Urban intermodal quantum key distribution at 1550 nm under daylight conditions

Ilektra Karakosta-Amarantidou; Francesco Picciariello; Edoardo Rossi; Marco Avesani; Luca Calderaro; Giulio Foletto; Giuseppe Vallone; Paolo Villoresi; Francesco Vedovato

doi:10.1117/12.3003523

1 April 2024 Urban intermodal quantum key distribution at 1550 nm under daylight conditions

Ilektra Karakosta-Amarantidou, Francesco Picciariello, Edoardo Rossi, Marco Avesani, Luca Calderaro, Giulio Foletto, Giuseppe Vallone, Paolo Villoresi, Francesco Vedovato

Author Affiliations +

Proceedings Volume PC12911, Quantum Computing, Communication, and Simulation IV; PC129110J (2024) https://doi.org/10.1117/12.3003523
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

Intermodal quantum key distribution (IM-QKD) enables the integration of fiber networks and free-space channels, which are both necessary elements for the development of a global quantum network. IM-QKD permits to extend the reach of free-space links without trusting any additional node, but this requires to efficiently couple the freespace signal into a single-mode fiber (SMF). We present a preliminary point-to-point test conducted in a 620 m free-space channel, with the aim to be used in an intermodal QKD architecture switching between a fiber and a free-space link.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ilektra Karakosta-Amarantidou, Francesco Picciariello, Edoardo Rossi, Marco Avesani, Luca Calderaro, Giulio Foletto, Giuseppe Vallone, Paolo Villoresi, and Francesco Vedovato "Urban intermodal quantum key distribution at 1550 nm under daylight conditions", Proc. SPIE PC12911, Quantum Computing, Communication, and Simulation IV, PC129110J (1 April 2024); https://doi.org/10.1117/12.3003523

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