Co-Existence of Quantum-Key Distribution and Classical Transmission in Space-Division Multiplexed Fiber-Optic Systems: Modelling and Validation Over Field-Deployed Multi-Core Fibers

Wu, Qi; Ribezzo, D.; Di Sciullo, G.; Cocchi, S.; Shaji, D. A.; Zischler, L. A.; Luis, R.; Serena, P.; Lasagni, C.; Bononi, A.; Hayashi, T.; Gagliano, A.; Martelli, P.; Gatto, A.; Parolari, P.; Boffi, P.; Bacco, D.; Zavatta, A.; Zhu, Y.; Hu, W.; Xu, Z.; Shtaif, M.; Marotta, A.; Graziosi, F.; Mecozzi, A.; Antonelli, C.

doi:10.1109/ecoc66593.2025.11263049

We propose an analytical model for inter-core spontaneous Raman scattering noise in multi-core fiber systems with co-existing quantum-key distribution and classical transmission in the C-band. The model is experimentally validated over field-deployed multi-core fibers.

Co-Existence of Quantum-Key Distribution and Classical Transmission in Space-Division Multiplexed Fiber-Optic Systems: Modelling and Validation Over Field-Deployed Multi-Core Fibers

Wu, Qi;Ribezzo, D.;Di Sciullo, G.;Cocchi, S.;Shaji, D. A.;Zischler, L. A.;Luis, R.;Serena, P.;Lasagni, C.;Bononi, A.;Hayashi, T.;Gagliano, A.;Martelli, P.;Gatto, A.;Parolari, P.;Boffi, P.;Bacco, D.;Zavatta, A.;Zhu, Y.;Hu, W.;Xu, Z.;Shtaif, M.;Marotta, A.;Graziosi, F.;Mecozzi, A.;Antonelli, C.

2025-01-01

Abstract

We propose an analytical model for inter-core spontaneous Raman scattering noise in multi-core fiber systems with co-existing quantum-key distribution and classical transmission in the C-band. The model is experimentally validated over field-deployed multi-core fibers.