27 September 1999 Compensation effectiveness analysis of low-order-correction adaptive optical system for non-Kolmogorov turbulence
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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.
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Changhui Rao, Changhui Rao, Wenhan Jiang, Wenhan Jiang, Ning Ling, Ning Ling, "Compensation effectiveness analysis of low-order-correction adaptive optical system for non-Kolmogorov turbulence", Proc. SPIE 3762, Adaptive Optics Systems and Technology, (27 September 1999); doi: 10.1117/12.363586; https://doi.org/10.1117/12.363586
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