Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources.

@article{Halder2009Nonclassical2I,
  title={Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources.},
  author={Matth{\"a}us M Halder and J. Fulconis and Ben Cemlyn and Alex Clark and Chunle Xiong and William J. Wadsworth and John G. Rarity},
  journal={Optics express},
  year={2009},
  volume={17 6},
  pages={4670-6}
}
In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres. Careful engineering of the phase matching conditions in the fibres enables us to create photon pairs at 597 nm and 860 nm in an intrinsically factorable state showing no spectral correlations. This allows for heralding one photon in a pure state and hence renders narrow band filtering obsolete. The source is narrow band, bright and achieves an overall detection efficiency of up to 21… CONTINUE READING
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Spectral properties of photon pairs generated by spontaneous four wave mixing in inhomogeneous photonic crystal fibers

2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology • 2011
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Conditional preparation of single photons using parametric downconversion: a recipe for purity

P. J. Mosley, J. S. Lundeen, B. J. Smith, I. A. Walmsley
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