Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

Matthaeus Halder; Jeremie Fulconis; Ben Cemlyn; Alex Clark; Chunle Xiong; William J. Wadsworth; John G. Rarity

doi:10.1364/OE.17.004670

Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

Quantum Physics 2009-03-18 v2

Authors: Matthaeus Halder , Jeremie Fulconis , Ben Cemlyn , Alex Clark , Chunle Xiong , William J. Wadsworth , John G. Rarity

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Abstract

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% per photon. For the first time, a Hong-Ou-Mandel interference with unfiltered photons from separate fibre sources is presented.

Keywords

photon pair generation hong-ou-mandel interference quantum optics

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@article{arxiv.0901.2914,
  title  = {Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources},
  author = {Matthaeus Halder and Jeremie Fulconis and Ben Cemlyn and Alex Clark and Chunle Xiong and William J. Wadsworth and John G. Rarity},
  journal= {arXiv preprint arXiv:0901.2914},
  year   = {2009}
}

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10 pages, 6 figures

Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

Abstract

Keywords

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