Long-term beamwidth and quivering of a modified Bessel Gaussian Schell vortex beam in oceanic turbulence

Qiyong Liang; Yixin Zhang; Shibao Deng; Lin Yu

doi:10.1117/12.2543853

20 December 2019 Long-term beamwidth and quivering of a modified Bessel Gaussian Schell vortex beam in oceanic turbulence

Qiyong Liang, Yixin Zhang, Shibao Deng, Lin Yu

Author Affiliations +

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 1120918 (2019) https://doi.org/10.1117/12.2543853
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

The long-term beamwidth and quivering of modified Bessel Gaussian Schell vortex beam in oceanic turbulence are derived based on the extended Huygens-Fresnel principle. With the help of these models, we analyze the effect of vortex beam and turbulence parameters on long-term beamwidth and beam quivering. We find that modified Bessel Gaussian Schell vortex beam has smaller beam quivering when beam has higher orbital angular momentum quantum number, larger beam waist, larger width parameter, longer wavelength and lower coherent length. We also find that turbulence of large temperature-salinity contribution ratio, large inner scale of turbulence, large outer scale of turbulence and small rate of dissipation of the kinetic energy per unit mass of fluid is more likely to cause beam quivering. The variation trends of long-term beamwidth with beam parameters are opposite to that of beam quivering.

Citation Download Citation

Qiyong Liang, Yixin Zhang, Shibao Deng, and Lin Yu "Long-term beamwidth and quivering of a modified Bessel Gaussian Schell vortex beam in oceanic turbulence", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 1120918 (20 December 2019); https://doi.org/10.1117/12.2543853

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