Average intensity and spreading of an elegant Hermite-Gaussian beam in turbulent atmosphere

被引：54
|
作者：
Yuan, Yangsheng [1 ,2 ]
Cai, Yangjian [1 ]
Qu, Jun [2 ]
Eyyuboglu, Halil T. [3 ]
Baykal, Yahya [3 ]
机构：
[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[2] Anhui Normal Univ, Dept Phys, Wuhu 241000, Peoples R China
[3] Cankaya Univ, Dept Elect & Commun Engn, TR-06530 Balgat Ankara, Turkey
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 13期
关键词：
STOCHASTIC ELECTROMAGNETIC BEAMS; COMPLEX SOURCE POINTS; PROPAGATION CHARACTERISTICS; PARAXIAL PROPAGATION; MODES; SYSTEMS; ORDER; DIFFRACTION; GENERATION; MULTIPOLES;
D O I：
10.1364/OE.17.011130
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The propagation of an elegant Hermite-Gaussian beam (EHGB) in turbulent atmosphere is investigated. Analytical propagation formulae for the average intensity and effective beam size of an EHGB in turbulent atmosphere are derived based on the extended Huygens-Fresnel integral. The corresponding results of a standard Hermite-Gaussian beam (SHGB) in turbulent atmosphere are also derived for the convenience of comparison. The intensity and spreading properties of EHGBs and SHGBs in turbulent atmosphere are studied numerically and comparatively. It is found that the propagation properties of EHGBs and SHGBs are much different from their properties in free space, and the EHGB and SHGB with higher orders are less affected by the turbulence. What's more, the SHGB spreads more rapidly than the EHGB in turbulent atmosphere under the same conditions. Our results will be useful in long-distance free-space optical communications. (C) 2009 Optical Society of America
引用
收藏
页码：11130 / 11139
页数：10
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