Designing Noise-Robust Quantum Networks Coexisting in the Classical Fiber Infrastructure
| Autor: | Thomas, Jordan M., Kanter, Gregory S., Kumar, Prem |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Opt. Express 31, 43035-43047 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OE.504625 |
| Popis: | The scalability of quantum networking will benefit from quantum and classical communications coexisting in shared fibers, the main challenge being spontaneous Raman scattering noise. We investigate the coexistence of multi-channel O-band quantum and C-band classical communications. We characterize multiple narrowband entangled photon pair channels across 1282 nm-1318 nm co-propagating over 48 km installed standard fiber with record C-band power (>18 dBm) and demonstrate that some quantum-classical wavelength combinations significantly outperform others. We analyze the Raman noise spectrum, optimal wavelength engineering, multi-photon pair emission in entangled photon-classical coexistence, and evaluate the implications for future quantum applications. Comment: Added a reference, corrected affiliations, paper formatting, and fixed a typo in section 2B |
| Databáze: | arXiv |
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