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12 June 2023 Non-mechanical beam steering for NASA's navigation Doppler LiDAR (Conference Presentation)
Aram Gragossian, Frederick G. Wilson, Nathan A. Dostart, Bruce W. Barnes, Glenn D. Hines, Farzin Amzajerdian
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Proceedings Volume PC12537, Laser Radar Technology and Applications XXVIII; PC1253703 (2023) https://doi.org/10.1117/12.2664023
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
Abstract
Transparent electro-optic (EO) devices can potentially be used for efficient, high speed, and low mass non-mechanical beam steering. Transmission through EO devices will affect the wavefront quality and aberration of both the transmitted and received laser light. The consequences of wavefront distortions on coherent detection are not fully understood. Therefore, we have tested the performance of coherent detection lidar using liquid crystal polarization grating (LCPG) beam steering device. We will discuss the impact of LCPG beam steering devices on the performance of NASA’s Navigation Doppler Lidar, built for providing altitude and vector velocity data to aerial and space vehicles.
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© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Aram Gragossian, Frederick G. Wilson, Nathan A. Dostart, Bruce W. Barnes, Glenn D. Hines, and Farzin Amzajerdian "Non-mechanical beam steering for NASA's navigation Doppler LiDAR (Conference Presentation)", Proc. SPIE PC12537, Laser Radar Technology and Applications XXVIII, PC1253703 (12 June 2023); https://doi.org/10.1117/12.2664023
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KEYWORDS
LIDAR
Beam steering
Doppler effect
Telescopes
Signal to noise ratio
Scattering
Signal attenuation
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