Open AccessDistribution of polarization-entangled photonpairs produced via spontaneous parametric down-conversion within a local-area fiber network: Theoretical model and experiment
Author(s) -
Han Chuen Lim,
Akio Yoshizawa,
Hidemi Tsuchida,
K. Kikuchi
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.014512
Subject(s) - quantum entanglement , spontaneous parametric down conversion , photon entanglement , physics , photon , polarization (electrochemistry) , parametric statistics , optics , photon polarization , quantum key distribution , optical fiber , quantum mechanics , quantum , chemistry , statistics , mathematics
We present a theoretical model for the distribution of polarization-entangled photon-pairs produced via spontaneous parametric down-conversion within a local-area fiber network. This model allows an entanglement distributor who plays the role of a service provider to determine the photon-pair generation rate giving highest two-photon interference fringe visibility for any pair of users, when given user-specific parameters. Usefulness of this model is illustrated in an example and confirmed in an experiment, where polarization-entangled photon-pairs are distributed over 82 km and 132 km of dispersion-managed optical fiber. Experimentally observed visibilities and entanglement fidelities are in good agreement with theoretically predicted values.