光电反馈下光注入VCSELs的动力学特性

发布时间：2018-03-05 07:30

本文选题：非线性光学　切入点：非线性控制　出处：《光子学报》2016年01期 　论文类型：期刊论文

【摘要】：基于垂直腔面发射激光器的自旋反转模型,研究了光电负反馈下1 550nm正交偏振光注入垂直腔面发射激光器的非线性动力学特性.研究结果表明:在合适的注入强度和失谐频率条件下,自由运行工作在Y线偏振模式的1 550nm垂直腔面发射激光器可呈现出稳态、稳定注入锁定、单周期、二倍周期、多周期、混沌等多种非线性动力学状态以及偏振转换现象;引入光电负反馈后,1 550nm正交偏振光注入垂直腔面发射激光器将呈现出双频准周期、三频准周期等动力学状态.在注入强度和失谐频率构成的参数空间,反馈延时时间一定时,反馈强度大小对该激光器的动力学状态分布有明显影响;光电反馈强度一定时,在注入强度相对较小的区域,反馈延时时间对该激光器动力学状态分布也有明显影响,而对于注入强度相对较大的区域,该激光器始终工作在单周期或稳定注入锁定态,即反馈延时时间对激光器动态行为的影响较弱.
[Abstract]:Based on the spin inversion model of vertical cavity surface emitting laser, The nonlinear dynamic characteristics of a 1 550 nm orthogonal polarized laser injected into a vertical cavity surface emitting laser with optoelectronic negative feedback have been studied. The results show that under the appropriate injection intensity and detuning frequency, The 1 550 nm vertical cavity surface emitting laser operating in Y line polarization mode can present steady state, stable injection locking, single period, double period, multiple period, chaos and other nonlinear dynamic states, as well as polarization conversion phenomena. After the introduction of optoelectronic negative feedback, the 1,550 nm orthogonal polarized light injected into the vertical cavity surface emitting laser will present two frequency quasi period, three frequency quasi period and other dynamic states. When the parameter space is composed of injection intensity and detuning frequency, the feedback delay time is constant. The feedback intensity has a significant effect on the dynamic state distribution of the laser, and the feedback delay time has a significant effect on the dynamic state distribution of the laser in the region where the injection intensity is relatively small when the photoelectric feedback intensity is constant. For the region with relatively large injection intensity, the laser always works in a single period or stable injection locking state, that is, the feedback delay time has a weak effect on the dynamic behavior of the laser.
【作者单位】：西南大学物理科学与技术学院;
【基金】：国家自然科学基金(Nos.61178011;61275116;61475127;11204248;61575163) 中央高校基本科研业务费(No.XDJK2014C168)资助~~
【分类号】：TN248

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