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Proceedings Paper

Adaptive optics system considerations for ground-to-space propagation
Author(s): Robert K. Tyson; Douglas P. Crawford; Rick James Morgan
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Paper Abstract

The sefu1 power of lasers transmitted from ground to space is affected by the level and sophistication of the adaptive optics (AO) correction used. The adverse effects of thermal blooming, turbulence, and their interaction can be reduced by varying the spatial and temporal characteristics of the AO. Results of an analytical study are presented where we vary AO simulation methods and hardware parameters. Since various modeling methods show similar results, we conclude that the problems, such as high spatial frequency instabilities, are of a physical nature rather than numerical artifacts or constraints in the modeling assumptions. Variations of AO hardware parameters, such as actuator location, bandwidth, and deformable mirror influence functions, lead to scaling laws useful to the technologist. The analysis concludes with suggestions for optimizing the adaptive optics approach to the ground-to-space propagation problem.

Paper Details

Date Published: 1 May 1990
PDF: 11 pages
Proc. SPIE 1221, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere, (1 May 1990); doi: 10.1117/12.18337
Show Author Affiliations
Robert K. Tyson, W. J. Schafer Associates, Inc. (United States)
Douglas P. Crawford, W. J. Schafer Associates, Inc. (United States)
Rick James Morgan, Institute for Scientific Studies (United States)


Published in SPIE Proceedings Vol. 1221:
Propagation of High-Energy Laser Beams Through the Earth's Atmosphere
Peter B. Ulrich; LeRoy E. Wilson, Editor(s)

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