Analysis of the propagation of flat-topped beam with various beam orders through turbulent atmosphere

被引：58
|
作者：
Alavinejad, M. [1 ]
Ghafary, B. [1 ]
Kashani, F. D. [1 ]
机构：
[1] Iran Univ Sci & Technol, Dept Phys, Photon Lab, Tehran, Iran
来源：
OPTICS AND LASERS IN ENGINEERING | 2008年 / 46卷 / 01期
关键词：
flat-topped beam; Propagation; Turbulence and order of flat-topped beam;
D O I：
10.1016/j.optlaseng.2007.07.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Propagation of flat-topped beam with circular symmetry in a turbulent atmosphere is investigated and has led to the development of an analytical formula for the average intensity. Detailed analyses of flat-topped beams demonstrate that higher order flat-topped beams are less affected from turbulence in the media. Also an analytical formula for beam width of flat-topped beams propagating through turbulent atmosphere is derived which shows that higher order flat-topped beams are less broadened. We also compute Strehl ratio which evidently proves validation of the above discussion for any propagation distance. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1 / 5
页数：5
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