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Optical Fiber Communication Conference

Hong Kong Quantum Network with Chip-based QKD System for Cybersecurity

X. P. Wang, H. Yu, X. J. Zhang, L. W. Lu, W. Wang, Y. X. Yan, K. P. Zhong, S. H. Sun, H. Cai, A.P.T. Lau, A. Q. Liu

Published Jan 1, 2026• 0 citations
Publisher

Abstract

We demonstrated a Hong Kong metropolitan field test of a silicon photonic polarization-encoded quantum key distribution (QKD) system, achieving 45.73 kbps secure key rate over 55.41 km (27.7 dB loss) metropolitan fiber networks.
DOI
10.1364/ofc.2026.m2k.5

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