High speed coherent one-way quantum key distribution prototype

• Published in: arXiv.org
• Main Authors: Stucki, Damien, Barreiro, Claudio, Fasel, Sylvain, Jean-Daniel, Gautier, Gay, Olivier, Gisin, Nicolas, Thew, Rob, Thoma, Yann, Trinkler, Patrick, Vannel, Fabien, Zbinden, Hugo
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 30.09.2008
• Subjects: Avalanche diodes; Laboratories; Photodiodes; Physics - Quantum Physics; Quantum cryptography; Transmission lines

We report the first real world implementation of a Quantum Key Distribution (QKD) system over a 43dB-loss transmission line in the Swisscom fibre optic network. The QKD system is capable of continuous and autonomous operation and uses the coherent one-way (COW) protocol. This system brings together...