φ-OTDR for Low-Noise Distributed Seismic Sensing

L. Rossi; L. K. Cheng; W. De Jong; R. Jansen; G. Bolognini

doi:10.1364/CLEO_AT.2023.AM3K.7

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper AM3K.7
•https://doi.org/10.1364/CLEO_AT.2023.AM3K.7

φ-OTDR for Low-Noise Distributed Seismic Sensing

L. Rossi, L. K. Cheng, W. De Jong, R. Jansen, and G. Bolognini

CLEO: Applications and Technology 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Distributed Sensing (AM3K)

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L. Rossi, L. K. Cheng, W. De Jong, R. Jansen, and G. Bolognini, "φ-OTDR for Low-Noise Distributed Seismic Sensing," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper AM3K.7.

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Abstract

A low-noise φ-OTDR system employing 2-stage preamplification is employed as a distributed acoustic sensor in a survey well in Cottessen, reaching strain noise levels below 1 n for a 10 kHz sampling rate.

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