Title :
Automated `plug and play´ quantum key distribution
Author :
Ribordy, G. ; Gautier, J.-D. ; Gisin, N. ; Guinnard, O. ; Zbinden, H.
Author_Institution :
Geneva Univ., Switzerland
fDate :
10/29/1998 12:00:00 AM
Abstract :
An improved `plug and play´ interferometric system for quantum key distribution is presented. Self-alignment and compensation of birefringence remain, while limitations due to reflections are overcome. Original electronics implementing the BB84 protocol makes adjustment simple. Key creation with 0.1 photon per pulse at a rate of 325 Hz with a 2.9% QBER, corresponding to a net rate of 210 Hz, over a 23 km installed cable was realised
Keywords :
birefringence; light interferometry; optical fibre communication; quantum cryptography; 210 Hz; 23 km; 325 Hz; BB84 protocol; QBER; automated plug and play interferometric system; birefringence; compensation; optical fibre cable; quantum key distribution; reflection; self-alignment;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981473
