Cavity optomechanics in a fiber cavity: the role of stimulated Brillouin scattering

Year: 2022

Authors: Beregi A., Pontin A., Barker P.F.

Autors Affiliation: Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England; UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.

Abstract: We study the role of stimulated Brillouin scattering in a fiber cavity by numerical simulations and a simple theoretical model and find good agreement between experiment, simulation and theory. We also investigate an optomechanical system based on a fiber cavity in the presence of the nonlinear Brillouin scattering. Using simulation and theory, we show that this hybrid optomechanical system increases optomechanical damping for low mechanical resonance frequencies in the unresolved sideband regime. Furthermore, optimal damping occurs for blue detuning in stark contrast to standard optomechanics. We investigate whether this hybrid optomechanical system is capable of cooling a mechanical oscillator to the quantum ground state.

Journal/Review: NEW JOURNAL OF PHYSICS

Volume: 24 (9)      Pages from: 93023-1  to: 93023-16

More Information: This work was supported by EPSRC Grant No. EP/N031105/1.
KeyWords: quantum optics; cavity optomechanics; non-linear optics
DOI: 10.1088/1367-2630/ac894f