Bispectral analysis of intensity fluctuations of optical waves propagation in turbulent atmosphere

Igor P. Lukin

doi:10.1117/12.675232

21 April 2006 Bispectral analysis of intensity fluctuations of optical waves propagation in turbulent atmosphere

Igor P. Lukin

Proceedings Volume 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics; 61600O (2006) https://doi.org/10.1117/12.675232
Event: Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2005, Tomsk, Russian Federation

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.

Citation Download Citation

Igor P. Lukin "Bispectral analysis of intensity fluctuations of optical waves propagation in turbulent atmosphere", Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61600O (21 April 2006); https://doi.org/10.1117/12.675232

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available