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Conferences > CLEO_SI > 2021 > SM1E > SM1E.5

Kilometer-range distributed acoustic sensing by time- expanded phase-sensitive time-domain reflectometry

Miguel Soriano-Amat, Hugo F. Martins, Luis Costa, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, María R. Fernández-Ruiz, and Vicente Durán

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Abstract

We demonstrate acoustic sensing over 1 km with 4-cm resolution, using megahertz detection bandwidth and a sampling rate of 40 Hz, by means of two electro-optic frequency combs with very dissimilar line spacing.

© 2021 The Author(s)

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