Self-recovery effect of orbital angular momentum mode of circular beam in weak non-Kolmogorov turbulence

被引：12
|
作者：
Zhang, Tao [1 ]
Liu, Yi-Dong [1 ]
Wang, Jiandong [1 ]
Liu, Pusheng [1 ]
Yang, Yuanjie [2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Aeronaut & Astronaut, Chengdu 611731, Peoples R China
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 18期
基金：
中国国家自然科学基金;
关键词：
GAUSSIAN LASER-BEAMS; ATMOSPHERIC-TURBULENCE; LIGHT; STATES; SPECTRUM;
D O I：
10.1364/OE.24.020507
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
It is generally true that the orbital angular momentum (OAM) mode persistently degenerate when a vortex beam propagates in the atmospheric turbulence. Here, however, we unveil an interesting self-recovery effect of OAM mode of the circular beam (CiB) in weak nonKolmogorov turbulence. We show that the CiB displays the self-focusing effect and has clear focus in the weak non-Kolmogorov turbulence if we choose proper complex parameters, and the detection probability of the original OAM mode reaches the maximum at the focus. Our study proposes a method to alleviate the turbulent effects on OAM-based communication. (C) 2016 Optical Society of America
引用
收藏
页码：20507 / 20514
页数：8
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