Share Email Print
cover

Proceedings Paper

Bispectral analysis of intensity fluctuations of optical waves propagation in turbulent atmosphere
Author(s): Igor P. Lukin
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The theoretical research of possibilities of the bispectral analysis of intensity fluctuations of the optical wave propagation in turbulent atmosphere is studied. The propagation of a plane optical wave in an approximation of a model of a thin phase screen in the turbulence with the pure Kolmogorov spectrum of fluctuations of a dielectric permittivity of atmosphere is considered. Cases of "weak" and "strong" intensity fluctuations of an optical wave asymptotically were studied. Is shown, that the bispectrum of intensity fluctuations of the plane wave propagation in turbulent atmosphere, in area of "weak" fluctuations is equal to zero, and in area of "strong" fluctuations has a two-scale character. The high frequency asymptotic of bispectrum for area of "strong" intensity fluctuations of an optical wave has a description of a bell-shaped surface with a characteristic scale determined to a size of speckle. The characteristic frequency of this asymptotic of spectrum is determined by the radius of a coherence of a plane wave in an atmospheric turbulence and the transversal to direction of propagation component velocities of a wind on a path of propagation. In the same conditions the low-frequency asymptotic of bispectrum is determined to a by second of scale, related with a diffraction on a radius of a coherence of a plane wave in turbulent atmosphere.

Paper Details

Date Published: 21 April 2006
PDF: 9 pages
Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61600O (21 April 2006); doi: 10.1117/12.675232
Show Author Affiliations
Igor P. Lukin, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 6160:
Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gelii A. Zherebtsov; Gennadii G. Matvienko, Editor(s)

© SPIE. Terms of Use
Back to Top