Distribution of polarization-entangled photonpairs produced via spontaneous parametric down-conversion within a local-area fiber network: theoretical model and experiment

Opt Express. 2008 Sep 15;16(19):14512-23. doi: 10.1364/oe.16.014512.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computer Communication Networks / instrumentation*
  • Computer Simulation
  • Computer-Aided Design*
  • Equipment Design
  • Equipment Failure Analysis
  • Fiber Optic Technology / instrumentation*
  • Models, Theoretical*
  • Optical Fibers
  • Photons
  • Quantum Theory
  • Refractometry / instrumentation*
  • Telecommunications / instrumentation*