Beam wander of electromagnetic partially coherent flat-topped beam propagating in turbulent atmosphere

被引：7
|
作者：
Sharifi, Mehdi [1 ,2 ]
Wu, Guohua [3 ]
Luo, Bin [1 ,2 ]
Dang, Anhong [1 ,2 ]
Guo, Hong [1 ,2 ]
机构：
[1] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China
[2] Peking Univ, Sch Elect Engn & Comp Sci, Inst Quantum Elect, Beijing 100871, Peoples R China
[3] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
OPTIK | 2014年 / 125卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Electromagnetic flat-topped beam; Beam wander; Turbulent atmosphere; SCINTILLATION INDEX; POLARIZATION;
D O I：
10.1016/j.ijleo.2013.07.025
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Beam wander of an electromagnetic partially coherent flat-topped (EPCFT) beam propagating through turbulent atmosphere is studied. The analytical expression of beam wander effect is obtained. The influence of source size, source spatially coherent lengths, degree of polarization, and beam flatness order are studied in detail. It has been shown that by adjusting these parameters appropriately, the beam wander effects could be greatly reduced. Compared with increasing the degree of polarization, the beam wander could be reduced much more effectively by increasing the beam flatness order. The EPCFT beam can greatly reduce the beam wander effect and the parameters should be chosen very carefully for different applications. (C) 2013 Elsevier GmbH. All rights reserved.
引用
收藏
页码：561 / 564
页数：4
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