Multiuser quantum key distribution over telecom fiber networks
2009 (English)In: Optics Communications, ISSN 0030-4018, Vol. 282, no 2, 258-262 p.Article in journal (Refereed) Published
We report five-user quantum key distribution (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 (SMF) networks. In both configurations we have achieved transmission distances between 25 km and 50 km with quantum bit error rates between 1.24% and 5.56% for the mean photon number l ¼ 0:1. The measurements have showed feasibility of multiuser QKD over switched fiber networks, using standard fiber telecom components.
Place, publisher, year, edition, pages
2009. Vol. 282, no 2, 258-262 p.
IdentifiersURN: urn:nbn:se:su:diva-26534DOI: 10.1016/j.optcom.2008.10.030ISI: 000261852400018OAI: oai:DiVA.org:su-26534DiVA: diva2:210362