6 Mb/s Secret Key Rate Transmission over 13.5 km SMF Using PCS-256QAM Super-Channel Continuous Variable Quantum Key Distribution

François Roumestan; Amirhossein Ghazisaeidi; Haik Mardoyan; Jérémie Renaudier; Eleni Diamanti; Philippe Grangier

doi:10.1364/OFC.2022.Tu3I.4

Optical Fiber Communication Conference (OFC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper Tu3I.4
•https://doi.org/10.1364/OFC.2022.Tu3I.4

6 Mb/s Secret Key Rate Transmission over 13.5 km SMF Using PCS-256QAM Super-Channel Continuous Variable Quantum Key Distribution

François Roumestan, Amirhossein Ghazisaeidi, Haik Mardoyan, Jérémie Renaudier, Eleni Diamanti, and Philippe Grangier

Optical Fiber Communication Conference 2022

San Diego, California United States
6–10 March 2022
ISBN: 978-1-55752-466-9

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Quantum Communications (Tu3I)

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F. Roumestan, A. Ghazisaeidi, H. Mardoyan, J. Renaudier, E. Diamanti, and P. Grangier, "6 Mb/s Secret Key Rate Transmission over 13.5 km SMF Using PCS-256QAM Super-Channel Continuous Variable Quantum Key Distribution," in Optical Fiber Communication Conference (OFC) 2022, S. Matsuo, D. Plant, J. Shan Wey, C. Fludger, R. Ryf, and D. Simeonidou, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Tu3I.4.

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Abstract

We experimentally validate the feasibility of wavelength-division multiplexing for continuous-variable quantum-key-distribution, transmitting four 600 MBaud probabilistically-shaped 256-QAM signals with 4 GHz spacing, achieving total 254.6 Mb/s average secret key rate.

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