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Proceedings Paper

Compensation effectiveness analysis of low-order-correction adaptive optical system for non-Kolmogorov turbulence
Author(s): Changhui Rao; Wenhan Jiang; Ning Ling
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Paper Abstract

For non-Kolmogorov turbulence, phase structure function, residual phase structure function and long-exposure modulation transfer function (MTF) of low-order correction adaptive optical system are deduced by introducing generalized phase spatial spectrum. The analysis shows long- exposure MTF is as functions of (Beta) , which is the power- law exponent of phase power spectrum, and (rho) 0, which indicates the strength of atmospheric turbulence. Numerical results of long-exposure MTF, Strehl ratio and FWHM for different (Beta) and (rho) 0 are presented under the following conditions respectively: (1) the wavefront disturbance is not correcte,d namely open-loop; (2) the wavefront tilts are corrected; (3) one order and two order modes are corrected.

Paper Details

Date Published: 27 September 1999
PDF: 8 pages
Proc. SPIE 3762, Adaptive Optics Systems and Technology, (27 September 1999); doi: 10.1117/12.363586
Show Author Affiliations
Changhui Rao, Institute of Optics and Electronics (China)
Wenhan Jiang, Institute of Optics and Electronics (China)
Ning Ling, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 3762:
Adaptive Optics Systems and Technology
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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