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中文摘要：
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.
英文摘要：
Based on the Spin-flip Model, the nonlinear dynamical characteristics of a 1 550 nm vertical- cavity surface-emitting laser subject to orthogonally polarized beams injection and negative optoelectronic feedback was investigated. The results show that, for a free-running 1 550 nm vertical-cavity surface- emitting laser lasing at the Y linear polarization mode, under suitable injection strength and frequency detuning, 1 550 nm orthogonally polarized optical injected vertical-cavity surface-emitting laser can exhibit many nonlinear dynamic behaviors such as Stable State, Period-one, Period-two, Multi-period, Chaos, Stable Injection Locking and Polarization Switching phenomena. Then, after introducing the negative optoelectronic feedback, some new nonlinear dynamic behaviors, such as Double Frequency Quasi-periodic Oscillation, Triple Frequency Quasi-periodic Oscillation, can he observed. For a certain feedback delay, the dynamic distribution regions of the orthogonally polarized optical injected vertical- cavity surface-emitting laser outputs in the parameter space of injection strength and frequency detuning will be influenced by the optoelectronic feedback strength. Under certain optoelectronic feedback strength, for relatively small injection strength, the feedback delay has an obvious effect on the dynamic distribution regions in the parameter space of injection strength and frequency detuning. For relatively larger injection strength, the delay time has little effect on the dynamic distribution regions and the laser almost operates at Period-one or Stable Injection Locking state.
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