Continuous-Variable Quantum Key Distribution Over 60 km Optical Fiber With Real Local Oscillator

Adnan A.E. Hajomer; Hossein Mani; Nitin Jain; Hou-Man Chin; Ulrik L. Andersen; Tobias Gehring

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper Th1G.5

Continuous-Variable Quantum Key Distribution Over 60 km Optical Fiber With Real Local Oscillator

Adnan A.E. Hajomer, Hossein Mani, Nitin Jain, Hou-Man Chin, Ulrik L. Andersen, and Tobias Gehring

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Quantum Communication (Th1G)

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A. A. E. Hajomer, H. Mani, N. Jain, H. Chin, U. L. Andersen, and T. Gehring, "Continuous-Variable Quantum Key Distribution Over 60 km Optical Fiber With Real Local Oscillator," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Th1G.5.

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Abstract

We report the first continuous-variable quantum key distribution experiment that enables the generation of secure key over a 60 km fiber channel with locally generated local oscillator. This is achieved by controlling the excess noise using machine learning for phase noise compensation while operating the system at a low modulation variance.

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