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Proceedings Paper

Effect of anisotropy on the radius of curvature and Rayleigh range of a general-type partially coherent beam in oceanic turbulence
Author(s): Xingrong Zheng; Wenyu Fu
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Paper Abstract

In view of the previous work, the effective radius of curvature (ERC) and Rayleigh range zR of a general-type partially coherent beam propagating are studied in anisotropic oceanic turbulence. Based on the extended Huygens–Fresnel integral, we derive the formulae of the second-order moments of Wigner distribution function (WDF) in anisotropic oceanic turbulence. The calculation results reveal that turbulent anisotropy has a sharp impact on both the ERC and Rayleigh range for a general-type beam. In the near field, the effect of anisotropic oceanic turbulence on the ERC is distinct. With the increase of propagation distance, these influence on the ERC gradually weaken, and can be ignored in the far field. In addition, zR is always larger than that of the conventional Gaussian-Shell model beam in anisotropic oceanic turbulence. And these results will be useful in optical underwater communication.

Paper Details

Date Published: 31 January 2020
PDF: 13 pages
Proc. SPIE 11427, Second Target Recognition and Artificial Intelligence Summit Forum, 114271P (31 January 2020);
Show Author Affiliations
Xingrong Zheng, Long Dong Univ. (China)
Wenyu Fu, Long Dong 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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