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

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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https://hal.telecom-paris.fr/hal-03748079
Contributor : Cédric Ware Connect in order to contact the contributor
Submitted on : Tuesday, August 9, 2022 - 10:45:25 AM
Last modification on : Tuesday, November 8, 2022 - 4:45:50 PM

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Cédric Ware, Raphael Aymeric, Mounia Lourdiane, Chaima Zidi. Potential impact of CV-QKD integration on classical WDM network capacity. IEEE Photonics Technology Letters, 2022, 34 (18), pp.957-960. ⟨10.1109/LPT.2022.3195433⟩. ⟨hal-03748079⟩

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