title: Distribution of polarization-entangled photonpairs produced via spontaneous parametric down-conversion within a local-area fiber network: theoretical model and experiment.
abstract: 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.
authors.affiliation: Graduate School of Engineering, The University of Tokyo, Tokyo, Japan. hanchuen@ginjo.t.u-tokyo.ac.jp
authors.forename: Han Chuen
authors.initials: HC
authors.lastname: Lim
authors.forename: Akio
authors.initials: A
authors.lastname: Yoshizawa
authors.forename: Hidemi
authors.initials: H
authors.lastname: Tsuchida
authors.forename: Kazuro
authors.initials: K
authors.lastname: Kikuchi
mesh_terms: D003195:Computer Communication Networks / Q000295:instrumentation*; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008962:Models, Theoretical; D055100:Optical Fibers; D017785:Photons; D011789:Quantum Theory; D012031:Refractometry / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*