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Integrated Photonic QKD Chip for Hong Kong Quantum Network

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 experimentally demonstrated an integrated photonic chip-based polarization-encoded quantum key distribution (QKD) system, achieving a 45.73 kbps secret key rate over 55.41 km (27.7 dB loss) over the Hong Kong Quantum Network.
DOI
10.1364/cleo_at.2026.am2c.4

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