Field Demonstration of Quantum Key Distribution Coexisting with 110-Tb/s Classical Transmission over Multi-Core Fibers
Qi Wu, Domenico Ribezzo, Giammarco Di Sciullo, S. Cocchi, Divya Ann Shaji, Lucas Zischler, Ruben Soares Luis, Paolo Serena, Chiara Lasagni, A. Bononi, Tetsuya Hayashi, A. Gagliano, P. Martelli, Alberto Gatto, Paola Parolari, Pierpaolo Boffi, Davide Bacco, Alessandro Zavatta, Yixiao Zhu, Weisheng Hu · 2025
We report, for the first time, a field demonstration of quantum key distribution coexisting with 110- Tb/s full C-band dense wavelength-division multiplexed coherent transmission over field-deployed uncou-pled-core multi-core fibers with a standard 125-µm cladding diameter in L'Aquila, Italy. Various coexistence configurations and transmission distances are evaluated.