Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses

David Sanahuja, Javier Preciado, Jesús Subías, Carlos Heras, Lucía Hidalgo, Iñigo Salinas, Pascual Sevillano, Juan Martínez, Asier Villafranca

2019

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).

Paper Citation

in Harvard Style

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 - Volume 1: PHOTOPTICS, ISBN 978-989-758-364-3, pages 196-200. DOI: 10.5220/0007386401960200

in Bibtex Style

@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 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 - Volume 1: PHOTOPTICS,},
year={2019},
pages={196-200},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007386401960200},
isbn={978-989-758-364-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: 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
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