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Proceedings Paper

Optical phase conjugation for atmospheric turbulence assessment
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Paper Abstract

This paper describes a method for real-time 'mapping' of atmospheric turbulence. This can be achieved through excitation of a Rayleigh laser-guide star and coherent detection of the wave-function in the back-scattered light. Detailed information about this function is essential for establishing efficient performance of an adaptive optics system and estimation of atmospheric turbulence parameters such as Fried radius, Rytov parameter, and isoplanatic angle. Amplification of low intensity back scattered light can be achieved by coherent detection based on multi-beam interaction in a non-linear medium. The wave-function of the scattered light can then be recorded and reconstructed with phase-shifting interferometry. The proposed method offers a new tool for wavefront assessment in beam control systems for high energy lasers and other applications.

Paper Details

Date Published: 17 May 2006
PDF: 11 pages
Proc. SPIE 6215, Atmospheric Propagation III, 62150J (17 May 2006); doi: 10.1117/12.668028
Show Author Affiliations
Vladimir Markov, MetroLaser, Inc. (United States)
Anatoliy Khizhnyak, MetroLaser, Inc. (United States)
Dirk Woll, MetroLaser, Inc. (United States)
James Trolinger, MetroLaser, Inc. (United States)
Frank Eaton, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 6215:
Atmospheric Propagation III
Cynthia Y. Young; G. Charmaine Gilbreath, Editor(s)

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