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Descripción
One of the main obstacles to the widespread adoption of quantum cryptography has been the difficulty of integration into standard optical networks, largely due to the tremendous difference in power of classical signals compared with the single quantum used for quantum key distribution. This makes the technology expensive and hard to deploy. In this letter, we show an easy and straightforward integration method of quantum cryptography into optical access networks. In particular, we analyze how a quantum key distribution system can be seamlessly integrated in a standard access network based on the passive optical and time division multiplexing paradigms. The novelty of this proposal is based on the selective post-processing that allows for the distillation of secret keys avoiding the noise produced by other network users. Importantly, the proposal does not require the modification of the quantum or classical hardware specifications neither the use of any synchronization mechanism between the network and quantum cryptography devices.
Internacional	Si
JCR del ISI	Si
Título de la revista	IEEE Photonics Technology Letters
ISSN	1041-1135
Factor de impacto JCR	2,038
Información de impacto
Volumen	26
DOI	10.1109/LPT.2014.2308921
Número de revista	9
Desde la página	881
Hasta la página	884
Mes	MAYO
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Esta actividad pertenece a memorias de investigación

• Autor: Jesus Martinez Mateo (UPM)
• Autor: Alex Ciurana Aguilar (UPM)
• Autor: Vicente Martin Ayuso (UPM)

• Creador: Grupo de Investigación: Grupo de investigación en Información y Computación Cuántica (GIICC)
• Departamento: Matemática Aplicada a Las Tecnologías de la Información y Las Comunicaciones
• Departamento: Lenguajes y Sistemas Informáticos e Ingeniería de Software