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Integrated quantum key distribution system using single sideband detection

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The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics Aims and scope Submit manuscript

Abstract:

We report a new quantum cryptographic system involving single sideband detection and allowing an implementation of the BB84 protocol. The transmitted bits are reliably coded by the phase of a high frequency modulating signal. The principle of operation is described in terms of both classical and quantum optics. The method has been demonstrated experimentally at 1 550 nm using compact and conventional device technology. Single photon interference has been obtained with a fringe visibility greater than 98%, indicating that the system can be used in view of quantum key distribution potentially beyond 50-km-long standard single-mode fiber.

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Authors and Affiliations

  1. GTL-CNRS Telecom, Georgia Tech Lorraine, 2-3 rue Marconi, 57070 Metz, France, , , , , , GE

    J.-M. Merolla, L. Duraffourg, A. Soujaeff, F. Patois & W.T. Rhodes

  2. Laboratoire d'Optique P.M. Duffieux, Université de Franche-Comté, 25030 Besançon Cedex, France, , , , , , FR

    J.-P. Goedgebuer

Authors
  1. J.-M. Merolla
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  2. L. Duraffourg
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  3. J.-P. Goedgebuer
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  4. A. Soujaeff
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  5. F. Patois
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  6. W.T. Rhodes
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Additional information

Received 13 July 2001 and Received in final form 30 November 2001

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Merolla, JM., Duraffourg, L., Goedgebuer, JP. et al. Integrated quantum key distribution system using single sideband detection. Eur. Phys. J. D 18, 141–146 (2002). https://doi.org/10.1140/epjd/e20020017

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  • DOI: https://doi.org/10.1140/epjd/e20020017

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