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Photonic Quantum Computing

Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

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

Year

2009

Paper ID

9225

Status

Preprint

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

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.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2009 reference point for readers tracking recent quantum research.
  • In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0901.2914 [2] arXiv https://arxiv.org/abs/0901.2914 [3] Publisher https://arxiv.org/abs/0901.2914

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