Brivio F, Reverdito C, Sacchi G, Chiaretti G, Milani M
Appl Opt. 1992 Aug 20;31(24):5044-50. doi: 10.1364/AO.31.005044.
An experimental analysis of InGaAsP injection lasers shows an unexpected decrease of the differential quantum efficiency as a function of injected current when optical power is fed back into the active cavity of a diode inserted into a long transmission line. To investigate the response of laser diodes to optical feedback, we base our analysis on a microscopic model, resulting in a set of coupled equations that include the microscopic parameters that characterize the material and the device. This description takes into account the nonlinear dependence of the interband carrier lifetime on the level of optical feedback. Good agreement between the analytical description and experimental data is obtained for threshold current and differential quantum efficiency as functions of the feedback ratio.
对InGaAsP注入激光器的实验分析表明，当光功率反馈到插入长传输线的二极管的有源腔中时，微分量子效率随注入电流的变化出现了意外下降。为了研究激光二极管对光反馈的响应，我们基于一个微观模型进行分析，得到了一组耦合方程，其中包括表征材料和器件的微观参数。该描述考虑了带间载流子寿命对光反馈水平的非线性依赖性。对于阈值电流和微分量子效率作为反馈比的函数，分析描述与实验数据之间取得了良好的一致性。
