• DocumentCode
    3068452
  • Title

    Quantum key distribution over a 60-dB channel loss using SSPD with ultralow dark count rate

  • Author

    Shibata, Hajime ; Honjo, Toshimori ; Shimizu, Kazuo

  • Author_Institution
    NTT Basic Res. Labs., NTT Corp., Atsugi, Japan
  • fYear
    2013
  • fDate
    June 30 2013-July 4 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We present the first quantum key distribution (QKD) experiment over 60 dB channel loss, which is equivalent to 300 km of fiber. We use the differential phase shift QKD protocol and ultra-low dark count SSPDs.
  • Keywords
    cryptographic protocols; optical communication equipment; quantum cryptography; superconducting photodetectors; channel loss; differential phase shift QKD protocol; distance 300 km; loss 60 dB; quantum key distribution; superconducting nanowire single photon detector; ultralow dark count SSPD; ultralow dark count rate; Attenuators; Cryptography; Detectors; Optical fibers; Phase modulation; Photonics; Power transmission lines;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
  • Conference_Location
    Kyoto
  • Type

    conf

  • DOI
    10.1109/CLEOPR.2013.6600637
  • Filename
    6600637
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3068452