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Differential wavefront sensing-based high-precision dual closed-loop control of point-ahead angle mechanism in space gravitational wave detection

文献类型：期刊论文

作者Fu, Changkang5,6,7,8; Li, Yang5,6,7,8; Zhang, Hongming5,6,7,8; Tang, Wei5,6,7,8; Guo, Hongyang5,6,7,8; Zhao, Mengyang3,4,5; Gao, Ruihong3; Wang, Chen1,2; Han, Junfeng1,2; Ma, Caiwen1,2
刊名OPTICS EXPRESS
出版日期2025-09-22
卷号33期号:19页码:18
ISSN号1094-4087
DOI10.1364/OE.573081
通讯作者He, Dong(hedong@ioe.ac.cn) ; Wang, Qiang(qiangwang@ioe.ac.cn) ; Huang, Yongmei(huangym@ioe.ac.cn)
英文摘要Laser pointing jitter noise can significantly impact heterodyne interferometric ranging in space gravitational wave detection. Existing differential wavefront sensing (DWS)-based laser pointing control systems fail to achieve the required accuracy due to inadequate disturbance suppression resulting from sensor performance degradation and actuator nonlinearity. In this study, a DWS-based high-precision dual closed-loop control for the point-ahead angle mechanism (PAAM) is proposed. A laser heterodyne interferometry experimental platform is constructed, and a high-precision DWS phase-to-angle conversion coefficient calibration method is presented. Experimental verification of both single closed-loop and dual closed-loop architectures is conducted. Experimental measurements demonstrate that the dual closed-loop control system achieves a pointing jitter noise of less than 5nrad/Hz(1/2) within the 1 mHz to 1 Hz frequency band, an 87.18% reduction compared to the single closed-loop system, representing a breakthrough at low frequencies. This system verifies the necessity of the PAAM dual closed-loop pointing control strategy based on differential wavefront sensing in a heterodyne interferometer optical system. It overcomes the ultra-low-frequency pointing control bottleneck and provides a feasible technical path that meets the noise budget for space gravitational wave detection missions. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
资助项目National Key Research and Development Program of China[2022YFC2203800]
WOS研究方向Optics
语种英语
WOS记录号WOS:001580400600001
资助机构National Key Research and Development Program of China
源URL[http://dspace.imech.ac.cn/handle/311007/104089]  
专题力学研究所_国家微重力实验室
通讯作者He, Dong; Wang, Qiang; Huang, Yongmei
作者单位1.Chinese Acad Sci, Key Lab Space Precis Measurement Technol, Xian 710119, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
3.Chinese Acad Sci, Natl Micrograv Lab, Inst Mech, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
7.Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Peoples R China
8.Chinese Acad Sci, State Key Lab Opt Field Manipulat Sci & Technol, Chengdu 610209, Peoples R China
推荐引用方式
GB/T 7714		 Fu, Changkang,Li, Yang,Zhang, Hongming,et al. Differential wavefront sensing-based high-precision dual closed-loop control of point-ahead angle mechanism in space gravitational wave detection[J]. OPTICS EXPRESS,2025,33(19):18.
APA Fu, Changkang.,Li, Yang.,Zhang, Hongming.,Tang, Wei.,Guo, Hongyang.,...&Huang, Yongmei.(2025).Differential wavefront sensing-based high-precision dual closed-loop control of point-ahead angle mechanism in space gravitational wave detection.OPTICS EXPRESS,33(19),18.
MLA Fu, Changkang,et al."Differential wavefront sensing-based high-precision dual closed-loop control of point-ahead angle mechanism in space gravitational wave detection".OPTICS EXPRESS 33.19(2025):18.

入库方式： OAI收割

来源：力学研究所

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