Lanqiang Zhang, Yi Zeng, Xiaohu Wu, Jinsheng Yang, Xiaoli Ruan, Qiang Xin, Naiting Gu, Changhui Rao. Progress in the research of testing and evaluation techniques for spaceborne gravitational wave telescopes[J]. Opto-Electronic Engineering, 2024, 51(2): 240027
- Opto-Electronic Engineering
- Vol. 51, Issue 2, 240027 (2024)
Fig. 1. Gravitational wave spectrum
Fig. 2. Developing space gravitational wave detectors
![Schematic diagram of space gravitational wave detectors. (a) Triangular constellation and six links of detectors; (b) Laser links between two spacecrafts[9]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Schematic diagram of space gravitational wave detectors. (a) Triangular constellation and six links of detectors; (b) Laser links between two spacecrafts[9]
Fig. 4. Main research progress of spaceborne telescopes for gravitational wave detection[15-18,21-36]
Fig. 5. Space gravitational wave detection spaceborne telescope ground integrated test platform
Fig. 6. LISA telescope assembly dimensional stability test by Verlaan et al. (a) Schematic of TA’s length metrology platform; (b) Thermal vacuum test scheme[28,47]
Fig. 7. Optical path length stability test of LISA telescope based on heterodyne interferometry at the University of Florida. (a) Schematic of optical path length stability test platform; (b) ULE proto-TTS[32]
Fig. 8. TTS and dimension test result of ULE pTTS. (a) OptoCAD model of TTS; (b) Length noise test results of reference cavity and ULE pTTS and LISA requirement[32]
Fig. 9. Stability test of SiC frame of Taiji telescope based on fiber interferometer by Sang et al. (a) Principle of stability testing with fiber optic interferometer; (b) Schematic of the frame stability test platform; (c)Test platform pictures[33]
Fig. 10. SiC frame dimensional stability test and numerical simulation results. (a) Power spectrum of room temperature environment test; (b) Power spectrum of in-orbit numerical simulation[33]
Fig. 11. Dimensional stability test of Taiji telescope’s C/SiC support frame by Shen et al. (a) The thermal design of the test structure; (b) The multi-channel heterodyne interferometer test platform[34]
Fig. 12. Schematic of the optical path length stability measurement scheme for the space gravitational wave detection spaceborne telescope[50]
Fig. 13. Schematic of the coherent stray light detection based on the heterodyne interferometry[35]
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Table 2. CFRP telescope assembly structure thermo-mechanical requirements and tested performances[47]
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