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

DongLing Xu; Peng Yue; Xiang Yi

doi:10.1117/12.2551464

31 January 2020 Propagation of the Bessel-Gaussian beams generated by coherent beam combining in oceanic turbulence

DongLing Xu, Peng Yue, Xiang Yi

Proceedings Volume 11427, Second Target Recognition and Artificial Intelligence Summit Forum; 114271G (2020) https://doi.org/10.1117/12.2551464
Event: Second Target Recognition and Artificial Intelligence Summit Forum, 2019, Changchun, China

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.

Citation Download Citation

DongLing Xu, Peng Yue, and Xiang Yi "Propagation of the Bessel-Gaussian beams generated by coherent beam combining in oceanic turbulence", Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114271G (31 January 2020); https://doi.org/10.1117/12.2551464

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