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Proceedings Paper

Distortion of light beam and correction of adaptive optics in the atmosphere
Author(s): Zhengfang Song
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Paper Abstract

This article reviews the relation between spatial-temporal characteristic of atmospheric perturbation and several parameters of adaptive optics system. The altitude profile models of atmospheric turbulence intensity and turbulent outer scale, as well as wind velocity, are presented. Based on these models the transverse coherence length, the isoplanatic angle, and the critical time constant are calculated. Some properties of which are indicated. The internal errors of an adaptive optics system are discussed. The typical value of each error is presented. Lastly, the Strehl ratio of an adaptive optics system is considered.

Paper Details

Date Published: 31 May 1994
PDF: 6 pages
Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); doi: 10.1117/12.176054
Show Author Affiliations
Zhengfang Song, Anhui Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 2201:
Adaptive Optics in Astronomy
Mark A. Ealey; Fritz Merkle, Editor(s)

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