Numerical Simulations of Arm-locking for Taiji Space Gravitational Waves Detection

doi:10.1007/s12217-021-09875-7

	Numerical Simulations of Arm-locking for Taiji Space Gravitational Waves Detection
	Liu H(刘航)1,2; Li YQ(李玉琼)2; Jin G(靳刚)2
刊名	MICROGRAVITY SCIENCE AND TECHNOLOGY
	2021-06-01
卷号	33 期号:3 页码:8
关键词	Arm-locking . laser frequency stabilization . taiji mission . gravitational waves detection
ISSN号	0938-0108
DOI	10.1007/s12217-021-09875-7
通讯作者	Li, Yuqiong(liyuqiong@imech.ac.cn)
英文摘要	The laser frequency stabilization is one of the most important key technologies for the interferometer measurement system of space gravitational waves detection. As a proposed frequency stabilization technique, the scheme of arm-locking is to convert the stability of interferometer arm-length into the stability of laser frequency. Some numerical simulations of arm-locking for Taiji mission were investigated in the paper. Meanwhile, an innovative controller consisted of a compensation filter and two-stage integrators in parallel was presented to suppress the laser frequency noise without increasing gain and prevent the high gain from suppressing the gravitational waves signal. The single arm-locking simulation results showed that the laser noise of closed loop was lower than 3.19 mu m/root Hz@10 mHz only in the frequency range of 0.1 mHz - 0.03 Hz. But the dual arm-locking simulation results showed that the laser noise of closed loop was lower than 3.19 mu m/root Hz@10 mHz in the full frequency range of 0.1 mHz - 1 Hz, meeting the requirement of Taiji mission. Preliminary results represented the feasibility and effectiveness of arm-locking on laser frequency stabilization for the Taiji mission.
分类号	二类
资助项目	Youth Innovation Promotion Association, Chinese Academy of Sciences[2018024] ; National Science Foundation of China[61575209] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB23030200]
WOS关键词	FREQUENCY ; INTERFEROMETRY ; LISA ; DELAY ; LIGO
WOS研究方向	Engineering ; Thermodynamics ; Mechanics
语种	英语
WOS记录号	WOS:000657840400002
资助机构	Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者	Li, Yuqiong
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86931]
专题	力学研究所_国家微重力实验室
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Liu H,Li YQ,Jin G. Numerical Simulations of Arm-locking for Taiji Space Gravitational Waves Detection[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2021,33(3):8.
APA	刘航,李玉琼,&靳刚.(2021).Numerical Simulations of Arm-locking for Taiji Space Gravitational Waves Detection.MICROGRAVITY SCIENCE AND TECHNOLOGY,33(3),8.
MLA	刘航,et al."Numerical Simulations of Arm-locking for Taiji Space Gravitational Waves Detection".MICROGRAVITY SCIENCE AND TECHNOLOGY 33.3(2021):8.