光学精密工程2004，Vol.12Issue(5)：465-470,6.
具有隔离器功能的激光干涉仪的研究
Laser interferometer with isolator function
摘要
Abstract
A laser interferometer with isolator function is proposed. It can be used to carry out interference measurement, and at the same time can be prevent reflected light from returning into the laser source to stabilize the source as an isolator does, thus the measurement accuracy can be guaranteed. So, the structure of the device is formed by organic combing two structures of the conventional interferometer and two-stage isolator, in which some elements can be combined two into one with double function. And the optical paths of the interference measurement and isolating are overlapped. Theoretic analysis and experiment results show that the device is effective, the isolation is agrees with that of a two-stage isolator, about 48 dB up to now. The results also show that the accuracy of the interference measurement depends on the wavelength of the laser like that of the general interferometer. But with compact structure, it simplifies the measurement system and is convenient for practical uses.关键词
激光干涉仪/隔离功能/干涉测量Key words
laser interferometer/isolating function/interference measurement分类
信息技术与安全科学引用本文复制引用
王林斗,王加新,邢文烈,李玉峰..具有隔离器功能的激光干涉仪的研究[J].光学精密工程,2004,12(5):465-470,6.基金项目
Supported by national natural science foundation of china (No.69977014). （No.69977014）
