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Conferences > OFS > 2022 > Tu1 > Tu1.2

25 Million Sensing Measurements Per Second Using Quasi-Integer Ratio Time-Expanded φOTDR

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

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Abstract

We demonstrate the detection of strain perturbations along a 500 m optical fiber with 2 cm spatial resolution and 1 kHz sampling frequency via quasi-integer-ratio time-expanded φOTDR, requiring less than 100 MHz photodetection bandwidth.

© 2022 The Author(s)

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