Quantum key distribution device with coherent states

Jérôme Lodewyck; Matthieu Bloch; Raúl García-Patrón; Simon Fossier; Evgueni Karpov; Eleni Diamanti; Thierry Debuisschert; Nicolas J. Cerf; Rosa Tualle-Brouri; Steven W. McLaughlin; Philippe Grangier

doi:10.1117/12.736855

10 September 2007 Quantum key distribution device with coherent states

Jérôme Lodewyck, Matthieu Bloch, Raúl García-Patrón, Simon Fossier, Evgueni Karpov, Eleni Diamanti, Thierry Debuisschert, Nicolas J. Cerf, Rosa Tualle-Brouri, Steven W. McLaughlin, Philippe Grangier

Author Affiliations +

Proceedings Volume 6780, Quantum Communications Realized; 67800Z (2007) https://doi.org/10.1117/12.736855
Event: Optics East, 2007, Boston, MA, United States

Abstract

We report on both theoretical and experimental aspects of a fully implemented quantum key distribution device with coherent states. This system features a final key rate of more than 2 kb/s over 25 km of optical fiber. It comprises all required elements for field operation: a compact optical setup, a fast secret bit extraction using efficient LDPC codes, privacy amplification algorithms and a classical channel software. Both hardware and software are operated in real time.

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Jérôme Lodewyck, Matthieu Bloch, Raúl García-Patrón, Simon Fossier, Evgueni Karpov, Eleni Diamanti, Thierry Debuisschert, Nicolas J. Cerf, Rosa Tualle-Brouri, Steven W. McLaughlin, and Philippe Grangier "Quantum key distribution device with coherent states", Proc. SPIE 6780, Quantum Communications Realized, 67800Z (10 September 2007); https://doi.org/10.1117/12.736855

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