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Nationwide Entanglement Distribution with Silicon Nanophotonic Chip
Conference proceeding

Nationwide Entanglement Distribution with Silicon Nanophotonic Chip

Jinyi Du, Xingjian Zhang, En Teng Lim, George F.R. Chen, Hongwei Gao, Dawn T. H. Tan, Alexander Ling, IEEE and Fengrong George Chen
2025 Optical Fiber Communications Conference and Exhibition (OFC), pp.1-3
30/03/2025
DOI: https://doi.org/10.1364/OFC.2025.M4E.1

Abstract

Crystals Nanophotonics Optical fiber networks Optical fibers Optical losses Propagation losses Quantum networks Satellites Silicon
We developed a silicon chip capable of producing and delivering a detected rate of 460,000 pairs of entangled photons with a fidelity of 97.90(3)% fidelity. The entangled photons were transmitted over 155 km of fiber deployed across Singapore (66 dB loss), demonstrating a major advance in the capability of silicon nanophotonics for powering future quantum networks.

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