Abstract
We review a scheme for performing a backaction-evading measurement of one mechanical quadrature in an optomechanical setup. The experimental application of this scheme has been limited by parametric instabilities caused in general by a slight dependence of the mechanical frequency on the electromagnetic energy in the cavity. We find that a simple modification to the optical drive can effectively eliminate the parametric instability even at high intracavity power, allowing realistic devices to achieve sub-zero-point uncertainties in the measured quadrature.
Original language | English (US) |
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Article number | 023838 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 88 |
Issue number | 2 |
DOIs | |
State | Published - Aug 21 2013 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics