Double-deformable-mirror adaptive optics system for laser beam cleanup using blind optimization | Zendy

Xiang Lei | Zendy; Shuai Wang | Zendy; Yan Hu | Zendy; Wenjin Liu | Zendy; Lizhi Dong | Zendy; Ping Yang | Zendy; Bing Xu | Zendy

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Double-deformable-mirror adaptive optics system for laser beam cleanup using blind optimization

Author(s) -

Xiang Lei,

Shuai Wang,

Yan Hu,

Wenjin Liu,

Lizhi Dong,

Ping Yang,

Bing Xu

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.022143

Subject(s) - deformable mirror , wavefront , optics , adaptive optics , laser , image quality , wavefront sensor , beam (structure) , laser beam quality , laser beams , diffraction , computer science , physics , artificial intelligence , image (mathematics)

An optimization-based correction method is developed to control simultaneously two deformable mirrors in a wavefront-sensor-less adaptive beam cleanup system, where the wave-front aberrations could not be compensated by a single deformable mirror. Stochastic parallel gradient decent algorithm is chosen as the optimization algorithm. In this control method, different aberrations are assigned to each deformable mirror according to their different correction quality. The method is proved to be effective by numerical simulations as well as experiments. Experimental results showed that the area containing 84% energy of the laser beam in the far-field can reach 3.0 times diffraction limited.

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