外差探测用来探测传感臂和参考臂由于温度变化引起的输出信号的频率差异。
The heterodyne detection is used to detect the output signal frequency difference between the reference arm and sensing arm, which is caused by the temperature variation.
给出了系统的最小可探测信号功率和可提供的参考光功率，指出了影响系统特性的关键参数。
We find out the minimum detectable signal power and the produced reference beam output. Several key factors which affect the system characteristics strongly. are pointed out.
给出了系统的最小可探测信号功率和可提供的参考光功率，指出了影响系统特性的关键参数。
We find out the minimum detectable signal power and the produced reference beam output. Several key factors which affect the system characteristics strongly. are pointed out.
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