Experimental long wavelength quantum cryptography: From single-photon transmission to key extraction protocols

We present experiments on long wavelength (δ = 1.55 μm) 'plug and play' quantum cryptography systems. We discuss the performance of single-photon detectors at δ = 1.55 μm. Furthermore, we address the full implementation of the quantum cryptography protocol, discussing in detail the impleme...

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Veröffentlicht in:Journal of modern optics 2000, Vol.47 (2-3), p.563-579
Hauptverfasser: Bourennane, Mohamed, Ljunggren, Daniel, Karlsson, Anders, Jonsson, Per, Hening, Alexandru, Ciscar, Juan Pena
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container_end_page 579
container_issue 2-3
container_start_page 563
container_title Journal of modern optics
container_volume 47
creator Bourennane, Mohamed
Ljunggren, Daniel
Karlsson, Anders
Jonsson, Per
Hening, Alexandru
Ciscar, Juan Pena
description We present experiments on long wavelength (δ = 1.55 μm) 'plug and play' quantum cryptography systems. We discuss the performance of single-photon detectors at δ = 1.55 μm. Furthermore, we address the full implementation of the quantum cryptography protocol, discussing in detail the implementation of protocols for error correction and privacy amplification needed to get a secure key. We illustrate the theory with examples from a full software simulation to show the performance of the complete protocol in terms of final secure key creation rate.
doi_str_mv 10.1080/09500340008244060
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subjects Electrical engineering, electronics and photonics
Elektroteknik, elektronik och fotonik
Error correction
Fotonik
Light transmission
Optical fibers
Photodiodes
Photonics
Photons
Quantum optics
TECHNOLOGY
TEKNIKVETENSKAP
Wavelength division multiplexing
title Experimental long wavelength quantum cryptography: From single-photon transmission to key extraction protocols
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