摘要
使用半导体激光器在弱反馈条件下的动力学理论 ,建立了线性调频半导体激光器的自混频干涉理论模型 .基于该模型 ,分析了激光器振荡频率偏移与输出功率变化特性 .通过测量激光器输出功率谱 ,可以得到激光器前端面与被测目标之间的距离 .
Theoretical model of self mixing interference in a linear frequency modulated laserdiode is presented by using the dynamic theory of semiconductor laser with weak external optical feedback.The characteristics of oscillation frequency shift and output power changes of the laser diode are analyzed by using the theoretical model.The absolute distance from front facet of laser diode to target can be found by measuring spectrum of output power of the laser diode.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2002年第5期553-556,共4页
Acta Photonica Sinica
基金
Supported by the National Nature Science Foundation of China( No.5 96 75 0 77)
