输出功率变化 meaning in English

power output variation

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
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