Two-color squeezing and sub-shot-noise signal recovery in doubly resonant optical parametric oscillators
- 1 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (1), 556-559
- https://doi.org/10.1103/physreva.42.556
Abstract
A monolithic doubly resonant optical parametric oscillator produced signal and idler modes at widely separated wavelengths whose amplitude fluctuations were correlated (53.6±1.0)% below the vacuum-noise level. The system was used to detect modulated signals well below the shot-noise limit.Keywords
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