Backaction limits on self-sustained optomechanical oscillations

M. Poot, K. Y. Fong, M. Bagheri, W. H.P. Pernice, H. X. Tang

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43 Scopus citations

Abstract

The maximum amplitude of mechanical oscillators coupled to optical cavities is studied both analytically and numerically. The optical backaction on the resonator enables self-sustained oscillations whose limit cycle is set by the dynamic range of the cavity. The maximum attainable amplitude and the phonon generation quantum efficiency of the backaction process are studied for both unresolved and resolved cavities. Quantum efficiencies far exceeding one are found in the resolved sideband regime where the amplitude is low. On the other hand, the maximum amplitude is found in the unresolved system. Finally, the role of mechanical nonlinearities is addressed.

Original languageEnglish
Article number053826
JournalPhysical Review A
Volume86
Issue number5
DOIs
StatePublished - 26 Nov 2012
Externally publishedYes

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