Bimorph vs stacked actuator deformable mirror for laser beam focusing through a moderately scattering medium

被引：3
|
作者：
Galaktionov, Ilya [1 ]
Sheldakova, Julia [1 ]
Toporovsky, Vladimir [1 ,2 ]
Samarkin, Vadim [1 ]
Kudryashov, Alexis [1 ,2 ]
机构：
[1] Inst Geosphere Dynam IDG RAS, Leninskiy Ave 38,Bld 1, Moscow 119334, Russia
[2] Moscow Polytech, Bolshaya Semenovskaya Str 38, Moscow 107023, Russia
来源：
LASER RESONATORS, MICRORESONATORS, AND BEAM CONTROL XXIII | 2021年 / 11672卷
基金：
俄罗斯科学基金会;
关键词：
scattering medium; laser beam focusing; Shack-Hartmann sensor; bimorph mirror;
D O I：
10.1117/12.2577604
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Bimorph and stacked actuator deformable mirrors were used to increase the efficiency of focusing of partially coherent laser radiation, propagated through the scattering suspension that was equivalent to the middle-density fog layer with the length ranging from 300-500 meters up to 5 kilometers. We used Shack-Hartmann sensor to measure the averaged wavefront distortions and CCD camera to estimate the intensity distribution of the focal spot in the far-field. Numerical and experimental investigations of focusing improvement demonstrated that it is possible to increase the peak intensity of the focal spot by more than 60 %.
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页数：5
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