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Optical and Quantum Electronics

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01-08-2019

Propagation characteristics of dark and antidark Gaussian beams in turbulent atmosphere

Authors: M. Yaalou, E. M. El Halba, Z. Hricha, A. Belafhal

Published in: Optical and Quantum Electronics | Issue 8/2019

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Abstract

In this work, we investigated theoretically the propagation characteristics of dark and antidark Gaussian beams (DADGBs) in turbulent atmosphere. Based on the Huygens–Fresnel diffraction integral and by mean of the expansion form of a hard aperture function into a finite sum of Gaussian functions we derived analytically the on-axis intensity distribution of an apertured DADGB propagating in turbulent atmosphere. The dependence of the axial intensity distribution on the turbulent strength and on the parameters of the beam is illustrated with numerical examples. The results show that the axial intensity decreases rapidly when the turbulent strength parameter is large, and the propagation distance is shorter for large wavelengths and for small beam waist width.

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Title: Propagation characteristics of dark and antidark Gaussian beams in turbulent atmosphere
Authors: M. Yaalou
E. M. El Halba
Z. Hricha
A. Belafhal
Publication date: 01-08-2019
Publisher: Springer US
Published in: Optical and Quantum Electronics / Issue 8/2019
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-019-1972-z

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