Time delay evaluation for laser interferometer using electro-optical modulator
Time delay evaluation for laser interferometer using electro-optical modulator
复制标题
使用电光调制器的激光干涉仪时延评估
DOI：
10.1088/1742-6596/1065/22/222008
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Ota
中科院分区：
文献类型：
--
作者：
H. Nozato;W. Kokuyama;K. Hattori;A. Ota
对激光干涉仪的响应时间进行评估是对加速度计相移进行初步校准的必要前提。因此，作者提出了一种方法来评估的响应时间的激光干涉仪与一个简单的和廉价的实验装置，使用电光调制器。本研究利用电光调制器调制光路长度，并对正交信号进行相位变换，从而确定了NMIJ中激光干涉仪中光电探测器的本征时延。
Evaluating the response time of the laser interferometer for primary calibration of the phase shift of accelerometers is an essential prerequisite. Therefore, the authors propose a method to evaluate the response time of the laser interferometer with an easy and inexpensive experimental set-up using an electro-optical modulator. This research uses the EOM to modulate the optical length and gives the phase change to the quadrature signal, thereby this method determines the intrinsic time delay of the photo-detector with a preamplifier in the laser interferometer used in NMIJ.