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Leaky cavities with unwanted noise

A. A. Semenov·D. Yu. Vasylyev·W. Vogel·M. Khanbekyan·D. -G. Welsch
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Abstract

A phenomenological approach is developed that allows one to completely describe the effects of unwanted noise, such as the noise associated with absorption and scattering, in high-Q cavities. This noise is modeled by a block of beam splitters and an additional input-output port. The replacement schemes enable us to formulate appropriate quantum Langevin equations and input-output relations. It is demonstrated that unwanted noise renders it possible to combine a cavity input mode and the intracavity mode in a nonmonochromatic output mode. Possible applications to unbalanced and cascaded homodyning of the intracavity mode are discussed and the advantages of the latter method are shown.

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A. A. Semenov, D. Yu. Vasylyev, W. Vogel, M. Khanbekyan, D. -G. Welsch. 2006-09-09. Leaky cavities with unwanted noise. https://doi.org/10.1103/physreva.74.033803

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