Optics Express

O-band QKD link over a multiple ONT loaded carrier-grade GPON for FTTH applications

Nikolaos Makris, Argiris Ntanos, A. Papageorgopoulos, T. Stathopoulos, Persefoni Konteli, Aristeidis Stathis, Giannis Giannoulis, Iliana Tsoni, Fotini Setaki, Dimitris Zavitsanos, George Lyberopoulos, H. Avramopoulos, Dimitris Syvridis, George Theodore Kanellos

Published May 21, 2024• 5 citations

Publisher

Abstract

We have successfully demonstrated the integration of a commercial O-band Quantum Key Distribution (QKD) system over a testbed that replicates a carrier-grade Fiber-to-the-Home (FTTH) optical access network consisting of components and systems installed in real-life FTTH operational deployments. The experiment demonstrated a QKD transmission over a 1:16 user Gigabit Optical Passive Network (GPON) configuration featuring a total of 9 Optical Network Terminals (ONTs) at the premises of the Telecom Operator COSMOTE that followed the operator's standard FTTH divided in two splitting stages. The architecture we implemented was a downstream access network with the quantum transmitter located at the operator's Central Office (CO) and the quantum receiver located on the end user's side.

DOI: 10.1364/oe.518564

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