Two new dynamic-state switching phenomena are experimentally observed in a vertical-cavity surface-emitting laser with polarization-preserved external-cavity optical feedback. One is switching between a steady state and a quasi-periodic state, and the other is switching between two different steady states. Both switching phenomena occur in the same polarization and the switching period is equal to the round-trip time in the external feedback cavity. The evolution of the two switching phenomena is experimentally investigated in detail. This work not only enriches the understanding of laser nonlinear dynamics but also provides an all-optical alternative for generation of special signals for possible applications.

中文翻译：

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具有光反馈的VCSEL中动态状态切换的实验观察

在具有偏振偏振的外腔光反馈的垂直腔面发射激光器中，实验观察到了两种新的动态状态切换现象。一种是在稳态和准周期状态之间切换，另一种是在两种不同的稳态之间切换。两种切换现象都以相同的极化发生，并且切换周期等于外部反馈腔中的往返时间。两种开关现象的演变在实验上进行了详细研究。这项工作不仅丰富了对激光非线性动力学的理解，而且为可能的应用生成特殊信号提供了全光学的替代方法。