期刊
PHYSICS LETTERS A
卷 382, 期 33, 页码 2238-2244出版社
ELSEVIER
DOI: 10.1016/j.physleta.2017.08.008
关键词
Gravitational-wave detectors; Quantum noise; Internal squeezing; Optical spring; Optical bar
资金
- Deutsche Forschungsgemeinschaft (DFG) [SCHN 757/6-1]
- LIGO NSF Grant [PHY-1305863]
- Russian Foundation for Basic Research [16-52-10069, 16-52-12031]
The 'optical spring' results from dynamical back-action and can be used to improve the sensitivity of cavity-enhanced gravitational-wave detectors The effect occurs if an oscillation of the cavity length results in an oscillation of the intra-cavity light power having such a phase relation that the light's radiation pressure force amplifies the oscillation of the cavity length Here, we analyse a Michelson interferometer whose optical-spring cavity includes an additional optical-parametric amplifier with adjustable phase We find that the phase of the parametric pump field is a versatile parameter for shaping the interferometer's spectral density (C) 2017 Elsevier B.V. All rights reserved.
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