Liís flattened Gaussian beams PROPAGATION

IN MARITIME ATMOSPHERIC TURBULENCE

 

F. Khannous1, M. Boustimi2, H. Nebdi1, A. Belafhal1*

1Laboratory of Nuclear, Atomic and Molecular Physics
Department of Physics, Faculty of Sciences, ChouaÔb Doukkali University,

P. B.:20, 24000 El Jadida, Morocco

2Physics Department, College of Applied Sciences, Umm Al-Qura University,

P.O. Box : 715 , Makkah 21955, Saudi Arabia.

* Corresponding authors: belafhal@gmail.com

Received: 09 March 2014; revised version accepted: 21 July 2014

 

Abstract

     We have used the power spectrum of refractive index introduced by Grayshan to study the effect of atmospheric turbulence on Liís Flattened Gaussian (LFG) beams propagating in a maritime medium. This spectrum showed a characteristic bump that resembles to Hillís bump when the product of the wave number with the inner scale is approximately unity. In this work, for weak turbulence, we have calculated and analyzed the following propagation parameters: the long term beam spread, the beam wander and the Strehl ratio of LFG beams propagating through maritime atmospheric turbulence.

 

Keywords: Maritime atmospheric turbulence; Liís Flattened Gaussian Beams; Long term beam spread; Beam wander; Strehl ratio.

 


 

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