Wavefront correction of laser beam distorted by fan heater turbulence using an adaptive optical system with a frequency of 2000 Hz

被引：0
|
作者：
Rukosuev, A. L. [1 ]
Belousov, V. N. [2 ]
Nikitin, A. N. [1 ]
Sheldakova, Yu, V [1 ]
Kudryashova, A., V [1 ,3 ]
Bogachev, V. A. [4 ]
Volkov, M. V. [4 ]
Garanin, S. G. [4 ]
Starikov, F. A. [4 ]
机构：
[1] Inst Geosphere Dynam IDG RAS, Leninsky Prospekt 38,Bld 1, Moscow 119334, Russia
[2] LLC Lyratech, Bld 16,Apt 4,Room 3, Moscow 115191, Russia
[3] Moscow Polytech, Bolshaya Semyonovskaya Str 38, Moscow 107023, Russia
[4] Russian Fed Nucl Ctr VNIIEF, Inst Laser Phys Res, Sarov 607188, Nizhny Novgorod, Russia
来源：
FREE-SPACE LASER COMMUNICATIONS XXXIII | 2021年 / 11678卷
关键词：
Free-space communication; fast adaptive optical system; deformable mirror; FPGA; wavefront aberrations;
D O I：
10.1117/12.2578143
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：
The results of experiments conducted on a laboratory setup of a fast adaptive optical system based on the use of FPGA as the main control element and a bimorph mirror as a wavefront corrector are presented. The adaptive system bandwidth ranged from a dozen Hertz to 2,000 Hertz. For independent control of the quality of correction the intensity distribution in the far field was recorded. It is shown that for a good correction of the wavefront the system bandwidth should be an order of magnitude higher than the upper boundary of the spectrum of wavefront distortions caused by turbulence. A comparison of the model and experimental data is also presented.
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页数：5
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