Experimental repeater-like quantum communications over 600 km of optical fibre with wavelength-multiplexed phase stabilisation

Mirko Pittaluga; Mirko Pittaluga; Mariella Minder; Mariella Minder; Marco Lucamarini; Marco Lucamarini; Mirko Sanzaro; Robert I. Woodward; Ming-Jun Li; Zhiliang Yuan; Andrew J. Shields

doi:10.1364/FIO.2021.FM1C.4

Frontiers in Optics + Laser Science 2021
Technical Digest Series (Optica Publishing Group, 2021),
paper FM1C.4
•https://doi.org/10.1364/FIO.2021.FM1C.4

Experimental repeater-like quantum communications over 600 km of optical fibre with wavelength-multiplexed phase stabilisation

Mirko Pittaluga, Mariella Minder, Marco Lucamarini, Mirko Sanzaro, Robert I. Woodward, Ming-Jun Li, Zhiliang Yuan, and Andrew J. Shields

Frontiers in Optics 2021

Washington, DC United States
1–4 November 2021
ISBN: 978-1-55752-308-2

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Photonic Quantum Technologies I (FM1C)

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M. Pittaluga, M. Minder, M. Lucamarini, M. Sanzaro, R. I. Woodward, M. Li, Z. Yuan, and A. J. Shields, "Experimental repeater-like quantum communications over 600 km of optical fibre with wavelength-multiplexed phase stabilisation," in Frontiers in Optics + Laser Science 2021, C. Mazzali, T. (T.-C.) Poon, R. Averitt, and R. Kaindl, eds., Technical Digest Series (Optica Publishing Group, 2021), paper FM1C.4.

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Abstract

We introduce a novel phase stabilisation scheme for phase-sensitive single-photon applications. By applying it to the Twin-Field Quantum Key Distribution protocol, we establish a repeater-like quantum communication over 600 km of optical fibre.

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