Characterization and stability measurement of deployed multicore fibers for quantum applications

Anno: 2021

Autori: Bacco D., Biagi N., Vagniluca I., Hayashi T., Mecozzi A., Antonelli C., Oxenlowe L.K., Zavatta A.

Affiliazione autori: Tech Univ Denmark, DTU Foton, CoE SPOC, DK-2800 Lyngby, Denmark; CNR, INO, Ist Nazl Ott, Largo E Fermi 6, I-50125 Florence, Italy; Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy; Univ Naples Federico II, Dept Phys Ettore Pancini, Via Cinthia 21, I-80126 Naples, Italy; Sumitomo Elect Ind Ltd, Opt Commun Lab, Yokohama, Kanagawa 2448588, Japan; Univ Aquila, Dept Phys & Chem Sci, I-67100 Laquila, Italy; CNIT, Natl Lab Adv Opt Fibers Photon FIBERS, I-67100 Laquila, Italy.

Abstract: Multicore fibers are expected to be a game-changer in the coming decades thanks to their intrinsic properties, allowing a larger transmission bandwidth and a lower footprint in optical communications. In addition, multicore fibers have recently been explored for quantum communication, attesting to their uniqueness in transporting high-dimensional quantum states. However, investigations and experiments reported in literature have been carried out in research laboratories, typically making use of short fiber links in controlled environments. Thus, the possibility of using long-distance multicore fibers for quantum applications is still to be proven. We characterize here for the first time, to the best of our knowledge, in terms of phase stability, multiple strands of a four-core multicore fiber installed underground in the city of L?Aquila, with an overall fiber length up to about 25 km. In this preliminary study, we investigate the possibility of using such an infrastructure to implement quantumenhanced schemes, such as high-dimensional quantum key distribution, quantum-based environmental sensors, and more, in general, quantum communication protocols.

Giornale/Rivista: PHOTONICS RESEARCH

Volume: 9 (10)      Da Pagina: 1992  A: 1997

Maggiori informazioni: Horizon 2020 Framework Programme OpenQKD (857156), SQUARE (731473); Ministero dell´Istruzione, dell´Universita e della Ricerca (INCIPIT); H2020 Science with and for Society (G5485); Danmarks Grundforskningsfond SPOC (123).
Parole chiavi: multicore fibers
DOI: 10.1364/PRJ.425890

Citazioni: 9
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-04
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