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Tao W, Deng X, Diao Y, Gao R, Qi K, Wang S, Luo Z, Sha W, Liu H. Design and Construction of the Optical Bench Interferometer for the Taiji Program. Sensors (Basel) 2023; 23:9141. [PMID: 38005529 PMCID: PMC10675380 DOI: 10.3390/s23229141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023]
Abstract
A kind of full-function two-sided optical bench interferometer (OBI) is designed to meet the practical requirements of the Taiji Program for space gravitational wave detection. The main optical paths are arranged on the A-side for transmission and interference, and other optical paths and electronic devices are placed on the B-side. According to the design scheme, we successfully constructed two OBIs by using hydrogen-oxygen catalytic stress-free bonding technology. When the OBI is installed and adjusted, the position and Angle error of the interference beam are controlled within 30 μm and 50 μrad through the self-designed precision mechanical clamping mechanism and beam position measuring device. The built OBI was placed on the vibration isolation platform in the vacuum tank for the stability test. The test results show that the noise of the OBI is less than 10 pm/√Hz in the frequency band of 0.1 Hz to 1 Hz, which meets the noise budget requirements of the Taiji Pathfinder in the middle- and high-frequency band.
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Affiliation(s)
- Wei Tao
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; (W.T.); (X.D.); (Y.D.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China
| | - Xiaoqin Deng
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; (W.T.); (X.D.); (Y.D.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China
| | - Yuqing Diao
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; (W.T.); (X.D.); (Y.D.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China
| | - Ruihong Gao
- National Microgravity Laboratory (NML), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; (R.G.); (K.Q.); (S.W.); (Z.L.)
| | - Keqi Qi
- National Microgravity Laboratory (NML), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; (R.G.); (K.Q.); (S.W.); (Z.L.)
| | - Shaoxin Wang
- National Microgravity Laboratory (NML), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; (R.G.); (K.Q.); (S.W.); (Z.L.)
| | - Ziren Luo
- National Microgravity Laboratory (NML), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; (R.G.); (K.Q.); (S.W.); (Z.L.)
| | - Wei Sha
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China; (W.T.); (X.D.); (Y.D.)
- Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Sciences, Changchun 130033, China
| | - Heshan Liu
- National Microgravity Laboratory (NML), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; (R.G.); (K.Q.); (S.W.); (Z.L.)
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