Adaptive optics system considerations for ground-to-space propagation

Robert K. Tyson; Douglas P. Crawford; Rick James Morgan

doi:10.1117/12.18337

1 May 1990 Adaptive optics system considerations for ground-to-space propagation

Robert K. Tyson, Douglas P. Crawford, Rick James Morgan

Proceedings Volume 1221, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere; (1990) https://doi.org/10.1117/12.18337
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

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.

Citation Download Citation

Robert K. Tyson, Douglas P. Crawford, and Rick James Morgan "Adaptive optics system considerations for ground-to-space propagation", Proc. SPIE 1221, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere, (1 May 1990); https://doi.org/10.1117/12.18337

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