半导体激光自混合干涉的弱光反馈模型

Study on theoretical models of semiconductor laser self-mixing interference in weak optical feedback condition

文章针对弱光反馈情形，对基于光反馈效应的激光自混合干涉模型进行了探讨。采用等效双镜腔模型，从增益阈值和振荡频率方面给出了理论模型。该模型很好地解释了激光自混合干涉现象。

Study on theoretical models of laser self-mixing interference based on optical feedback effect is made in terms of weak optical feedback condition.The theoretical models are given on the basis of gain threshold and lasing frequency by virture of double mirror-cavity model.The phenomenon of laser self-mixing interference is successfully explained by means of these models.Finally the mathematical models of a practical fiber-optic self-mixing interference system are analyzed.