Opt Express. 2023 May 8;31(10):16178-16191. doi: 10.1364/OE.488263.
We report on the manipulation of extreme events (EEs) in a slave spin-polarized vertical-cavity surface-emitting laser (spin-VCSEL) subject to chaotic optical injection from a master spin-VCSEL. The master laser is free-running but yielding a chaotic regime with obvious EEs, while the slave laser originally (i.e., without external injection) operates in either continuous-wave (CW), period-one (P1), period-two (P2), or a chaotic state. We systematically investigate the influence of injection parameters, i.e., injection strength and frequency detuning, on the characteristics of EEs. We find that injection parameters can regularly trigger, enhance, or suppress the relative number of EEs in the slave spin-VCSEL, where the large ranges of enhanced vectorial EEs and average intensity of both vectorial and scalar EEs can be achieved with suitable parameter conditions. Moreover, with the help of two-dimensional correlation maps, we confirm that the probability of occurrence of EEs in the slave spin-VCSEL is associated with the injection locking regions, outside which enhanced relative number of EEs regions can be obtained and expanded with augmenting the complexity of the initial dynamic state of the slave spin-VCSEL.
我们报告了在从主垂直腔面发射半导体激光器（spin-VCSEL）进行混沌光注入的情况下，对处于自旋极化状态的从属 spin-VCSEL 中的极端事件（EEs）进行操纵。主激光器是自由运行的，但产生了具有明显 EEs 的混沌状态，而从属激光器最初（即在没有外部注入的情况下）要么以连续波（CW）、周期-1（P1）、周期-2（P2）运行，要么运行在混沌状态。我们系统地研究了注入参数（即注入强度和频率失谐）对 EEs 特性的影响。我们发现，注入参数可以有规律地触发、增强或抑制从属 spin-VCSEL 中 EEs 的相对数量，在适当的参数条件下，可以实现增强的矢量 EEs 的大范围和矢量和标量 EEs 的平均强度。此外，借助二维相关图，我们证实了从属 spin-VCSEL 中 EEs 的发生概率与注入锁定区域有关，在该区域之外，可以获得并扩展增强的 EEs 相对数量区域，同时增加从属 spin-VCSEL 的初始动态状态的复杂性。
