Atom-resonant squeezed light from a tunable monolithic ppRKTP parametric amplifier
arXiv:1801.02047 · doi:10.1364/OL.43.000643
Abstract
We demonstrate vacuum squeezing at the D1 line of atomic rubidium (795 nm) with a tunable, doubly-resonant, monolithic sub-threshold optical parametric oscillator in periodically-poled Rb-doped potassium titanyl phosphate. The squeezing appears to be undiminished by a strong dispersive optical nonlinearity recently observed in this material.