  We demonstrate a picosecond source of correlated photon pairs using a
micro-structured fibre with zero dispersion around 715 nm wavelength. The fibre
is pumped in the normal dispersion regime at ~708 nm and phase matching is
satisfied for widely spaced parametric wavelengths. Here we generate up to 10^7
photon pairs per second in the fibre at wavelengths of 587 nm and 897 nm. On
collecting the light in single-mode-fibre-coupled Silicon avalanche diode
photon counting detectors we detect ~3.2.10^5 coincidences per second at pump
power 0.5 mW.
