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Proceedings Paper

Statistical characteristics of spatial fluctuations in intensity of dispersed laser beams
Author(s): V. I. Odintsov; O. M. Vokhnik
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Paper Abstract

The statistical characteristics of spatial fluctuations of the intensity of dispersed laser beams are studied theoretically. The density of the probability distribution for the intensity is found and its transformation with a change in the longitudinal coordinate is studied. It is shown that a decrease in the intensity fluctuations and a drop in the contrast of the beam speckle structure occur with increasing distance from the initial plane in which the spatially inhomogeneous broadband field is assumed to be spatially coherent. A decrease in fluctuations is accompanied by an increase in the size of speckles in the direction of dispersion, as well as along the beam axis. An interpretation of the found regularities is given.

Paper Details

Date Published: 7 February 2011
PDF: 10 pages
Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 799407 (7 February 2011); doi: 10.1117/12.880927
Show Author Affiliations
V. I. Odintsov, M.V. Lomonosov Moscow State Univ. (Russian Federation)
O. M. Vokhnik, M.V. Lomonosov Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 7994:
LAT 2010: International Conference on Lasers, Applications, and Technologies
Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov, Editor(s)

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