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Optics Letters

Optics Letters


  • Vol. 27, Iss. 11 — Jun. 1, 2002
  • pp: 954–956

Single-photon detector for long-distance fiber-optic quantum key distribution

Naoto Namekata, Yuuki Makino, and Shuichiro Inoue  »View Author Affiliations

Optics Letters, Vol. 27, Issue 11, pp. 954-956 (2002)

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We have investigated the performance of an InGaAs/InP avalanche photodiode for photon counting at 1550 nm in the temperature range of thermoelectric cooling. A quantum efficiency of 13.7% was obtained at -55°C , while the dark-count probability per gate (≃1 ns) was kept as small as 2.4×10-5 . The developed single-photon detector would yield a 104.4-km fiber-optic quantum key distribution in the ideal condition.

© 2002 Optical Society of America

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(040.3780) Detectors : Low light level
(040.5160) Detectors : Photodetectors
(040.5570) Detectors : Quantum detectors
(270.0270) Quantum optics : Quantum optics
(270.5570) Quantum optics : Quantum detectors

Naoto Namekata, Yuuki Makino, and Shuichiro Inoue, "Single-photon detector for long-distance fiber-optic quantum key distribution," Opt. Lett. 27, 954-956 (2002)

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