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Authors: David Sanahuja 1 ; Javier Preciado 2 ; Jesús Subías 1 ; Carlos Heras 3 ; Lucía Hidalgo 3 ; Iñigo Salinas 3 ; Pascual Sevillano 4 ; Juan José Martínez 4 and Asier Villafranca 4

Affiliations: 1 Departamento de Física Aplicada, Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza and Spain ; 2 Departamento de Ingeniería Electrónica y Comunicaciones, EINA, Universidad de Zaragoza, María de Luna 1, 50018 Zaragoza, Spain, Aragón Photonics Labs (APL), Prado 5, 50009 Zaragoza and Spain ; 3 Departamento de Ingeniería Electrónica y Comunicaciones, EINA, Universidad de Zaragoza, María de Luna 1, 50018 Zaragoza and Spain ; 4 Aragón Photonics Labs (APL), Prado 5, 50009 Zaragoza and Spain

Keyword(s): Optical Fiber, Fiber-Optic Sensor, Distributed Sensor, Rayleigh Scattering, Coherent Optical Time Domain Reflectometry (Φ-OTDR), Long-Range Distributed Sensing, Modulation Instability, Fading.

Abstract: This paper presents a set of results to demonstrate a long-range (>100km) distributed vibration sensor (DAS) based on the Coherent Optical Time Domain Reflectometry (Φ-OTDR) technique using distributed amplification of the probe pulses and detection of the backscattered traces, which demonstrates great capability to achieve long-range distances with great sensitivity. In this case, optical amplifiers have been placed along the sensing optical fiber, each one followed by a detection stage. Results for some traces detected in each of the spans along the sensing fiber, and some measurements of stimuli produced by a vibration at the end of each of the sections of the sensing fiber, are showed here. This work, framed in the project SACOH (Long-range Distributed Vibration Sensing by Coherent Rayleigh Backscattering), has been carried out in collaboration between the University of Zaragoza and the company APL (Aragón Photonics Labs).

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Paper citation in several formats:
Sanahuja, D.; Preciado, J.; Subías, J.; Heras, C.; Hidalgo, L.; Salinas, I.; Sevillano, P.; Martínez, J. and Villafranca, A. (2019). Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses. In Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-364-3; ISSN 2184-4364, SciTePress, pages 196-200. DOI: 10.5220/0007386401960200

@conference{photoptics19,
author={David Sanahuja. and Javier Preciado. and Jesús Subías. and Carlos Heras. and Lucía Hidalgo. and Iñigo Salinas. and Pascual Sevillano. and Juan José Martínez. and Asier Villafranca.},
title={Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses},
booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2019},
pages={196-200},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007386401960200},
isbn={978-989-758-364-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses
SN - 978-989-758-364-3
IS - 2184-4364
AU - Sanahuja, D.
AU - Preciado, J.
AU - Subías, J.
AU - Heras, C.
AU - Hidalgo, L.
AU - Salinas, I.
AU - Sevillano, P.
AU - Martínez, J.
AU - Villafranca, A.
PY - 2019
SP - 196
EP - 200
DO - 10.5220/0007386401960200
PB - SciTePress

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