考虑在实际实验中的情况，分析了多外腔条件下的自混合干涉效应。
Considering the experiment in practice, we analyze the laser feedback interference at the condition of multiple external cavities.
基于半导体激光器的自混合干涉效应，通过实验研究了扬声器的振动特性。
The vibration characteristic of loudspeakers is investigated experimentally, based on the self-mixing interference effect of semiconductor laser diode.
首次将量子力学的微扰论引入自混合干涉效应，首次提出用LED作为自混合干涉测量光源的设想。
Introduced small disturbance theory in quantum mechanism into SMI effects, and put forward the idea of replacing the light source of LED for the first time.
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