Evolution properties of the complex degree of coherence of a partially coherent Laguerre-Gaussian beam in turbulent atmosphere

被引：17

作者：

Wang, Dandan ^{[1
]}

Wang, Fei ^{[1
]}

Cai, Yangjian ^{[1
]}

Chen, Jun ^{[2
]}

机构：

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

[2] China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou 310018, Peoples R China

来源：

JOURNAL OF MODERN OPTICS | 2012年 / 59卷 / 04期

基金：

中国国家自然科学基金;

关键词：

partially coherent Laguerre-Gaussian beam; propagation; turbulent atmosphere; SCHELL-MODEL BEAM; PROPAGATION FACTOR; AVERAGE INTENSITY; RADIATION FORCE; GENERATION; LIGHT; SCINTILLATIONS; POLARIZATION; PATTERNS; STANDARD;

D O I：

10.1080/09500340.2011.628419

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Evolution properties of the complex degree of coherence of a partially coherent Laguerre-Gaussian beam (LGB) on propagation in free space and turbulent atmosphere are studied comparatively with the help of the general propagation formula for such beam. It is found that the behavior of the complex degree of coherence of a partially coherent LGB on propagation in turbulent atmosphere is much different from that in free space and is closely related to the initial beam parameters and the structure constant of the turbulent atmosphere. The distribution of the modulus of the complex degree of coherence of the partially coherent LGB finally becomes of Gaussian distribution at long propagation distance in turbulent atmosphere, and it becomes of Gaussian distribution more slowly with the increase of the mode orders, beam width and wavelength. Our results will be useful in long-distance free-space optical communications.

引用

页码：372 / 380

页数：9

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