Second-order moments of a multi-Gaussian Schell-model beam in a turbulent atmosphere

被引：49

作者：

Du, Shengcai ^{[1
]}

Yuan, Yangsheng ^{[1
]}

Liang, Chunhao ^{[1
]}

Cai, Yangjian ^{[1
]}

机构：

[1] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2013年 / 50卷

基金：

中国国家自然科学基金;

关键词：

Mult-Gaussian Schell-model beam; Turbulent atmosphere; Second-order moments; DARK HOLLOW BEAMS; FLAT-TOPPED BEAMS; PARTIALLY COHERENT BEAMS; SCINTILLATION INDEX; AVERAGE INTENSITY; PROPAGATION FACTOR; GENERAL BEAMS; POLARIZATION;

D O I：

10.1016/j.optlastec.2013.01.027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The multi-Gaussian Schell-model (MGSM) beam was introduced recently [Opt. Lett. 37, 2970 (2012); J. Opt. Soc. Am. A 29, 2159 (2012)]. In this paper, we derive analytical expressions for the second-order moments of the Wigner distribution function of a MGSM beam in a turbulent atmosphere based on the extended Huygens-Fresnel integral. With the help of the derived formulae, the evolution properties of the propagation factor and the effective radius of curvature of a MGSM beam in a turbulent atmosphere are studied in detail. Our results show that a MGSM beam is affected less by the atmospheric turbulence than a GSM beam, which will be useful in long-distance free-space optical communications. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：14 / 19

页数：6

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