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arXiv · 1709.03055

Engineering the Optical Spring via Intra-Cavity Optical-Parametric Amplification

Mikhail Korobko·Farid Ya. Khalili·Roman Schnabel
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Abstract

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.

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Mikhail Korobko, Farid Ya. Khalili, Roman Schnabel. 2017-11-09. Engineering the Optical Spring via Intra-Cavity Optical-Parametric Amplification. https://doi.org/10.1016/j.physleta.2017.08.008

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