共同信号驱动半导体激光器相位混沌同步  

Phase Chaos Synchronization of Semiconductor Lasers Driven by a Common Signal

作　　者：王静 毛晓鑫 王龙生 王安帮 Wang Jing;Mao Xiaoxin;Wang Longsheng;Wang Anbang(Key Laboratory of Advanced Transducers and Intelligent Control System,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;Guangdong Provincial Key Laboratory of Information Photonics Technology,College of Information Engineering,Guangdong University of Technology,Guangzhou 510006,Guangdong,China)

机构地区：[1]太原理工大学新型传感器与智能控制教育部重点实验室,山西太原030024 [2]太原理工大学物理与光电工程学院,山西太原030024 [3]广东工业大学广东省信息光子技术重点实验室,广东广州510006

出　　处：《激光与光电子学进展》2024年第15期199-207,共9页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62035009,61822509,61731014);山西省“1331工程”重点创新团队;山西省重点研发计划国际合作项目(201903D421012);中央引导地方科技发展基金(YDZJSX2021A009)。

摘　　要：提出一种基于共同信号驱动半导体激光器的相位混沌同步方法。该方法避免了传统主从同步结构中外腔模式跳变对相位差的影响,提高了相位混沌同步的稳定性。在背靠背条件下,探明了实现稳定的相位混沌同步的参数条件:当注入强度为0.15、光频失谐为-2 GHz、激光器线宽为2.5 MHz时,可获得相位差标准偏差为0.015π的相位混沌同步。进一步分析了长距离光纤传输对相位混沌同步稳定性的影响,在160 km光纤传输下获得了标准偏差为0.04π的稳定相位混沌同步。This study presents a phase chaos synchronization method based on common signal-driven semiconductor lasers.This method minimizes the impact of cavity mode hopping on phase difference in traditional master-slave synchronization structures,thereby improving the stability of phase chaos synchronization.Under back-to-back conditions,the parameter conditions for achieving a stable phase chaos synchronization are identified.With the injection intensity of 0.15,optical-frequency detuning of−2 GHz,and laser linewidth of 2.5 MHz,a phase chaos synchronization with a standard deviation of 0.015πcan be achieved.Further analysis is conducted on the impact of long-distance fiber optic transmission on the stability of phase chaos synchronization.A stable phase chaos synchronization with a standard deviation of 0.04πis obtained under 160 km fiber optic transmission.

关 键 词：半导体激光器 混沌激光 混沌同步 相位同步 保密通信 

分 类 号：TN248.4[电子电信—物理电子学]