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用于中国星载引力波探测任务的激光外差干涉测量基准的验证

Verification of Laser Heterodyne Interferometric Bench for Chinese Spaceborne Gravitational Wave Detection Missions.

作者信息

Xu Xin, Liu Heshan, Tan Yidong

机构信息

Department of Precision Instrument, Tsinghua University, Beijing 100084, China.

State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University, Beijing 100084, China.

出版信息

Research (Wash D C). 2024 Feb 14;7:0302. doi: 10.34133/research.0302. eCollection 2024.

DOI:10.34133/research.0302
PMID:38357699
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10865108/
Abstract

Construction of laser heterodyne interferometric bench to measure tiny translation and tilt with picometer- and nanoradian-level sensitivity in the millihertz band is critical for the success of spaceborne gravitational wave detection, including the LISA, Taiji, and Tianqin missions. In this paper, we report on the construction and testing of a laser heterodyne interferometric bench that contains two optical path designs, the dual-beam heterodyne interferometry and the polarization-multiplexing heterodyne interferometry. The measurement sensitivity of translation and tilt reaches below 3 pm/Hz and 12 nrad/Hz for frequencies above 10 mHz, respectively. As a technical verification platform, stabilization loops of amplitude and phase and coherence analysis are also conducted through the bench. Furthermore, we demonstrate initial implements of phase-locking technology and multiple degree of freedom measurements as the extended applications of the constructed bench. The achieved results show that the laser interferometric bench would serve as an excellent experimental platform for the technology demonstration and verification of future Chinese spaceborne gravitational wave detection.

摘要

构建激光外差干涉仪工作台，以在毫赫兹频段内实现皮米级和纳弧度级灵敏度的微小平移和倾斜测量，对于包括LISA、太极和天琴任务在内的星载引力波探测的成功至关重要。在本文中，我们报告了一种激光外差干涉仪工作台的构建和测试情况，该工作台包含双光束外差干涉测量和偏振复用外差干涉测量两种光路设计。对于频率高于10 mHz的情况，平移和倾斜的测量灵敏度分别达到3 pm/Hz以下和12 nrad/Hz以下。作为一个技术验证平台，还通过该工作台进行了幅度和相位稳定环以及相干分析。此外，我们展示了锁相技术和多自由度测量的初步实现，作为所构建工作台的扩展应用。所取得的结果表明，该激光干涉仪工作台将成为未来中国星载引力波探测技术演示和验证的优秀实验平台。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1704/10865108/a76474b4fe10/research.0302.fig.009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1704/10865108/a76474b4fe10/research.0302.fig.009.jpg

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本文引用的文献

1
Sensor Noise in LISA Pathfinder: In-Flight Performance of the Optical Test Mass Readout.丽莎探路者号中的传感器噪声：光学测试质量读出的飞行性能
Phys Rev Lett. 2021 Apr 2;126(13):131103. doi: 10.1103/PhysRevLett.126.131103.
2
Applying Differential Wave-Front Sensing and Differential Power Sensing for Simultaneous Precise and Wide-Range Test-Mass Rotation Measurements.应用差分波前传感和差分功率传感进行同时精确和大范围的测试质量旋转测量。
Sensors (Basel). 2020 Dec 29;21(1):164. doi: 10.3390/s21010164.
3
Multi-axis heterodyne interferometry at MHz frequencies: a short-arm measurement demonstration for LISA with off-the-shelf hardware.
兆赫兹频率下的多轴外差干涉测量：使用现成硬件对激光干涉空间天线（LISA）进行的短臂测量演示
Appl Opt. 2019 Aug 10;58(23):6346-6356. doi: 10.1364/AO.58.006346.
4
Picometer-Stable Hexagonal Optical Bench to Verify LISA Phase Extraction Linearity and Precision.皮米稳定六方光学基准平台，用于验证 LISA 相位提取的线性度和精度。
Phys Rev Lett. 2019 Mar 1;122(8):081104. doi: 10.1103/PhysRevLett.122.081104.
5
A dual-heterodyne laser interferometer for simultaneous measurement of linear and angular displacements.一种用于同时测量线性位移和角位移的双外差激光干涉仪。
Rev Sci Instrum. 2015 Dec;86(12):123102. doi: 10.1063/1.4936771.
6
Verification of polarising optics for the LISA optical bench.用于激光干涉空间天线（LISA）光学平台的偏振光学元件验证。
Opt Express. 2012 Dec 3;20(25):27273-87. doi: 10.1364/OE.20.027273.
7
Experimental demonstration of an automatic alignment system for optical interferometers.光学干涉仪自动对准系统的实验演示。
Appl Opt. 1994 Aug 1;33(22):5037-40. doi: 10.1364/AO.33.005037.