论文标题
紧凑的米歇尔森干涉仪具有子敏计灵敏度
Compact Michelson interferometers with subpicometer sensitivity
论文作者
论文摘要
自2015年以来，干涉重力波观测站的网络已成功检测到数十个天体物理信号。在本文中，我们经过实验研究的紧凑型传感器有可能提高重力波检测器对中间质量黑色孔的敏感性。我们仅使用商业组件（例如传感头和激光器）来组装设置并演示其子调计精度。该设置由一对迈克尔逊干涉仪组成，该计算计使用深度频率调制技术在多个干扰条纹上获得线性的相对位移读数。我们实施了激光频率稳定方案，以达到0.3 \，$ \ text {pm} / \ sqrt {\ text {hz}} $上方0.1 \，hz，hz。该设备还具有改善其他实验的潜力，例如扭转平衡和商业地震仪。
The network of interferometric gravitational-wave observatories has successfully detected tens of astrophysical signals since 2015. In this paper, we experimentally investigate compact sensors that have the potential to improve the sensitivity of gravitational-wave detectors to intermediate-mass black holes. We use only commercial components, such as sensing heads and lasers, to assemble the setup and demonstrate its subpicometer precision. The setup consists of a pair of Michelson interferferometers that use deep frequency modulation techniques to obtain a linear, relative displacement readout over multiple interference fringes. We implement a laser-frequency stabilisation scheme to achieve a sensitivity of 0.3\,$\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.
