Quantum-Limited Measurements Using an Optical Cavity with Modulated Intrinsic Loss

We analyze a cavity optomechanical setup, in which the position of an oscillator modulates the internal optical loss. We show that, in contrast to systems with a fixed internal loss, in such a setup, quantum-limited position measurements can be performed and formulate conditions under which it is possible. Additionally, under these conditions the setup exhibits a number of potential benefits for practical operation, including the complete absence of dynamical backaction and optomechanical instability, rejection of classical laser noise, and thermal fluctuations of cavity frequency from the measurement record. We address a few potential experimental implementations of this setup.


Published in:
Physical Review Letters, 123, 4, 043602
Year:
Jul 23 2019
Publisher:
College Pk, AMER PHYSICAL SOC
ISSN:
0031-9007
1079-7114
Keywords:
Laboratories:




 Record created 2019-08-13, last modified 2019-08-30


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)