A 1550 nm single-photon detector for long-distance fiber-optic quantum cryptography

Akio Yoshizawa; Hidemi Tsuchida

The 4th Pacific Rim Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2001),
paper WG2_1

A 1550 nm single-photon detector for long-distance fiber-optic quantum cryptography

Akio Yoshizawa and Hidemi Tsuchida

Conference on Lasers and Electro-Optics/Pacific Rim 2001

Chiba Japan
15–19 July 2001
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Optical State Control and Detection [Room G] (WG2)

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A. Yoshizawa and H. Tsuchida, "A 1550 nm single-photon detector for long-distance fiber-optic quantum cryptography," in The 4th Pacific Rim Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2001), paper WG2_1.

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Abstract

We report a thermoelectrically cooled gated-mode single-photon detector operating at 1550 nm. The obtained quantum efficiency (~ 11.6%) and the dark count probability (~ 2×10⁻⁵) per gate makes it possible to realize long-distance Fiber-optic quantum cryptography with a small quantum bit-error rate.

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