物理
引力波
天文干涉仪
干涉测量
迈克尔逊干涉仪
灵敏度(控制系统)
探测器
光学
激光器
干扰(通信)
天体物理学
电信
电子工程
计算机科学
频道(广播)
工程类
作者
J. Smetana,R N Walters,Sophie Bauchinger,A. S. Ubhi,S. J. Cooper,D. Hoyland,R. Abbott,C. Baune,Peter Fritchel,Oliver Gerberding,Semjon Köhnke,H. Miao,Sebastian Rode,Д. В. Мартынов
出处
期刊:Physical review applied
[American Physical Society]
日期:2022-09-15
卷期号:18 (3)
被引量:15
标识
DOI:10.1103/physrevapplied.18.034040
摘要
The network of interferometric gravitational-wave observatories has successfully detected tens of astrophysical signals since 2015. In this paper, we experimentally investigate compact sensors that have the potential to improve the sensitivity of gravitational-wave detectors to intermediate-mass black holes. We use only commercial components, such as sensing heads and lasers, to assemble the setup and demonstrate its subpicometer precision. The setup consists of a pair of Michelson interferferometers that use deep frequency modulation techniques to obtain a linear, relative displacement readout over multiple interference fringes. We implement a laser-frequency stabilisation scheme to achieve a sensitivity of 0.3\,$\text{pm} / \sqrt{\text{Hz}}$ above 0.1\,Hz. The device has also the potential to improve other experiments, such as torsion balances and commercial seismometers.
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