Quantum key distribution in optical fibers: a comprehensive design view of the overall quantum layer beyond transmission

Распределение квантовых ключей в оптических волокнах: всесторонний взгляд на проектирование квантового уровня за пределами передачи
A. Pagano, R. Mercinelli, Maurizio Valvo, Antonio Manzalini
2024-07-02

QKD layerintegration in telecommunications infrastructureoptical networksquantum key distributionresource sharing model
This paper reports the network operator point of view about the introduction of quantum key distribution (QKD) in optical networks to secure the data plane and/or specific applications, focusing on the design aspects that go beyond pure transmission. The functional architecture of a quantum key distribution network is depicted focusing on the integration in the existing telecommunications infrastructure. Some use cases of the utilization of the QKD layer, presenting results from in-field demonstrations, are reported together with a technology agnostic numerical model about resource sharing in a metropolitan area network environment.
1
A technology-agnostic numerical model for resource sharing of QKD in metropolitan area networks is developed and presented.
2
Design considerations beyond pure transmission (operational and architectural issues) are highlighted for deploying QKD at the network layer.
3
Functional architecture of a QKD network is depicted with emphasis on integration into existing telecommunications infrastructure.
4
Paper presents a network-operator perspective on integrating QKD into optical networks to secure the data plane and specific applications.
5
Several QKD use cases are reported, including results from in-field demonstrations validating practical deployment aspects.

Quantum key distribution (QKD) layer integrated into optical telecommunication networks

Design and integration aspects of deploying QKD in optical fiber networks beyond pure transmission, including functional architecture, resource sharing in metropolitan networks, use cases, and in-field demonstration results

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Publication Date
2024-07-02
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Authors
A. Pagano
R. Mercinelli
Maurizio Valvo
Antonio Manzalini
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