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Analysis reveals 1 Pb/s capabilities and Rayleigh backscattering impact on transatlantic cables.
The recent progress in low-loss hollow-core fibers allows to speculate on the possibility of building a transatlantic submarine cable that can achieve the goal of 1 Pb/s per direction, leveraging bidirectional transmission, and at the same time drastically increase span length, theoretically to 200km. In this version, we add the analysis of the impact of Rayleigh backscattering.
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Poggiolini et al. (2025) studied this question.
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