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Proceedings Paper

Propagation of the Bessel-Gaussian beams generated by coherent beam combining in oceanic turbulence
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Paper Abstract

Coherent beam combining (CBC) is recently used to generate high power vortex beams which are strongly required in specific applications. In this paper, based on the extended HuygensFresnel principle, the exact theoretical forms for the intensity distribution of the CBC Bessel-Gaussian beams (BGBs) in turbulent ocean are derived. To show the superiority of CBC BGBs in turbulent channels, the comparison in the intensity evolution of the CBC BGBs with the ideal BGBs is performed. It is found that the beam spreading of the CBC BGBs is smaller than that of the ideal BGBs under the same oceanic turbulence conditions. Moreover, the effect of the different optical source parameter on the quality of the CBC BGBs is also analyzed. The results show that the increasing number of the beamlets causes the optical energy to be more concentrated, and thus leading to a longer non-diffraction propagation distance.

Paper Details

Date Published: 31 January 2020
PDF: 11 pages
Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114271G (31 January 2020);
Show Author Affiliations
DongLing Xu, Xidian Univ. (China)
Peng Yue, Xidian Univ. (China)
Xiang Yi, Xidian Univ. (China)

Published in SPIE Proceedings Vol. 11427:
Second Target Recognition and Artificial Intelligence Summit Forum
Tianran Wang; Tianyou Chai; Huitao Fan; Qifeng Yu, Editor(s)

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