Theoretical and experimental studies of polarization fluctuations over atmospheric turbulent channels for wireless optical communication systems

被引:35
作者
Zhang, Jiankun [1 ]
Ding, Shengli [1 ]
Zhai, Huili [1 ]
Dang, Anhong [1 ]
机构
[1] Peking Univ, Dept Elect, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China
来源
OPTICS EXPRESS | 2014年 / 22卷 / 26期
基金
中国国家自然科学基金;
关键词
LASER-BEAM; PROBABILITY DENSITY; DEPOLARIZATION; TRANSMISSION; PROPAGATION; PERFORMANCE;
D O I
10.1364/OE.22.032482
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In wireless optical communications (WOC), polarization multiplexing systems and coherent polarization systems have excellent performance and wide applications, while its state of polarization affected by atmospheric turbulence is not clearly understood. This paper focuses on the polarization fluctuations caused by atmospheric turbulence in a WOC link. Firstly, the relationship between the polarization fluctuations and the index of refraction structure parameter is introduced and the distribution of received polarization angle is obtained through theoretical derivations. Then, turbulent conditions are adjusted and measured elaborately in a wide range of scintillation indexes (SI). As a result, the root-mean-square (RMS) variation and probability distribution function (PDF) of polarization angle conforms closely to that of theoretical model. (C) 2014 Optical Society of America
引用
收藏
页码:32482 / 32488
页数:7
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