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We describe an adaptive wavefront control technique based on a parallel stochastic perturbation method that can be applied to a general class of adaptive-optical system. The efficiency of this approach is analyzed numerically and experimentally by use of a white-light adaptive-imaging system with an extended source. To create and compensate for static phase distortions, we use 127-element liquid-crystal phase modulators. Results demonstrate that adaptive wavefront correction by a parallel-perturbation technique can significantly improve image quality.
Vorontsov et al. (Sun,) studied this question.
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