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
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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