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Proceedings Paper

Adaptive compensation of nonlinear laser beam distortion in turbulent atmosphere: optimal algorithms and ultimate possibilities
Author(s): Sergei S. Chesnokov; Irina V. Davletshina
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Paper Abstract

Overview of the works performed in Moscow State University and devoted to phase compensation of thermal defocusing and turbulent blooming of light beams propagating in natural media is given in this paper. General approach to wavefront optimization is illustrated by the example of stationary wind refraction in regular medium. Model control is considered with respect to attainment of objective function extremum with given accuracy. The main concern is with the study of simplex method applicability to problem of wavefront control. Comparison analysis of effectiveness of simplex method and gradient procedure is carried out. The regime of stationary and nonstationary wind refraction, pulsations of wind velosity and large-scale fluctuations of refractive index are considered.

Paper Details

Date Published: 29 June 1994
PDF: 14 pages
Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); doi: 10.1117/12.178010
Show Author Affiliations
Sergei S. Chesnokov, Moscow State Univ. (Russia)
Irina V. Davletshina, Moscow State Univ. (Russia)

Published in SPIE Proceedings Vol. 2222:
Atmospheric Propagation and Remote Sensing III
Walter A. Flood; Walter B. Miller, Editor(s)

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