title: Quantum entanglement distribution with 810 nm photons through active telecommunication fibers.
abstract: We demonstrate the distribution of polarization-entangled photons for the purpose of quantum key distribution (QKD) along active telecom fibers. Entangled photon pairs of 810 nm wavelength generated by a Sagnac interferometer source were coupled into standard telecom single mode fibers. The fibers were either dark or carrying a standardized 1550 nm ethernet signals (1000BASE-ZX) with a nominal speed of 1 GBps from regular media converter devices, without any requirements on the optical power or spectrum transmitted. Our system demonstrates a QKD network covering 6 km in distance with a central service provider for classical and quantum data.
authors: Institute for Quantum Computing, University of Waterloo, 200 University Ave., West Waterloo, Ontario, N2L 3G1, Canada. c2hollow@iqc.ca
authors: Catherine
authors: C
authors: Holloway
authors: Evan
authors: E
authors: Meyer-Scott
authors: Chris
authors: C
authors: Erven
authors: Thomas
authors: T
authors: Jennewein