Acta Photonica Sinica, Volume. 54, Issue 2, 0254101(2025)
Essential Performance Evaluation of the Laser Precision Pointing Mechanism for Space Gravitational Wave Detection （Invited）
Figures & Tables(11)
Fig. 2. Schematic diagram of heterodyne interferometry optical system
Fig. 3. The Point Ahead Angle Mechanism and performance testing environment
Fig. 5. Logarithmic Amplitude Spectral Density （LASD） of pointing jitter noise
Fig. 7. The influence of electromagnetic shielding on the angle measurement results of capacitive sensors
Fig. 9. Optical measurement of the coupling effect of displacement and temperature
Table 1. Noise coefficient of Tilt-to-Length effect
View tableView in ArticleTable 1. Noise coefficient of Tilt-to-Length effect
Piezo-driven angle/ Meas. angle with DWS/nrad Meas. displacement with DWS/pm Angle variation with
DWS
/nrad Displacement
variation
/pm TTL/
（pm·nrad-1）
20 2.45×105 1.72×105 0 0 0 120 1.41×105 1.07×105 -1.04×105 -6.55×105 0.63 220 4.13×104 3.70×105 -2.04×105 -1.35×105 0.67 320 -5.62×104 -3.66×105 -3.01×105 -2.09×105 0.69 420 -1.54×105 -1.13×105 -3.99×105 -2.85×105 0.71 520 -2.51×105 -1.89×105 -4.96×105 -3.62×105 0.73
Tools
Get Citation
Copy Citation Text
Yang LI, Caiyun LIU, Changkang FU, Hongming ZHANG, Hongyang GUO, Mengyang ZHAO, Ruihong GAO, Qiang WANG, Dong HE, Yongmei HUANG. Essential Performance Evaluation of the Laser Precision Pointing Mechanism for Space Gravitational Wave Detection （Invited）[J]. Acta Photonica Sinica, 2025, 54(2): 0254101
Paper Information
Category: Special Issue for Precise Beam Pointing for Space Gravitational Wave Detection
Received: Dec. 13, 2024
Accepted: Jan. 17, 2025
Published Online: Mar. 25, 2025
The Author Email: HE Dong (hedong@ioe.ac.cn), HUANG Yongmei (huangym@ioe.ac.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20