Method of evaluation of the mutual coherence function of laser beams and its application for symmetric dark hollow beams

V. A. Banakh; D. A. Marakasov; D. S. Rytchkov; Y. K. Baykal; H. T. Eyyuboğlu

doi:10.1117/12.876486

10 February 2011 Method of evaluation of the mutual coherence function of laser beams and its application for symmetric dark hollow beams

V. A. Banakh, D. A. Marakasov, D. S. Rytchkov, Y. K. Baykal, H. T. Eyyuboğlu

Author Affiliations +

Proceedings Volume 7924, Atmospheric and Oceanic Propagation of Electromagnetic Waves V; 792406 (2011) https://doi.org/10.1117/12.876486
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

In our report, a method of evaluation of the mutual coherence function (MCF) of optical wave propagating in turbulent atmosphere is proposed. The method is based on using inverse Fresnel transform and 2-D Fast Fourier Transformation procedure (FFT) and provides a high accuracy in various propagation conditions from weak up to strong optical turbulence regime. This technique allows significantly reducing the evaluation time of MCF. The proposed method is suitable for optical waves with arbitrary initial distribution of amplitude and phase. Results of investigations on the degradation of coherence of symmetric dark hollow beams (DHB) propagating in turbulent atmosphere are presented. Analysis of evolution of MCF is brought up, and some characteristics of DHB, such as mean intensity distribution, and moments of Wigner distribution are calculated for various kinds of profiles of structural characteristic of refractive index. All of the evaluations for DHB are fulfilled for Kolmogorov spectrum of correlation function of refractive index fluctuations. The comparison between mean intensity calculations within the proposed method and method based on semi-analytical approach using of quadratic approximation of spherical wave structure function, is presented.

Citation Download Citation

V. A. Banakh, D. A. Marakasov, D. S. Rytchkov, Y. K. Baykal, and H. T. Eyyuboğlu "Method of evaluation of the mutual coherence function of laser beams and its application for symmetric dark hollow beams", Proc. SPIE 7924, Atmospheric and Oceanic Propagation of Electromagnetic Waves V, 792406 (10 February 2011); https://doi.org/10.1117/12.876486

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