摘要
提出了一种利用激光自混合干涉效应的差动式位移测量系统, 建立了系统的数学模型,经仿真分析及实验验证表明: 和单激光管结构相比, 该系统位移分辨力提高了二倍, 达 1/4 光波波长, 且能大大减小光反馈强度引起的噪声及温度干扰。
A differential displacement system using the self mixing interference effect in a laser diode and its model is established. It is confirmed by computer simulating and experiment that the resolution of this system is two times of that of common single laser diode system. The intensity noise and temperature disturbance can be decreased greatly.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1999年第9期1269-1273,共5页
Acta Optica Sinica
基金
国家自然科学基金
关键词
半导体激光器
自混合干涉
差动型
位移测量器
semiconductor laser, self mixing interference, difference, displacement measurement.