基于半导体激光器自混合效应的脉冲调制测距方法  

A Method for Measuring Distance of Pulse Modulation Base on Semiconductor Laser

作　　者：方兰兰[1] 马军山[1] 

机构地区：[1]上海理工大学光学与电子信息工程学院,上海200093

出　　处：《应用激光》2007年第4期326-329,共4页Applied Laser

基　　金：上海市重点学科建设项目资助(项目编号:T0501)

摘　　要：本文提出一种基于半导体激光器自混合效应的脉冲调制测距方法,是通过向激光器注入脉冲电流对输出功率进行调制,同时利用激光器自混合效应实现测距。此系统结构简单、紧凑。利用半导体激光器的Lang-Kobayashi方程,分析了脉冲电流和反馈系数对输出信号的影响。A method for measuring distance of pulse modulation base on semiconductor laser was presented, which modulates the output power by injecting pulse electricity, and then using laser Self-mixing effect measures distance. The structure of this system was very simple and compact. Using the Lang-Kobayashi equation of the semiconductor lasers, analyze the influence on which pulse electricity and feedback index make the putout signal.

关 键 词：半导体激光器 自混合干涉 脉冲电流 输出功率 

分 类 号：TN248.4[电子电信—物理电子学]