A High Q, Quasi-Monolithic Optomechanical Inertial Sensor

authored by

Jonathan Carter, Sina Kohlenbeck, Pascal Birckigt, Ramona Eberhardt, Gerhard Heinzel, Oliver Gerberding

Abstract

In order to achieve the excellent seismic isolation necessary for the operation of gravitational wave detectors, very sensitive inertial sensors are required to measure and counteract the motion of the ground. This paper presents work on a lightweight, compact, and vacuum compatible inertial sensor based on an optomechanical design. It aims to achieve comparable noise performance to the sensors used in current gravitational wave detectors across the frequency region used for seismic isolation control, from 0.1 to 100 Hz. The quasi monolithic design of the device, along with initial measurements of the device quality factor of 28000 and the design philosophy underpinning it, are presented.

Organisation(s)

PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Universität Hamburg

Type

Paper

Publication date

2020

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Control and Systems Engineering, Electrical and Electronic Engineering, Safety, Risk, Reliability and Quality, Electronic, Optical and Magnetic Materials, Control and Optimization, Instrumentation, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1109/INERTIAL48129.2020.9090085 (Access: Closed)