Analysis of propagation characteristics of combined laser in turbulent atmosphere

Huan Yang; Guochao Lao; Liangping Xue; Weixiang Gao; Wantao Deng; Huijun Xia; Jiu Chen; Tianyu Chen

doi:10.1117/12.2682035

24 May 2023 Analysis of propagation characteristics of combined laser in turbulent atmosphere

Huan Yang, Guochao Lao, Liangping Xue, Weixiang Gao, Wantao Deng, Huijun Xia, Jiu Chen, Tianyu Chen

Proceedings Volume 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023); 127060F (2023) https://doi.org/10.1117/12.2682035
Event: First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 2023, Shanghai, China

Abstract

During the propagation of array laser in the atmosphere, due to the influence of atmospheric coherence length, average wind velocity and laser duration, the beam quality in the far field will be reduced. In this paper, an array laser propagation model and a dynamic atmospheric turbulence phase screen are constructed. The peak intensity and the circumferential intensity are used as the criteria to evaluate the beam quality degradation of coherent and incoherent lasers in the far field. The results show that the beam quality of coherent combining is better than that of incoherent combining in a short laser duration; However, the beam quality of incoherent and coherent combination decreases and approaches gradually with the increase of laser duration. The researches can provide basic support for selecting the best beam combining mode when the high-power laser system is used in different environments.

Citation Download Citation

Huan Yang, Guochao Lao, Liangping Xue, Weixiang Gao, Wantao Deng, Huijun Xia, Jiu Chen, and Tianyu Chen "Analysis of propagation characteristics of combined laser in turbulent atmosphere", Proc. SPIE 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 127060F (24 May 2023); https://doi.org/10.1117/12.2682035

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