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3 November 1998 Active compensation for horizontal-line-of-sight turbulence over near-ground paths
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Atmospheric turbulence over long horizontal paths perturbs phase in the pupil of an optical communications receiver, and also can cause severe intensity scintillations. We describe a real time wavefront compensation system using PC technology to perform all wavefront control tasks. This system uses a modal correction scheme, and we report the first measurements of residual wavefront taken approximately 1 meter above ground level at 1 km range. The effects of turbulence, scintillations and control bandwidth on the correction are all examined.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bruce Martin Levine, Allan Wirth, Herbert DaSilva, Franklin M. Landers, Stacy Clinton, Theresa L. Bruno, Pierre R. Barbier, David W. Rush, Penelope Polak-Dingels, Geoffrey L. Burdge, and Douglas P. Looze "Active compensation for horizontal-line-of-sight turbulence over near-ground paths", Proc. SPIE 3433, Propagation and Imaging through the Atmosphere II, (3 November 1998);

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