Nov. 2021

Article Contents

Chinese Optics> 2021> 14(6): 1426-1434.

WANG Lu-yu, LI Yu-qiong, CAI Rong. Noise suppression of laser jitter in space laser interferometer[J]. Chinese Optics, 2021, 14(6): 1426-1434. doi: 10.37188/CO.2021-0045

Citation:

WANG Lu-yu, LI Yu-qiong, CAI Rong. Noise suppression of laser jitter in space laser interferometer[J].Chinese Optics, 2021, 14(6): 1426-1434.doi:10.37188/CO.2021-0045

WANG Lu-yu, LI Yu-qiong, CAI Rong. Noise suppression of laser jitter in space laser interferometer[J]. Chinese Optics, 2021, 14(6): 1426-1434. doi: 10.37188/CO.2021-0045

Citation:

WANG Lu-yu, LI Yu-qiong, CAI Rong. Noise suppression of laser jitter in space laser interferometer[J].Chinese Optics, 2021, 14(6): 1426-1434.doi:10.37188/CO.2021-0045

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Noise suppression of laser jitter in space laser interferometer

doi:10.37188/CO.2021-0045

WANG Lu-yu^{1, 2,},
LI Yu-qiong^3,,,
CAI Rong^{1, 2,,}

1.
Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, Beijing 101408, China
3.
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China

Funds:Supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences (No. 2018024); the National Natural Science Foundation of China (No. 61575209); the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDA17020103)

More Information

Corresponding author:liyuqiong@imech.ac.cn;cairong@aircas.ac.cn
Received Date:01 Mar 2021
Rev Recd Date:15 Mar 2021

Available Online:02 Jun 2021

Publish Date:19 Nov 2021

Abstract

Abstract

In the “Taiji mission”, the laser jitter noise caused by satellite jitter is one of the main noise sources that affect the accuracy of laser interferometer. In order to ensure the measurement accuracy, the noise must be suppressed to 10 nrad/ $\sqrt{{\rm{Hz}}} $ @10 mHz. Firstly, an angle sensor composed of a four-quadrant photodetector and a phase meter was used to measure the angle signal, and a Mach-Zehnder interferometer combined with proportional-integral-derivative control technology was used to build a ground-based laser jitter noise suppression system. Secondly, the feedback control capability of the system and the effectiveness of the system to suppress laser jitter noise were analyzed. The experimental results showed that the system could effectively suppress the laser jitter noise, and the laser jitter noise was <4 nrad/ $\sqrt{{\rm{Hz}}} $ @10 mHz. The experiment advanced the study of the “Taiji mission” on the level of laser jitter noise suppression, which laid a physical experimental foundation for laser interferometry.
- Taiji mission,
- laser interferometer in space,
- laser jitter noise

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References (24)

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