Journal of Optics B Quantum and Semiclassical Optics
Optimization and transfer of vacuum squeezing from an optical parametric oscillator
Ping Koy Lam, Timothy C. Ralph, B. C. Buchler, David E. McClelland, Hans‐A. Bachor, Jiangrui Gao
Abstract
We report the observation of more than 7 dB of vacuum squeezing from a below-threshold optical parametric oscillator (OPO). We discuss design criteria and experimental considerations for its optimization and demonstrate that the vacuum squeezing can be electro-optically transferred to a bright beam using a feed-forward loop. This is compared with the bright intensity squeezed beam generated by running the OPO as a de-amplifier.