Jiang Ning, Zhao Anke, Liu Shiqin, Zhang Yiqun, Peng Jiafa, Qiu Kun
Opt Express. 2020 Mar 30;28(7):9477-9486. doi: 10.1364/OE.389028.
The properties of injection-locking chaos synchronization and communication in closed-loop external-cavity semiconductor lasers (ECSL) subject to phase-conjugate feedback (PCF) are investigated systematically. We theoretically analyze the general conditions for the injection-locking, and numerically investigate the properties of injection-locking chaos synchronization in the phase and intensity domains, the influences of frequency detuning and intrinsic parameter mismatch on the injection-locking chaos synchronization, as well as the performance of injection-locking chaos synchronization-based communication in closed-loop PCF-ECSL systems. The numerical results demonstrate that with respect to the conventional optical feedback (COF) scenario, the injection-locking chaos synchronization in a PCF-ECSLs configuration shows a significantly wider high-quality synchronization region and excellent feasibility, and the performance of chaos communication can also be enhanced.
系统地研究了受相位共轭反馈（PCF）的闭环外腔半导体激光器（ECSL）中的注入锁定混沌同步和通信特性。我们从理论上分析了注入锁定的一般条件，并在数值上研究了相位和强度域中的注入锁定混沌同步特性、频率失谐和固有参数失配对注入锁定混沌同步的影响，以及基于注入锁定混沌同步的通信在闭环PCF-ECSL系统中的性能。数值结果表明，相对于传统光反馈（COF）情况，PCF-ECSL配置中的注入锁定混沌同步显示出显著更宽的高质量同步区域和出色的可行性，并且混沌通信的性能也可以得到增强。
