Influence of turbulent atmosphere on the effect of coherent beam combining

doi:10.37188/CO.2019-0197

CIOMP OpenIR

	Influence of turbulent atmosphere on the effect of coherent beam combining
	J.-k. Song,Y.-y. Li,D.-b. Che,J. Guo,T.-f. Wang and Z.-l. Li
	2020
发表期刊	Chinese Optics
ISSN	20951531
卷号	13 期号:4 页码:884-898
摘要	Coherent beam combining is a promising technology for achieving a high-power laser beam with good beam quality. However, turbulent atmosphere is one of the key factors that restrict its application and development. This paper focuses on the influence of atmospheric Greenwood frequency on the correction effect of the coherent combination system based on Stochastic Parallel Gradient Descent (SPGD) algorithm. At first, the influence of different turbulence intensities on the correction effect of coherent combination systems is analyzed by numerical simulation under static atmospheric conditions. Then, a set of rotating phase screens that meet Kolmogorov's statistical law are generated by numerical calculation to simulate the turbulent atmosphere and study the correction effect of coherent combination system at different atmospheric Greenwood frequencies. Finally, an experimental platform is established to demonstrate the coherent combination effect of two laser beams. The simulated and experimental results show that when the system's control algorithm iteration frequency (350 Hz) is constant, the disturbance of turbulent atmosphere to the phase and light intensity of laser beams will increase with atmospheric Greenwood frequency, making the effect of coherent combination worse. Copyright 2020 Chinese Optics. All rights reserved.
DOI	10.37188/CO.2019-0197
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收录类别	EI
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64610
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J.-k. Song,Y.-y. Li,D.-b. Che,J. Guo,T.-f. Wang and Z.-l. Li. Influence of turbulent atmosphere on the effect of coherent beam combining[J]. Chinese Optics,2020,13(4):884-898.
APA	J.-k. Song,Y.-y. Li,D.-b. Che,J. Guo,T.-f. Wang and Z.-l. Li.(2020).Influence of turbulent atmosphere on the effect of coherent beam combining.Chinese Optics,13(4),884-898.
MLA	J.-k. Song,Y.-y. Li,D.-b. Che,J. Guo,T.-f. Wang and Z.-l. Li."Influence of turbulent atmosphere on the effect of coherent beam combining".Chinese Optics 13.4(2020):884-898.

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