| Autor: |
Honz, Florian, Prawits, Florian, Alia, Obada, Sakr, Hesham, Bradley, Thomas, Zhang, Cong, Slavík, Radan, Poletti, Francesco, Kanellos, George, Nejabati, Reza, Walther, Philip, Simeonidou, Dimitra, Hübel, Hannes, Schrenk, Bernhard |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
As quantum key distribution has reached the maturity level for practical deployment, questions about the co-integration with existing classical communication systems are of utmost importance. To this end we demonstrate how the co-propagation of classical and quantum signals can benefit from the development of novel hollow-core fibers. We demonstrate a secure key rate of 330 bit/s for a quantum channel at 1538 nm in the presence of 25 x 10 Gb/s classical channels, transmitted at an aggregated launch power of 12 dBm, spanning over the C+L-band in the same hollow-core fiber link. Furthermore, we show the co-integration of the classical key-distillation channel onto this fiber link, turning it into a bidirectional fiber link and thereby mitigating the need for multiple fibers. We believe this to be an important step towards the deployment and integration of hollow-core fibers together with DV-QKD for the inherently secure telecom network of the future. |
| Databáze: |
arXiv |
| Externí odkaz: |
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