A Novel Method to Calculate the Initial Phase Difference between the Two Fibre Arms of Laser Homodyne Interferometer
LUO Hong-E, TIAN Xiao-Jian, GAO Bo, LI Liang, WU Ge, CAO Liang
College of Electronic Science and Engineering, State KeyLaboratory of Integrated Optoelectronics, Jilin University, Changchun 130012
A Novel Method to Calculate the Initial Phase Difference between the Two Fibre Arms of Laser Homodyne Interferometer
LUO Hong-E;TIAN Xiao-Jian;GAO Bo;LI Liang;WU Ge;CAO Liang
College of Electronic Science and Engineering, State KeyLaboratory of Integrated Optoelectronics, Jilin University, Changchun 130012
关键词 ：
42.25.Hz ,
42.15.Eq ,
42.30.Rx
Abstract ： We suggest a novel method to calculate the initial phase difference between two fibre arms of a laser homodyne interferometer. Put the two fibre arms in a temperature controller, whose short term stability is 0.02°C (measured in an hour), then measure the interference photocurrent and the photocurrents from the two fibre arms at a fixed temperature. With these three photocurrents we can calculate the value of the initial phase difference. We set up a simple laser homodyne interferometer to test the theory. The experimental results are repeatable and the measurement precision is about 0.04°. It is theoretically and experimentally proven that this method is potentially easy and practical.
Key words ：
42.25.Hz
42.15.Eq
42.30.Rx
出版日期: 2007-01-01
引用本文:
LUO Hong-E;TIAN Xiao-Jian;GAO Bo;LI Liang;WU Ge;CAO Liang. A Novel Method to Calculate the Initial Phase Difference between the Two Fibre Arms of Laser Homodyne Interferometer[J]. 中国物理快报, 2007, 24(1): 101-103.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2007/V24/I1/101
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