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Conferences > OFC > 2006 > OFL > OFL2
  • Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper OFL2

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

H. Takesue, T. Honjo, K. Inoue, E. Diamanti, C. Langrock, M. M. Fejer, and Y. Yamamoto

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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 sifted key rate of 1 Mbit/s over 30 km of optical fiber, which is two orders of magnitude larger than the previous record.

© 2006 Optical Society of America

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