Opto-mechanical interactions in laser interferometric gravitational wave detectors

Jue Zhang

Research output: ThesisDoctoral Thesis

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Abstract

This thesis explores techniques to improve the sensitivity of the gravitational wave detectors. The method of suppressing parametric instability by designing the new detector parameters is explored. This would allow higher circulating power for improving the shot-noise limited sensitivity. A demonstration of principle experiment with an optical parametric amplifier inside an opto-mechanical cavity showed modifying optical spring effects. This paves the way for implementation of similar configuration in current and future detectors. The thesis then investigates a detector configuration using double-carrier and megahertz squeezing injection to achieve sensitivity enhancement with less technical noise injection in the audio-frequency band.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • Zhao, Chunnong, Supervisor
  • Ju, Li, Supervisor
Award date27 Apr 2022
DOIs
Publication statusUnpublished - 2021

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