激光自混合干涉位移测量系统的稳态解

Steady Solution to a Self-Mixing Interference System for Measuring Displacement

基于三镜腔等效自混合干涉位移测量系统 ,对自混合干涉系统的稳定性问题 ,建立系统模型 ,通过求解模型的相位方程 ,确定其单值解和多值解时边界条件 ,从理论上确定自混合干涉系统稳态运行的光反馈水平。该结论对系统设计具有指导意义。

For the steady question of a self-mixing interference system, a mathematics model of the system is deduced based on an effective three-mirror cavity model. The boundary of the single solution and multiple ones are given by solving the phase equation of the model. So, the optic feedback level in this system with a stable operating can be determined. This conclusion offers a guide to design the self-mixing interference system.