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arXiv · 2203.17040

Potential impact of CV-QKD integration on classical WDM network capacity

Cédric Ware·Raphaël Aymeric·Chaima Zidi·Mounia Lourdiane
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Abstract

Continuous-variable quantum key distribution (CV-QKD) could allow QKD and classical optical signals physically sharing the same optical fibers in existing networks. However, Raman scattering imposes a limit on the optical power, which in turn impacts the network capacity for classical traffic in presence of CV-QKD. Network-planning simulations indicate that maxing out the CV-QKD capacity in an optical link can adversely impact its classical capacity. Although preliminary, these results show that designing a mixed classical and CV-QKD network will require dedicated planning heuristics and tools that specifically seek a compromise between classical and CV-QKD traffics.

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Cédric Ware, Raphaël Aymeric, Chaima Zidi, Mounia Lourdiane. 2022-03-31. Potential impact of CV-QKD integration on classical WDM network capacity. https://doi.org/10.1109/lpt.2022.3195433

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