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根据电光耦合速率方程提出了注入式激光二极管的小信号——电光等效电路模型，并据此推导出激光二极管小信号传输函数，所得结果物理意义清楚，对以注入式半导体激光器为基础的光电系统和光纤系统的工程设计、分析很有意义。
According to the electro-optical coupling rate equation, a small-signal-electro-optical equivalent circuit model of an injection laser diode is proposed, and the small-signal transfer function of the laser diode is deduced therefrom. The obtained results have a clear physical meaning. Based on the injection-type semiconductor laser- System and fiber optic system engineering design, analysis of great significance.