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 900 nm visible to efficient silicon- based photon counting detectors. We can generate >100000 detected pairs per second (in a single spatial and temoral mode) with a few milli-watts of pump power. Using this source we have been able to show high visibility multi-photon interference, by mixing at a 50:50 beam-splitter, two heralded single photons generated in spatially separated micro-structured fibres. The source brightness meant we were able to measure high rates of four- photon generation and detection.
|Translated title of the contribution||Multiphoton experiments using fibre pair photon sources|
|Title of host publication||European Conference on Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference (CLEOE-IQEC 2007), Munich, Germany|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Publication status||Published - 17 Jun 2007|
Rarity, JG., Clark, AS., Fulconis, J., Alibart, O., O'Brien, JL., & Wadsworth, WJ. (2007). Multiphoton experiments using fibre pair photon sources. In European Conference on Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference (CLEOE-IQEC 2007), Munich, Germany Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/CLEOE-IQEC.2007.4386780