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Methodological demonstration of laser beam pointing control for space gravitational wave detection missions
Dong YH(董玉辉); Liu HS(刘河山); Luo ZR(罗子人); Li YQ(李玉琼); Jin G(靳刚); Jin, G (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab NML, Beijing 100190, Peoples R China.
Source PublicationREVIEW OF SCIENTIFIC INSTRUMENTS
2014-07
Volume85Issue:7Pages:74501
ISSN0034-6748
AbstractIn space laser interferometer gravitational wave (G. W.) detection missions, the stability of the laser beam pointing direction has to be kept at 10 nrad/root Hz. Otherwise, the beam pointing jitter noise will dominate the noise budget and make the detection of G. W. impossible. Disturbed by the residue non-conservative forces, the fluctuation of the laser beam pointing direction could be a few mu rad/root Hz at frequencies from 0.1 mHz to 10 Hz. Therefore, the laser beam pointing control system is an essential requirement for those space G. W. detection missions. An on-ground test of such beam pointing control system is performed, where the Differential Wave-front Sensing technique is used to sense the beams pointing jitter. An active controlled steering mirror is employed to adjust the beam pointing direction to compensate the jitter. The experimental result shows that the pointing control system can be used for very large dynamic range up to 5 mu rad. At the interested frequencies of space G. W. detection missions, between 1 mHz and 1 Hz, beam pointing stability of 6 nrad/root Hz is achieved. (C) 2014 AIP Publishing LLC.
KeywordOptical Interferometers Automatic Alignment Follow-on Lisa System Grace
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000341176600036
Funding OrganizationThis work was supported by the Space Science Research Projects in Advance (SSRPA: O930143XM1) and the Scientific Equipment Development and Research Project (SEDRP: Y231411YB1) of Chinese Academy of Sciences (CAS).
DepartmentNML纳米生物光学
Classification二类/Q2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49145
Collection国家微重力实验室
Corresponding AuthorJin, G (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab NML, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Dong YH,Liu HS,Luo ZR,et al. Methodological demonstration of laser beam pointing control for space gravitational wave detection missions[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2014,85(7):74501.
APA 董玉辉,刘河山,罗子人,李玉琼,靳刚,&Jin, G .(2014).Methodological demonstration of laser beam pointing control for space gravitational wave detection missions.REVIEW OF SCIENTIFIC INSTRUMENTS,85(7),74501.
MLA 董玉辉,et al."Methodological demonstration of laser beam pointing control for space gravitational wave detection missions".REVIEW OF SCIENTIFIC INSTRUMENTS 85.7(2014):74501.
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