Comparison of propagation of vortex and non-vortex laser beams in a random medium

Mikhail S. Kirilenko; Alexey P. Porfirev; Svetlana N. Khonina

doi:10.1117/12.2270658

6 April 2017 Comparison of propagation of vortex and non-vortex laser beams in a random medium

Mikhail S. Kirilenko, Alexey P. Porfirev, Svetlana N. Khonina

Proceedings Volume 10342, Optical Technologies for Telecommunications 2016; 103420B (2017) https://doi.org/10.1117/12.2270658
Event: XIV International Scientific and Technical Conference on Optical Technologies in Telecommunications, 2016, Samara, Russian Federation

Abstract

We study theoretically the propagation of vortex laser beams in a random medium. The study is based on the extended Huygens-Fresnel principle with the generation of a random field, using the fast Fourier transform. The simulation shows that the stability of vortex beams to fluctuations of an optical medium falls with rising order of optical vortices. A coherence length (radius) of the random medium is of great importance. The coherence radius extension affects adversely the conservation of a beam structure in the random medium. During further free-space propagation, increasing coherence enables to reduce negative effects of fluctuations for beams with high-value topological charges.

Citation Download Citation

Mikhail S. Kirilenko, Alexey P. Porfirev, and Svetlana N. Khonina "Comparison of propagation of vortex and non-vortex laser beams in a random medium", Proc. SPIE 10342, Optical Technologies for Telecommunications 2016, 103420B (6 April 2017); https://doi.org/10.1117/12.2270658

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