Douglas Nelson, Robert Nemzek, Roger Petrin, John Quagliano, Patrick Schafstall, Robert Sander, Joseph Tiee, Michael Whitehead

Proceedings Volume 3127, (1997) https://doi.org/10.1117/12.283907

KEYWORDS: Absorption, Carbon dioxide, Speckle, LIDAR, Carbon dioxide lasers, Turbulence, Target detection, Chemical analysis, Pulsed laser operation, Atmospheric propagation

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Proceedings Article | 31 October 1997 Paper

Noise contaminated transmittance

Andrew Zardecki, Brian McVey, Douglas Nelson, Mark Schmitt

Proceedings Volume 3127, (1997) https://doi.org/10.1117/12.279068

KEYWORDS: Transmittance, Neural networks, LIDAR, Fourier transforms, Fractal analysis, Correlation function, Interference (communication), Chemical analysis, Atmospheric modeling, Absorption

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Proceedings Article | 29 March 1996 Paper

Atmospheric effects on CO2 differential absorption lidar sensitivity

Roger Petrin, Douglas Nelson, Mark Schmitt, Charles Quick, Joseph Tiee, Michael Whitehead

Proceedings Volume 2702, (1996) https://doi.org/10.1117/12.236883

KEYWORDS: Atmospheric modeling, Absorption, Signal to noise ratio, Atmospheric propagation, Atmospheric turbulence, Turbulence, Carbon monoxide, Gas lasers, LIDAR, Atmospheric sensing

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Showing 5 of 9 publications

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