Adaptive correction of thermal distortions of multichannel laser radiation F. Y. Kanev, N. A. Makenova, V. P. Lukin [et al.]
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ArticleSubject(s): адаптивная оптика | фазовое сопряжение | управление волновым фронтом пучка | многоканальное лазерное излучение | тепловые искаженияGenre/Form: статьи в журналах Online resources: Click here to access online
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Atmospheric and oceanic optics Vol. 31, № 3. P. 238-242Abstract: Results of the simulation of multichannel radiation propagation under conditions of thermal blooming are presented. The correction of nonlinear thermal distortion by means of the beam phase and amplitudephase control is considered. The results show the dependence of the correction effectiveness on the number of channels and on the precision of the reference beam phase retrieval. An additional increase in the effectiveness is possible by means of adjustment of amplification in the channels of the optical system, i.e., with the use of amplitude-phase control over the beam wavefront.
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Results of the simulation of multichannel radiation propagation under conditions of thermal blooming are presented. The correction of nonlinear thermal distortion by means of the beam phase and amplitudephase control is considered. The results show the dependence of the correction effectiveness on the number of channels and on the precision of the reference beam phase retrieval. An additional increase in the effectiveness is possible by means of adjustment of amplification in the channels of the optical system, i.e., with the use of amplitude-phase control over the beam wavefront.
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