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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 6 — Mar. 16, 2009
  • pp: 4670–4676

Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources

M. Halder, J. Fulconis, B. Cemlyn, A. Clark, C. Xiong, W. J. Wadsworth, and J. G. Rarity  »View Author Affiliations

Optics Express, Vol. 17, Issue 6, pp. 4670-4676 (2009)

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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.

© 2009 Optical Society of America

OCIS Codes
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: January 14, 2009
Revised Manuscript: February 20, 2009
Manuscript Accepted: March 5, 2009
Published: March 9, 2009

M. Halder, J. Fulconis, B. Cemlyn, A. Clark, C. Xiong, W. J. Wadsworth, and J. G. Rarity, "Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources," Opt. Express 17, 4670-4676 (2009)

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