Triply-resonant Continuous Wave Parametric Source with a Microwatt Pump

Abstract

We demonstrate a nanophotonic parametric light source with a record high normalized conversion efficiency of $3\times 10^6{W}^{-2}$, owing to resonantly enhanced four wave mixing in coupled high-Q photonic crystal resonators. The rate of spontaneously emitted photons reaches 14 MHz.

3 pages 3 figures 1 table