Demonstration of high-dimensional free-space data coding/decoding through multi-ring optical vortices

被引：0
|
作者：
付时尧 [1 ,2 ,3 ]
翟焱望 [1 ,3 ]
周恒 [1 ,3 ]
张建强 [1 ,3 ]
殷慈 [1 ,3 ]
高春清 [1 ,3 ]
机构：
[1] School of Optics and Photonics Beijing Institute of Technology
[2] Institute of Advanced Structure Technology Beijing Institute of Technology
[3] Key Laboratory of Photoelectronic Imaging Technology and System Ministry of Education
来源：
Chinese Optics Letters | 2019年 / 17卷 / 08期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
OAM; pro; Demonstration of high-dimensional free-space data coding/decoding through multi-ring optical vortices;
D O I：
暂无
中图分类号：
O436 [物理光学（波动光学）];
学科分类号：
070207 ; 0803 ;
摘要：
Multi-ring optical vortices are a kind of structured beams that carry orbital angular momentum(OAM) and have concentrical doughnut intensity distributions. In this Letter, we present both theoretically and experimentally a scheme that employs the dimensions of both the OAM states and radial index of multi-ring optical vortices simultaneously to accomplish high-dimensional free-space data coding/decoding transmissions. Such a scheme can further improve the coding efficiency when limited OAM states are available. In the proof-ofconcept experiment, 64-ary coding/decoding employing 16 OAM states and four radial indices are present. Also,the coding/decoding performance when facing various atmosphere turbulences is evaluated. Furthermore, a 64 × 64 gray image(totally, 32,768 bits) is also transmitted through multi-ring optical vortices coding in free-space successfully, showing good transmission performance.
引用
收藏
页码：20 / 24
页数：5
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