Modeling spectral correlations of photon-pairs generated in liquid-filled photonic crystal fiber

The generation of photon-pairs with controllable spectral correlations is crucial in quantum photonics. Here we present the design of a photonic crystal fiber to generate widely-spaced four-wave mixing bands with spectral correlations that can be tuned through the thermo-optic effect after being infiltrated with heavy water. We present a theoretical study of the purity of the signal (idler) photon generated as a function of temperature, pump spectral linewidth and the length of the fiber.511-6/18-8876CIIC155/2019APN-624TEC2016- 76664-C2-1-RPROMETEO/2019/04