Influence of Installation and Adjustment Error of Gravitational Wave Telescope on TTL Noise

Xinxu Cui; Chao Fang; Zhi Wang

doi:10.3788/AOS230675

Acta Optica Sinica, Volume. 43, Issue 19, 1912001(2023)

Influence of Installation and Adjustment Error of Gravitational Wave Telescope on TTL Noise

Xinxu Cui¹, Chao Fang^1、*, and Zhi Wang^1,2、**

Author Affiliations

¹Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,Jilin , China

²School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences , Hangzhou 310024, Zhejiang , China

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Figures & Tables(10)

Fig. 1. Optical path diagram of space gravitational wave telescope

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Fig. 2. Wavefront difference of space gravitational wave telescope

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Fig. 3. Optical path diagram of interstellar laser interferometer

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Fig. 4. There is an installation error between aperture and primary mirror. (a) $Δ S_{L P F}$ change curve; (b) Line graph of $Δ S_{L P F}$ rate of change

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Fig. 5. There is an installation error between primary mirror and secondary mirror. (a) $Δ S_{L P F}$ change curve; (b) Line graph of $Δ S_{L P F}$ rate of change

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Fig. 6. There is an installation error between secondary mirror and third mirror. (a) $Δ S_{L P F}$ change curve;(b) Line graph of $Δ S_{L P F}$ rate of change

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Fig. 7. There is an installation error between third mirror and fourth mirror. (a) $Δ S_{L P F}$ change curve; (b) Line graph of $Δ S_{L P F}$ rate of change

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Fig. 8. Equivalent optical path diagram of gravitational wave telescope

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Table 1. Structural parameters of off-axis quadruple mirror telescope
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Table 1. Structural parameters of off-axis quadruple mirror telescope
No. Name Radius of curvature /mm Thickness /mm
1 Primary mirror $-$ 12xx.xxx $-$ 600
2 Secondary mirror $-$ 8x.xxx 660
3 Third mirror $-$ 6xx.xxx $-$ 58.141
4 Forth mirror 3xx.xxx 118.013

Table 2. Distance tolerance values of installation and adjustment

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Table 2. Distance tolerance values of installation and adjustment

No.	Component distance	Design distance /mm	Tolerance value /mm	Actual distance /mm
1	Aperture and primary mirror	600.000	0.200	600.200
2	Primary and secondary mirror	$-$ 600.000	$-$ 0.200	$-$ 600.200
3	Secondary and third mirror	660.000	0.200	660.200
4	Third and fourth mirror	$-$ 58.141	$-$ 0.200	$-$ 58.341

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Xinxu Cui, Chao Fang, Zhi Wang. Influence of Installation and Adjustment Error of Gravitational Wave Telescope on TTL Noise[J]. Acta Optica Sinica, 2023, 43(19): 1912001

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