Experimental simulation of an underwater QKD system in a real scenario

Marco Pinel; Elena Fanella; Sebastiano Cocchi; Marco Menchetti; Tommaso Occhipinti; Alessandro Zavatta; Davide Bacco

doi:10.1117/12.3016787

10 June 2024 Experimental simulation of an underwater QKD system in a real scenario

Marco Pinel, Elena Fanella, Sebastiano Cocchi, Marco Menchetti, Tommaso Occhipinti, Alessandro Zavatta, Davide Bacco

Proceedings Volume 12993, Quantum Technologies 2024; 1299307 (2024) https://doi.org/10.1117/12.3016787
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

In this work, we implement a proof-of-concept underwater free-space Quantum Key Distribution (QKD) system and analyze its performance in a controlled laboratory test environment. We implement a BB84 protocol with time-bin encoding operating at 520 nm. The quantum channel was composed of a five-meter-long tank equipped with the possibility of actively controlling the water turbulence. Finally, we measure the Quantum Bit Error Rate (QBER) in the various scenarios and we report the results together with those relating to the parameters of the considered channel.

Conference Presentation

Citation Download Citation

Marco Pinel, Elena Fanella, Sebastiano Cocchi, Marco Menchetti, Tommaso Occhipinti, Alessandro Zavatta, and Davide Bacco "Experimental simulation of an underwater QKD system in a real scenario", Proc. SPIE 12993, Quantum Technologies 2024, 1299307 (10 June 2024); https://doi.org/10.1117/12.3016787

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