Experimental demonstration of 8190-km long-haul semiconductor-laser chaos synchronization induced by digital optical communication signal  

作　　者：Anbang Wang Junli Wang Lin Jiang Longsheng Wang Yuncai Wang Lianshan Yan Yuwen Qin 

机构地区：[1]Key Laboratory of Photonic Technology for Integrated Sensing and Communication,Ministry of Education of China,Guangdong University of Technology,Guangzhou 510006,China [2]Key Laboratory of Advanced Transducers and Intelligent Control System,Ministry of Education and Shanxi Province,Taiyuan 030024,China [3]institute of Advanced Photonics Technology,School of Information Engineering,Guangdong University of Technology,Guangzhou 510006,China [4]Guangdong Provincial Key Laboratory of Information Photonics Technology,Guangdong University of Technology,Guangzhou 510006,China [5]College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,China [6]Center for Information Photonics and Communications,Southwest Jiaotong University,Chengdu 610031,China

出　　处：《Light(Science & Applications)》2025年第2期333-343,共11页光(科学与应用)(英文版)

基　　金：supported by National Natural Science Foundation of China(62035009,U22A2087);the Program for Guangdong Introducing Innovative and Entrepreneurial Teams of"The Pearl River Talent Recruitment Program"(2019ZT08X340);The Major Key Project of PCL(PCL2021A14);Shanxi"1331 Project"Key Innovative Team;Development Fund in Science and Technology of Shanxi Province(YDZJSX2021A009).

摘　　要：Common-signal-induced synchronization of semiconductor lasers have promising applications in physical-layer secure transmission with high speed and compatibility with the current fiber communication.Here,we propose an ultra-long-distance laser synchronization scheme by utilizing random digital optical communication signal as the common drive signal.By utilizing the long-haul optical coherent communication techniques,high-fdelity fiber transmission of the digital drive can be achieved and thus ultra-long-distance synchronization is expected.Experiments were implemented with distributed feedback lasers injected by a random-digital phase-modulated drive light.Results show that high-quality synchronization can be achieved as the drive signal rate is larger than the laser relaxation frequency and the transmission bit error ratio is below a critical value.Chaos synchronization over 8191-km fiber transmission was experimentally achieved.Compared to traditional common-signal-induced synchronization using analog drive signal such as chaos,the distance is increased by 8 times,and complicated hardware devices for channel impairment compensation are no longer required.In addition,the proposed method does not sacrifice communication capacity like traditional methods which need a channel to transmit analog drive signal.It is therefore believed that this common-digital-signal induced laser synchronization paves a way for secure backbone and submarine transmission.

关 键 词：digital optical communication signal chaos synchronization long haul synchronization fiber communication secure transmission semiconductor lasers digital drive digital optical communication 

分 类 号：TN929.1[电子电信—通信与信息系统]