Presentation 2012-01-26
A field test of high-speed wavelength-division multiplexing quantum key distribution system
Ken-ichiro YOSHINO, Mikio FUJIWARA, Akihiro TANAKA, Seigo TAKAHASHI, Yoshihiro NAMBU, Akihisa TOMITA, Shigehito MIKI, Taro YAMASHITA, Zhen WANG, Masahide SASAKI, Akio TAJIMA,
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Abstract(in English) A high-speed quantum key distribution system was developed with the wavelength-division multiplexing (WDM) technique and dedicated key distillation hardware engines. Two interferometers for encoding and decoding are shared over eight wavelengths to reduce the system's size, cost, and control complexity. The key distillation engines can process a huge amount of data from the WDM channels by using a 1-Mbit block in real time. We demonstrated a 3-channel WDM system that simultaneously uses avalanche photodiodes and superconducting single photon detectors. We achieved 12-hour continuous key generation with a secure key rate of 208 kbps through a 45-km field fiber with 14.5-dB loss.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Quantum key distribution / Wavelength-division multiplexing / Avalanche photo diode / Superconducting single photon detector / Field test
Paper # OCS2011-111
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Conference Information
Committee OCS
Conference Date 2012/1/19(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A field test of high-speed wavelength-division multiplexing quantum key distribution system
Sub Title (in English)
Keyword(1) Quantum key distribution
Keyword(2) Wavelength-division multiplexing
Keyword(3) Avalanche photo diode
Keyword(4) Superconducting single photon detector
Keyword(5) Field test
1st Author's Name Ken-ichiro YOSHINO
1st Author's Affiliation System Platforms Research Laboratories, NEC Corporation()
2nd Author's Name Mikio FUJIWARA
2nd Author's Affiliation Quantum ICT Laboratory, National Institute of Information and Communications Technology
3rd Author's Name Akihiro TANAKA
3rd Author's Affiliation System Platforms Research Laboratories, NEC Corporation
4th Author's Name Seigo TAKAHASHI
4th Author's Affiliation System Platforms Research Laboratories, NEC Corporation
5th Author's Name Yoshihiro NAMBU
5th Author's Affiliation Green Innovation Research Laboratories, NEC Corporation
6th Author's Name Akihisa TOMITA
6th Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
7th Author's Name Shigehito MIKI
7th Author's Affiliation Nano ICT Laboratory, National Institute of Information and Communications Technology
8th Author's Name Taro YAMASHITA
8th Author's Affiliation Nano ICT Laboratory, National Institute of Information and Communications Technology
9th Author's Name Zhen WANG
9th Author's Affiliation Nano ICT Laboratory, National Institute of Information and Communications Technology
10th Author's Name Masahide SASAKI
10th Author's Affiliation Quantum ICT Laboratory, National Institute of Information and Communications Technology
11th Author's Name Akio TAJIMA
11th Author's Affiliation System Platforms Research Laboratories, NEC Corporation
Date 2012-01-26
Paper # OCS2011-111
Volume (vol) vol.111
Number (no) 411
Page pp.pp.-
#Pages 4
Date of Issue