μW Pumping for MHz Photon Pair Generation Rates Enabled by χ(2) Organic Chromophores

Integrated photon pair generation based on spontaneous parametric down conversion (SPDC) or spontaneous four wave mixing (SFWM) promise to be a low-cost alternative to current table-top setups for the generation of entangled photons or heralded single photons [1] . Integrated devices feature smallest mode volumes. This enables higher pair-generation rates per pump-power compared to free-space components.