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Photothermal fluctuations as a fundamental limit to low-frequency squeezing in a degenerate optical parametric oscillator

Goda, Keisuke; McKenzie, Kirk; Mikhailov, Eugeniy; Lam, Ping Koy; McClelland, David; Mavalvala, Nergis


We study the effect of photothermal fluctuations on squeezed states of light through the photo-refractive effect and thermal expansion in a degenerate optical parametric oscillator (OPO). We also discuss the effect of the photothermal noise in various cases and how to minimize its undesirable consequences. We find that the photothermal noise in the OPO introduces a significant amount of noise on phase squeezed beams, making them less than ideal for low-frequency applications such as...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.72.043819


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