20 Gbps Free-Space Optical Chaotic Communication Based on Orbital Angular Momentum Multiplexing

Yiqun Zhang,Ning Jiang, Anran Li,Mengjie Zhou,Shuangcheng Chen, Jiazheng Ding,Gang Hu,Yongsheng Cao,Kun Qiu

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)（2023）

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摘要

We experimentally demonstrate a free-space all-optical chaotic communication system that enhances transmission capacity and security by orbital angular momentum (OAM) multiplexing. Optical chaotic signals with two different OAM modes carrying 20 Gbps on-off keying signals are secretly transmitted over a 2 m free-space link. Our work may inspire structured light application in optical chaos and pave a new way for developing future high-capacity free-space chaotic secure communication systems.

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关键词

Optical chaotic communication,Orbital angular momentum,Structured light manipulation,Optical encryption

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