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This study deals with photonic crystal fiber designed to have a zero dispersion wavelength, lambda0 close to 715 nm. A picosecond titanium-sapphire laser pumps the fibre to produce single mode pair-photons at 583 nm signal and 900 nm idler wavelength. The pairs can be collected and detected with lumped efficiencies through 10 nm interference filters up to 24% in the signal channel and 14% in the idler...
We have developed a source of time-correlated photon pairs based on phase matched four-wave mixing in a photonic crystal fiber designed to have a zero dispersion wavelength, lambda0, close to 715nm. We generate parametric gain by pumping close to lambda0 in the normal dispersion regime. By pumping with a pulsed titanium-sapphire (TI-SA) laser tuned to 708 nm we generate pair-photons at 583 nm and...
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