Publikationen

Autor	Horoschenkoff, P.; Henrich, J.; Böhn, R.; Khan, I.; Rödiger, J.; Gunkel, M.; Bauch, M.; Benda, J.; Bläcker, P.; Eichhammer, E.; Eismann, U.; Frenck, G.; Griesser, H.; Jontofsohn, W.; Kopshoff, N.; Röhrich, S.; Seidl, F.; Schark, N.; Sollner, E.; von Blanckenburg, D.; Heinemann, A.; Stiemerling, M.; Gärtner, M.
Datum	2025
Art	Journal Article
Abstrakt	Quantum key distribution networks (QKDNs) enable secure communication even in the age of powerful quantum computers. In the hands of a network operator, which can offer its service to many users, the economic viability of a QKDN increases significantly. The highly challenging operator—user relationship in a large-scale network setting demands additional requirements to ensure carrier-grade operation. Addressing this challenge, this work presents a carrier-grade QKDN architecture, which combines the functional QKDN architecture with the operational perspective of a network operator, ultimately enhancing the economic viability of QKDNs. The focus is on the network and key management aspects of a QKDN while assuming state-of-the-art commercial QKD modules. The presented architecture was rolled out within an in-field demonstrator, connecting the cities of Berlin and Bonn over a link distance of 923 km across Germany. We could show that the proposed network architecture is feasible, integrable, and scalable, making it suitable for deployment in real-world networks. Overall, the presented carrier-grade QKDN architecture promises to serve as a blueprint for network operators providing QKD-based services to their customers.
In	J. Opt. Commun. Netw., Vol.17, p.743-756
Publisher	Optica Publishing Group
Schlüssel	Horoschenkoff : 25