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Proceedings Paper

Higher fidelity source of entangled photon-pairs from a photonic crystal fiber via mode expansion and Bragg filtering
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Paper Abstract

We report the development of a fiber-based single-spatial-mode source of photon-pairs where the efficiency of extracting photon pairs is 14× higher than a previous implementation [16]. This critical improvement in efficiency enabled a spectrally bright and pure photon-pair source having a small second-order correlation function (0.03) and a raw spectral brightness of 44,700 pairs/(s nm mW). The source can be configured to generate entangled photon-pairs, characterized via optimal and minimal quantum state tomography, to have a fidelity of 97% and tangle of 92%, without correcting for accidentals.

Paper Details

Date Published: 26 August 2009
PDF: 11 pages
Proc. SPIE 7465, Quantum Communications and Quantum Imaging VII, 74650E (26 August 2009); doi: 10.1117/12.824362
Show Author Affiliations
Alexander Ling, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)
Jun Chen, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)
Jingyun Fan, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)
Alan Migdall, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 7465:
Quantum Communications and Quantum Imaging VII
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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