【作者】 裴雅鹏； 杨军； 苑立波；

【Author】 PEI Yapeng Yang Jun YUAN Libo(Photonics Research Center, School of Science, Harbin Engineering University, Harbin 150001)

【机构】 哈尔滨工程大学理学院光子科学与技术研究中心；

【摘要】 提出一种适合于激光干涉仪的相位解调方法。干涉仪输出的四路具有任意相差的信号,通过模拟电路的运算将其转变为两路正交信号,并解调出相位的变化。为了消除功率变化等因素对解调的影响,采用了增益控制的方法对其进行了补偿。并用正弦函数发生发生器模拟出四路信号,按理论的分析,用模拟电路将相位信号解调出来,从实验上验证了这种方法。更多还原

【Abstract】 This paper introduces a technique of demodulation for laser interferometer which can output four signals with random phase. The phase is gained by operating four signals in theory. In order to eliminate the inflection of power, the AGC circuit is used. In addition, the four signals have been simulated by function generator and the phase is demodulated using analog circuit. The experiment has verified the technique is feasible.更多还原