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Optical Fiber Communication Conference

Ultra-fast differential-phase-shift quantum key distribution using single-photon detectors based on up-conversion in periodically poled lithium niobate waveguides

Hiroki Takesue, Toshimori Honjo, Kyo Inoue, Eleni Diamanti, Carsten Langrock, N.M. Fejer, Y. Yaniamoto

Published Jan 1, 2006• 2 citations
Publisher

Abstract

We report a differential-phase-shift quantum key distribution experiment in which we employed single photon detectors based on frequency up-conversion in periodically poled lithium niobate waveguides. We achieved a shifted key rate of 1 Mbit/s over 30 km of optical fiber, which is two orders of magnitude larger than the previous record.
DOI
10.1109/ofc.2006.216005

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