Chaotic optical communications over 100-km fiber transmission at 30-Gb/s bit rate

被引：181
作者：
Ke, Junxiang [1 ]
Yi, Lilin [1 ]
Xia, Guangqiong [2 ]
Hu, Weisheng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Shanghai Inst Adv Commun & Data Sci, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
[2] Southwest Univ, Sch Phys, Chongqing 400715, Peoples R China
来源：
OPTICS LETTERS | 2018年 / 43卷 / 06期
基金：
中国国家自然科学基金;
关键词：
TIME-DELAY SIGNATURE; WIDE-BAND CHAOS; PHASE DYNAMICS; LASERS; FEEDBACK; SYNCHRONIZATION; GENERATION; DIODE;
D O I：
10.1364/OL.43.001323
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 experimentally demonstrate a successful 30-Gb/s signal transmission of a duobinary message hidden in a chaotic optical carrier over 100-km fiber. Thanks to the duobinary modulation format with high spectral efficiency, the 30-Gb/s signal can be encrypted by a 10-GHz-wide chaotic carrier. A digital signal processing technique can be used to convert duobinary data into binary data on the receiver side. This proposal lowers the requirement for wideband chaos generation and synchronization in high-speed long-distance chaotic optical communications, and fiber dispersion compensation can also be simplified, which has potential to be used in high-speed long-distance secure optical communications. (C) 2018 Optical Society of America
引用
收藏
页码：1323 / 1326
页数：4
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