Compensation of a distorted N-fold orbital angular momentum multicasting link using adaptive optics

被引：81
作者：
Li, Shuhui [1 ]
Wang, Jian [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China
来源：
OPTICS LETTERS | 2016年 / 41卷 / 07期
基金：
中国国家自然科学基金;
关键词：
TURBULENCE COMPENSATION;
D O I：
10.1364/OL.41.001482
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By using an adaptive feedback correction technique, we experimentally demonstrate turbulence compensation for free-space four-fold and eight-fold 16-ary quadrature amplitude modulation (16-QAM) carrying orbital angular momentum (OAM) multicasting links. The performance of multicasted OAM beams through emulated atmospheric turbulence and adaptive optics assisted compensation loop is investigated. The experimental results show that the scheme can efficiently compensate for the atmospheric turbulence induced distortions, i.e., reducing power fluctuation ofmulticasted OAM channels, suppressing inter-channel crosstalk, and improving the biterror rate (BER) performance. (C) 2016 Optical Society of America
引用
收藏
页码：1482 / 1485
页数：4
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