Multi-channel phasemeter and its application in the heterodyne laser interferometry

被引：0
作者：
HeShan Liu
YuHui Dong
ZiRen Luo
YuQiong Li
Gang Jin
机构：
[1] Chinese Academy of Sciences,National Microgravity Laboratory (NML), Institute of Mechanics
[2] Chinese Academy of Sciences,School of Physics
来源：
Science China Technological Sciences | 2015年 / 58卷
关键词：
phasemeter; laser interferometer; gravitational waves detection;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The mission to detect gravitational wave in space requires a not only sophisticated but also ultra-precise laser interferometric measurement system. Within a single spacecraft, tens of interferometric beat signals are generated at the same time and they also need to be processed simultaneously. In this paper, a multi-channel phasemeter which can parallelly process the signals is constructed. The test shows that a sensitivity of 2π μrad/√Hz could be achieved in the frequency range of 0.1 to 10 Hz. We also utilize the phasemeter to evaluate the performance of a heterodyne laser interferometer.
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收藏
页码：746 / 749
页数：3
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