Methodological demonstration of laser beam pointing control for space gravitational wave detection missions

	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)
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2014-07
通讯作者邮箱	gajin@imech.ac.cn
卷号	85 期号:7 页码:74501
关键词	OPTICAL INTERFEROMETERS AUTOMATIC ALIGNMENT FOLLOW-ON LISA SYSTEM GRACE
ISSN号	0034-6748
通讯作者	Jin, G (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab NML, Beijing 100190, Peoples R China.
产权排序	[Dong, Yu-Hui; Liu, He-Shan; Luo, Zi-Ren; Li, Yu-Qiong; Jin, Gang] Chinese Acad Sci, Inst Mech, Natl Micrograv Lab NML, Beijing 100190, Peoples R China; [Dong, Yu-Hui; Liu, He-Shan] Univ Chinese Acad Sci, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	In 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.
分类号	二类/Q2
收录类别	SCI ; EI
资助信息	This 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).
原文出处	http://dx.doi.org/10.1063/1.4891037
语种	英语
WOS记录号	WOS:000341176600036
公开日期	2014-11-03
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49145]
专题	力学研究所_国家微重力实验室
推荐引用方式 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.(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.