Entanglement Distribution over Ultra-Low-Loss Fiber with a Silicon Chip Source
We develop and demonstrate a silicon chip generating 460,000 entangled photon pairs per second with 97.90(3)% fidelity. The photons were transmitted over 155 km of deployed fiber (66 dB loss) and ultra-low-loss fiber spools (0.16 dB/km), achieving extended transmission distances.
Authors
- Xingjian Zhang (ORCID: https://orcid.org/0000-0003-0677-6996)
- Alexander Ling (ORCID: https://orcid.org/0000-0001-5866-1141)
- George F. R. Chen
- Dawn T. H. Tan (ORCID: https://orcid.org/0000-0002-7111-1125)
- Einly Lim (ORCID: https://orcid.org/0000-0003-2037-4213)
- Jinyi Du (ORCID: https://orcid.org/0009-0006-0431-1553)
- Hongwei Gao (ORCID: https://orcid.org/0000-0002-6559-0035)
Institutions
- Agency for Science, Technology and Research (SG)
- Centre for Quantum Technologies (SG)
- Singapore University of Technology and Design (SG)
- National University of Singapore (SG)
- Institute of Materials Research and Engineering (SG)
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1364/quantum.2025.qm3a.6
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 0.00