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arXiv · 2606.21905

Per-Span Microwave Frequency Fiber Interferometry in Subsea Cables for Scalable Deep-Ocean Geophysical Monitoring

Georgios Aias Karydis·Nicolas L. Celli·David Craig·Örn Jónsson·Andrés Arnar Hlynsson·Eoin Kenny·Charis Mesaritakis·Christopher J. Bean·Adonis Bogris
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Abstract

We demonstrate low-cost microwave frequency fibre interferometry for per-span monitoring of a 1,770 km operational subsea cable connecting Ireland and Iceland. Over four months, this approach successfully resolved tidal variations, storms, and teleseismic earthquakes, highlighting its potential for large-scale, cost-effective ocean monitoring.

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Georgios Aias Karydis, Nicolas L. Celli, David Craig, Örn Jónsson, Andrés Arnar Hlynsson, Eoin Kenny, Charis Mesaritakis, Christopher J. Bean, Adonis Bogris. 2026-06-20. Per-Span Microwave Frequency Fiber Interferometry in Subsea Cables for Scalable Deep-Ocean Geophysical Monitoring. https://arxiv.org/abs/2606.21905

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