Article
High performance quantum key distribution prototype system using a commercial off-the-shelf solution: experimental and emulation demonstrations
Fecha
2017Registro en:
1899-7015
Scopus
Autor
López-Leyva, Josué Aarón
Ruiz Higuera, Jesús
Arvizu Mondragón, Arturo
Santos Aguilar, Joel
Ramos García, Raúl
Ponce Camacho, Miguel Ángel
Institución
Resumen
A continuous variable-quantum key distribution system prototype that uses weak coherent states
with a diffused phase, commercial off-the-shelf devices, complete free space 90-degrees hybrid
and simplified quantum protocol is proposed in this paper. In general, the quantum transmitter-re-
ceiver shows an experimental average quantum bit error rate of 30% using auto-homodyne detec-
tion with 0.25 photons per pulse in locking phase mode. The emulated final secret key rate
measurements were 20 and 40 Kbps for minimum (30 Mbps) and maximum (90 Mbps) throughput,
respectively, in a real traffic network using databases for the quantum keys generated by two true
random number generators.