Noise characterization for co-propagation of classical and CV-QKD signals over fiber and free-space link

2024/04/25 by Frazão, João dos Reis, van Vliet, Vincent, Gümüş, Kadir +5
#FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2406.06540

Abstract

Real-time CV-QKD receiver achieves peak 2.9 Mbit/s secret-key-rates over 12.8 km of fiber, while co-propagating 15 classical channels, separated 1 nm from the quantum signal. Performance degrades at higher launch powers due to crosstalk.

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