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Title: Multi-channeled NbN superconducting single photon detectors (SSPDs) system with NbN meander nanowires

Abstract

A superconducting single photon detector (SSPD) is promising candidate of the detector in a quantum key distribution (QKD) system, because of its low dark count and high speed repetition rate. We have developed the SSPD system cooled by a GM cryocooler. In this system, and the work surface can be cooled 2.95 K and up to 6 SSPDs can be installed. The active areas of SSPDs are 10x10 {mu}m{sup 2} or 20x20 {mu}m{sup 2}, and the system detection efficiency at dark count rate of 100 Hz reached 2.6% at a wavelength of 1550 nm.

Authors:
;  [1]; ;  [2]
  1. National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitama, Koganei, Tokyo 184-8795 (Japan)
  2. Kobe Advanced Research Center, National Institute of Information and Communications Technology, 588-2, Iwaoka, Nishi-ku, Kobe, Hyogo 651-2492 (Japan)
Publication Date:
OSTI Identifier:
21301063
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1110; Journal Issue: 1; Conference: 9. international conference on QCMC (Quantum Communication, Measurement and Computing), Calgary (Canada), 19-24 Aug 2008; Other Information: DOI: 10.1063/1.3131327; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; COUNTING RATES; CRYOGENICS; EFFICIENCY; NIOBIUM NITRIDES; PHOTONS; QUANTUM WIRES; RADIATION DETECTION; RADIATION DETECTORS; SUPERCONDUCTING DEVICES; SURFACES; VELOCITY; WAVELENGTHS

Citation Formats

Fujiwara, Mikio, Sasaki, Masahide, Miki, Shigehito, and Zhen, Wang. Multi-channeled NbN superconducting single photon detectors (SSPDs) system with NbN meander nanowires. United States: N. p., 2009. Web. doi:10.1063/1.3131327.
Fujiwara, Mikio, Sasaki, Masahide, Miki, Shigehito, & Zhen, Wang. Multi-channeled NbN superconducting single photon detectors (SSPDs) system with NbN meander nanowires. United States. doi:10.1063/1.3131327.
Fujiwara, Mikio, Sasaki, Masahide, Miki, Shigehito, and Zhen, Wang. Mon . "Multi-channeled NbN superconducting single photon detectors (SSPDs) system with NbN meander nanowires". United States. doi:10.1063/1.3131327.
@article{osti_21301063,
title = {Multi-channeled NbN superconducting single photon detectors (SSPDs) system with NbN meander nanowires},
author = {Fujiwara, Mikio and Sasaki, Masahide and Miki, Shigehito and Zhen, Wang},
abstractNote = {A superconducting single photon detector (SSPD) is promising candidate of the detector in a quantum key distribution (QKD) system, because of its low dark count and high speed repetition rate. We have developed the SSPD system cooled by a GM cryocooler. In this system, and the work surface can be cooled 2.95 K and up to 6 SSPDs can be installed. The active areas of SSPDs are 10x10 {mu}m{sup 2} or 20x20 {mu}m{sup 2}, and the system detection efficiency at dark count rate of 100 Hz reached 2.6% at a wavelength of 1550 nm.},
doi = {10.1063/1.3131327},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1110,
place = {United States},
year = {2009},
month = {4}
}