Distribution of field amplitude fluctuations at the larger than unit relative variance of intensity fluctuations

Valerii P. Aksenov; Valeriy V. Kolosov

doi:10.1117/12.2504886

13 December 2018 Distribution of field amplitude fluctuations at the larger than unit relative variance of intensity fluctuations

Valerii P. Aksenov, Valeriy V. Kolosov

Author Affiliations +

Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108332V (2018) https://doi.org/10.1117/12.2504886
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

The distribution laws of fluctuations of the field amplitude and intensity of laser beams propagating through the atmosphere are studied based on numerical simulation. The calculations are performed for the beams having the orbital angular momentum (vortex beams) at different points of their cross section. The transformation of probability densities of fluctuations of the field amplitude and intensity of the beams is studied for the relative variance of intensity fluctuations (scintillation index) varying from unity to three. It is shown that if the scintillation index has the same values at different points of the beam, the probability density of intensity has the same form, whereas the probability density of the real and imaginary parts of the field amplitude can differ.

Citation Download Citation

Valerii P. Aksenov and Valeriy V. Kolosov "Distribution of field amplitude fluctuations at the larger than unit relative variance of intensity fluctuations", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108332V (13 December 2018); https://doi.org/10.1117/12.2504886

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