Subcarrier Wave Quantum Key Distribution in Telecommunication Network with Bitrate 800 kbit/s

A. V. Gleim*, Yu V. Nazarov, V. I. Egorov, S. V. Smirnov, O. I. Bannik, V. V. Chistyakov, S. M. Kynev, A. A. Anisimov, S. A. Kozlov, V. N. Vasiliev

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


In the course of work on creating the first quantum communication network in Russia we demonstrated quantum key distribution in metropolitan optical network infrastructure. A single-pass subcarrier wave quantum cryptography scheme was used in the experiments. BB84 protocol with strong reference was chosen for performing key distribution. The registered sifted key rate in an optical cable with 1.5 dB loss was 800 Kbit/s. Signal visibility exceeded 98%, and quantum bit error rate value was 1%. The achieved result is a record for this type of systems.

Original languageEnglish
Article number10005
Number of pages2
JournalE3S Web of Conferences
Publication statusPublished - 25 Sep 2015
Event12th International Workshop on Quantum Optics, IWQO 2015 - Moscow, Troitsk, Russian Federation
Duration: 11 Aug 201516 Aug 2015

Bibliographical note

© Owned by the authors, published by EDP Sciences, 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


  • Optical fiber
  • Quantum cryptography
  • Sideband
  • Telecom network

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