Opt Lett. 2018 Jul 1;43(13):3013-3016. doi: 10.1364/OL.43.003013.
We report experimental and theoretical results on the pulse train dynamics in an excitable semiconductor microcavity laser with an integrated saturable absorber and delayed optical feedback. We show how short optical control pulses can trigger, erase, or retime regenerative pulse trains in the external cavity. Both repulsive and attractive interactions between pulses are observed, and are explained in terms of the internal dynamics of the carriers. A bifurcation analysis of a model consisting of a system of nonlinear delay differential equations shows that arbitrary sequences of coexisting pulse trains are very long transients towards weakly stable periodic solutions with equidistant pulses in the external cavity.
我们报告了在具有集成可饱和吸收体和延迟光反馈的可激半导体微腔激光器中脉冲串动力学的实验和理论结果。我们展示了短光控制脉冲如何在外腔中触发、擦除或重定时再生脉冲串。观察到脉冲之间存在排斥和吸引相互作用，并根据载流子的内部动力学进行了解释。由非线性时滞微分方程组组成的模型的分岔分析表明，外腔中具有等距脉冲的弱稳定周期解的共存脉冲串的任意序列是非常长的瞬变。
