Nonclassical interference and entanglement generation using a photonic crystal fiber pair photon source

We demonstrate two key components for optical quantum information processing: a bright source of heralded single photons; and a bright source of entangled photon pairs. A pair of pump photons produces a correlated pair of photons at widely spaced wavelengths (583 nm and 900 nm), via a chi((3)) four-...

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Bibliographic Details
Published inPhysical review letters Vol. 99; no. 12; p. 120501
Main Authors Fulconis, Jérémie, Alibart, Olivier, O'Brien, Jeremy L, Wadsworth, William J, Rarity, John G
Format Journal Article
LanguageEnglish
Published United States 21.09.2007
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Summary:We demonstrate two key components for optical quantum information processing: a bright source of heralded single photons; and a bright source of entangled photon pairs. A pair of pump photons produces a correlated pair of photons at widely spaced wavelengths (583 nm and 900 nm), via a chi((3)) four-wave mixing process. We demonstrate nonclassical interference between heralded photons from independent sources with a visibility of 95% (after correction for background), and an entangled photon pair source, with a fidelity of 89% with a Bell state.
ISSN:0031-9007
DOI:10.1103/physrevlett.99.120501