Share Email Print
cover

Proceedings Paper

Five-user QKD over switched fiber networks
Author(s): Jan Bogdanski; Nima Rafiei; Mohamed Bourennane
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Unconditionally secure multiuser quantum key distribution (QKD) over long distance switched telecom fiber networks will have a revolutionary impact on people's, companies', and governmental exchange of confidential information. We report five-user QKD over switched fiber networks in both star and tree configurations, using the BB84-protocol with phase encoding. Both setups implement polarization insensitive phase modulators, necessary for birefringent single mode fiber networks. In both configurations, for the mean photon number μ=0.1, we have achieved raw rates between 50Hz and 300Hz at distances between 25km to 50km with quantum bit error rates between 1.24% to 5.56%. The measurements have showed feasibility of multiuser QKD over switched telecom fiber networks, using standard fiber telecom components.

Paper Details

Date Published: 5 September 2008
PDF: 8 pages
Proc. SPIE 7092, Quantum Communications and Quantum Imaging VI, 70920K (5 September 2008); doi: 10.1117/12.798228
Show Author Affiliations
Jan Bogdanski, Stockholm Univ. (Sweden)
Nima Rafiei, Stockholm Univ. (Sweden)
Mohamed Bourennane, Stockholm Univ. (Sweden)


Published in SPIE Proceedings Vol. 7092:
Quantum Communications and Quantum Imaging VI
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

© SPIE. Terms of Use
Back to Top