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arXiv · 1304.6779

Optomechanical back-action evading measurement without parametric instability

Steven K. Steinke·K. C. Schwab·Pierre Meystre
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Abstract

We review a scheme for performing a back-action 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.

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Steven K. Steinke, K. C. Schwab, Pierre Meystre. 2013-08-09. Optomechanical back-action evading measurement without parametric instability. https://doi.org/10.1103/physreva.88.023838

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