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Abstract

Summary

In recent years, long-range Distributed Acoustic Sensing (DAS) has raised significant interest notably due to the improvement in long-range sensing capabilities and the ability to use tens or hundreds of kilometres-long telecommunication cables as dense arrays of acoustic sensors. In this study, we describe laboratory experiments that have been designed to investigate long-range DAS capabilities. In particular, we analyze the sensitivity of the noise floor and the detectability of various signals at different locations along the fibre-optic cable for cable lengths varying from 10 to 200 km. These results can provide guidance on the DAS acquisition parameters to use for specific applications and cable setups.

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/content/papers/10.3997/2214-4609.202475018
2024-08-14
2026-02-13
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References

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