Journal article · Preprint article
Feedback-enhanced sensitivity in optomechanics: Surpassing the parametric instability barrier
The intracavity power, and hence sensitivity, of optomechanical sensors is commonly limited by parametric instability. Here we characterize the degradation of sensitivity induced by parametric instability in a micron-scale cavity optomechanical system. Feedback via optomechanical transduction and electrical gradient force actuation is applied to suppress the parametric instability.
As a result a 5.4-fold increase in mechanical motion transduction sensitivity is achieved to a final value of 1.9×10-18 mHz-1/2.
Language: | English |
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Year: | 2012 |
Pages: | 4 |
ISSN: | 10941622 , 10502947 and 24699926 |
Types: | Journal article and Preprint article |
DOI: | 10.1103/PhysRevA.85.061802 |
ORCIDs: | Andersen, Ulrik L. |