Experimental demonstration of an 8-Gbit/s free-space secure optical communication link using all-optical chaos modulation

被引：15
|
作者：
Zhang, Yiqun [1 ,2 ]
Xu, Mingfeng [1 ,3 ]
Pu, Mingbo [1 ,3 ,4 ]
Chen, Qiang [1 ,4 ]
Zhou, Mengjie [5 ]
Chen, Shuangcheng [5 ]
Qiu, Kun [2 ]
Jiang, Ning [2 ]
Luo, Xiangang [1 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nano Fabricat & Microeng, Chengdu, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Peoples R China
[3] Chinese Acad Sci, Inst Opt & Elect, Res Ctr Vector Opt Fields, Chengdu 610209, Peoples R China
[4] Univ Chinese Acad Sci, Sch Optoelect, Beijing 100049, Peoples R China
[5] Tianfu Xinglong Lake Lab, Chengdu 610299, Peoples R China
来源：
OPTICS LETTERS | 2023年 / 48卷 / 06期
基金：
中国国家自然科学基金;
关键词：
100-KM FIBER TRANSMISSION; SYNCHRONIZATION; ENCRYPTION; LASER;
D O I：
10.1364/OL.483353
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
For the first time, to the best of our knowledge, we experi-mentally demonstrate a high-speed free-space secure optical communication system based on all-optical chaos modu-lation. The effect of atmospheric turbulence on optical chaos synchronization is experimentally investigated via a hot air convection atmospheric turbulence simulator. It is shown that, even under moderately strong turbulent condi-tions, high-quality chaos synchronization could be obtained by increasing the transmission power. Moreover, a secure encryption transmission experiment using a high bias cur-rent induced chaotic carrier for 8-Gbit/s on-off-keying data over a similar to 10-m free-space optical link is successfully demon-strated, with a bit-error rate below the FEC threshold of 3.8 x 10-3. This work favorably shows the feasibility of opti-cal chaotic encryption for the free-space optical transmission system.(c) 2023 Optica Publishing Group
引用
收藏
页码：1470 / 1473
页数：4
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