Zeng Yao, Zhou Pei, Huang Yu, Li Nianqiang
Opt Lett. 2022 Jan 1;47(1):142-145. doi: 10.1364/OL.445691.
Extreme events (EEs) are predicted for the first time, to the best of our knowledge, in the chaotic dynamics of a free-running spin-polarized vertical-cavity surface-emitting laser (spin-VCSEL). Here, we not only show two types of EEs, i.e., vectorial and scalar EEs separately corresponding to the emission of a high-power pulse in both linear polarizations (LPs) simultaneously and in single LP, but we also observe a new EE type that only occurs in total intensity. We also confirm that the observed EEs follow similar statistical distributions to conventional rogue waves. Moreover, the effects of pump power and pump ellipticity on the generation of EEs are analyzed. Finally, we compare free-running and optical feedback spin-VCSELs, which provides more insights into the study of EEs. More importantly, this work offers a novel platform for the study of EEs with a simple structure and opens up new research fields into spin-VCSELs.
据我们所知，首次在自由运行的自旋极化垂直腔面发射激光器（自旋垂直腔面发射激光器）的混沌动力学中预测到极端事件（EEs）。在此，我们不仅分别展示了两种类型的极端事件，即矢量极端事件和标量极端事件，它们分别对应于同时在两个线性偏振（LPs）中以及在单个线性偏振中发射高功率脉冲，而且我们还观察到一种仅在总强度中出现的新型极端事件。我们还证实，所观察到的极端事件遵循与传统 rogue 波相似的统计分布。此外，分析了泵浦功率和泵浦椭圆率对极端事件产生的影响。最后，我们比较了自由运行和光反馈自旋垂直腔面发射激光器，这为极端事件的研究提供了更多见解。更重要的是，这项工作为研究极端事件提供了一个结构简单的新型平台，并开辟了自旋垂直腔面发射激光器的新研究领域。
