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基于扩展的自旋反转模型，对 1550nm 垂直腔面发射激光器全光触发运行的稳定性图谱进行了理论研究。研究结果表明：通过选取合适的参数，理论上获得的偏振开关点电流为 1.95 倍阈值，与已报道的实验结果相符，且双稳区较宽，为 1.05 到 1.95 倍阈值之间。提出一种新方法，利用注入光脉冲后两线偏振模稳定输出时的功率差作为判断触发程度的标准，得到不同注入参数下全光触发运行的稳定性图谱。基于稳定图谱触发区选取合适的参数，交替注入高斯型的设置和重置脉冲，实现了两线偏振模式间的交替转换，从而在理论上验证了全光触发运行的可行性。该研究结果对全光缓存技术实验研究具有一定的指导意义。
Based on the extended spin-inversion model, the stability of the 1550nm vertical-cavity surface-emitting laser is studied theoretically. The results show that the polarization switching point current obtained theoretically is 1.95 times the threshold value by selecting the appropriate parameters, which is consistent with the reported experimental results. The bistable area is wide, which is between 1.05 and 1.95 times the threshold value. A new method is proposed to make use of the power difference of stable output of the two polarization modes after the injection of an optical pulse as a criterion to determine the triggering degree. The stability map of all-optical triggering operation under different injection parameters is obtained. Based on the triggering region of the stable spectrum, the appropriate parameters are selected and the Gaussian-type settings and reset pulses are alternately injected to realize the alternate conversion between the two polarization modes, which proves the feasibility of the all-optical triggering operation theoretically. The result of this study is of guiding significance for the experimental study of all-optical buffer technology.