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Proceedings Paper

Numerical investigation of energy density fluctuation of pulsed Laguerre-Gaussian beams
Author(s): V. A. Banakh; L. O. Gerasimova; I. N. Smalikho; A. V. Falits
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Paper Abstract

The propagation of broadband femtosecond pulsed Laguerre-Gaussian beams in a turbulent atmosphere was studied. Based on the numerical solution of the parabolic wave equation for the complex spectral amplitude of the wave field by splitting method into physical factors relative variance and correlation function of the energy density fluctuations of the pulsed optical radiation were analyzed. It has been shown that with increasing optical turbulence the curves of the standard deviation of short pulse beams are reduced compared with the standard deviation of intensity fluctuations of continuous-wave radiation. The spatial structure of fluctuations of the energy density for the high-order modes Laguerre- Gaussian beam with a decrease of the pulse duration becomes more large-scale.

Paper Details

Date Published: 19 November 2015
PDF: 6 pages
Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 968012 (19 November 2015); doi: 10.1117/12.2205303
Show Author Affiliations
V. A. Banakh, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
L. O. Gerasimova, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
I. N. Smalikho, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
A. V. Falits, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 9680:
21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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