Detail publikačního výsledku

Quantum Key Distribution over Multimode Fiber Infrastructure

Ondrej Klicnik; Nikolaos Makris; Argiris Ntanos; Aris Stathis; Grigoris Anastasiou; Konstantinos Tsimvrakidis; Giannis Giannoulis; Hercules Avramopoulos; Petr Munster; George Kanellos; Tomas Horvath

Originální název

Quantum Key Distribution over Multimode Fiber Infrastructure

Anglický název

Quantum Key Distribution over Multimode Fiber Infrastructure

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

This paper evaluates the feasibility of off-the-shelf quantum key distribution (QKD) systems over multimode fiber (MMF) links. QKD systems with two types of encoding, polarization-based and phase/time-bin-based, are tested using OM1, OM3, and OM4 fibers, with single mode fiber (SMF) as a reference. The connection between single mode QKD components and MMF forms an interferometric single mode-multi mode-single mode (SMS) structure that exhibits intensity fluctuations. These, together with modal dispersion enabled by mode coupling, lead to decoherence in phase-encoded systems and significant depolarization in polarization-encoded systems. To minimize mode excitation, the fibers are operated in an underfilled launch regime, enabling near-single mode transmission over short spans.

Anglický abstrakt

This paper evaluates the feasibility of off-the-shelf quantum key distribution (QKD) systems over multimode fiber (MMF) links. QKD systems with two types of encoding, polarization-based and phase/time-bin-based, are tested using OM1, OM3, and OM4 fibers, with single mode fiber (SMF) as a reference. The connection between single mode QKD components and MMF forms an interferometric single mode-multi mode-single mode (SMS) structure that exhibits intensity fluctuations. These, together with modal dispersion enabled by mode coupling, lead to decoherence in phase-encoded systems and significant depolarization in polarization-encoded systems. To minimize mode excitation, the fibers are operated in an underfilled launch regime, enabling near-single mode transmission over short spans.

Klíčová slova

quantum key distribution; multimode fiber; singlemode fiber; depolarization; decoherence; intensity fluctuations

Klíčová slova v angličtině

quantum key distribution; multimode fiber; singlemode fiber; depolarization; decoherence; intensity fluctuations

Autoři

Ondrej Klicnik; Nikolaos Makris; Argiris Ntanos; Aris Stathis; Grigoris Anastasiou; Konstantinos Tsimvrakidis; Giannis Giannoulis; Hercules Avramopoulos; Petr Munster; George Kanellos; Tomas Horvath

Vydáno

08.04.2026

Nakladatel

IEEE

Místo

Kobe, Japan

ISBN

979-8-3315-6110-9

Kniha

Proceedings 2026 International Conference on Quantum Communications Networking and Computing Qcnc 2026

Strany od

1

Strany do

5

Strany počet

5

URL

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11500269

BibTex

@inproceedings{BUT201188,
  author="Ondřej {Klíčník} and  {} and  {} and  {} and  {} and  {} and  {} and  {} and Petr {Münster} and  {} and Tomáš {Horváth}",
  title="Quantum Key Distribution over Multimode Fiber Infrastructure",
  booktitle="Proceedings 2026 International Conference on Quantum Communications Networking and Computing Qcnc 2026",
  year="2026",
  pages="5",
  publisher="IEEE",
  address="Kobe, Japan",
  doi="10.1109/QCNC69040.2026.00062",
  isbn="979-8-3315-6110-9",
  url="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11500269"
}