双光反馈短腔半导体激光器动力学特性分析  

Characteristics of Dual-Optical-Feedback semiconductor laser with short cavity

作　　者：龚全 郭园园 赵彤 孙粤辉[3] 王云才 GONG Quan;GUO Yuanyuan;ZHAO Tong;SUN Yuehui;WANG Yuncai(Key Laboratory of Advanced Transducers and Intelligent Control System,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China;Institute of Optoelectronic Engineering,College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,China;School of Information Engineering,Guangdong University of Technology,Key Laboratory of Guangdong Province on Photonics Information Technology,Guangzhou 510006,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,太原030024 [2]太原理工大学物理与光电工程学院光电工程研究所,太原030024 [3]广东工业大学信息工程学院,广东省信息光子技术重点实验室,广州510006

出　　处：《激光杂志》2024年第1期49-53,共5页Laser Journal

基　　金：国家自然科学基金(No.61805171);中央引导地方项目(No.YDZJSX2022A010)。

摘　　要：提出并数值验证了双光反馈短腔半导体激光器可以稳定产生宽带混沌信号。通过理论分析对比了单光反馈和双光反馈两种结构下,反馈系数对激光器动力学特性的影响,发现双光反馈结构的短腔半导体激光器在很大的参数范围内可以产生混沌信号。对激光器不同输出状态的信号特性进行分析,结果表明双光反馈结构的激光器经由倍周期路径演化为混沌状态。另外,研究了双腔的反馈系数对激光器输出信号带宽的影响,发现双光反馈结构的激光器产生混沌信号的带宽可达10 GHz以上,并且随着反馈系数增大而逐渐增加。We propose and numerically demonstrate that short cavity semiconductor laser with dual-optical-feedback can stably generate broadband chaotic signal.Through theoretical analysis and comparison of the effects of the feedback factors on the dynamic characteristics of the laser with single-optical-feedback and dual-optical-feedback structure,it was found that the short cavity semiconductor laser with dual-optical-feedback can generate chaotic signals within a large parameters range.The analysis of the signal characteristics of different output states of the laser shows that the laser with dual-optical-feedback structure evolves through a period-doubling bifurcation leading to chaos.In addition,the influence of the feedback factors of the dual cavity on the bandwidth of the output signal was studied,and it was identified that the bandwidth of the chaotic signal generated by the laser with dual-optical-feedback structure can reach over 10 GHz,and gradually increases with the increase of the feedback factors.

关 键 词：半导体激光器 双光反馈 混沌 混合集成 

分 类 号：TN24[电子电信—物理电子学]