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

International Conference on Photonics, Optics and Laser Technology Pub Date : 2019-02-25 DOI:10.5220/0007386401960200

D. Sanahuja, J. Preciado, J. Subías, C. Heras, Lucía Hidalgo, Iñigo Salinas, P. Sevillano, J. J. Martínez, A. Villafranca

{"title":"Long-Range (>100km) Distributed Vibration Sensor based on Φ-OTDR Technique with Spread Amplification and Detection of Probe Pulses","authors":"D. Sanahuja, J. Preciado, J. Subías, C. Heras, Lucía Hidalgo, Iñigo Salinas, P. Sevillano, J. J. Martínez, A. Villafranca","doi":"10.5220/0007386401960200","DOIUrl":null,"url":null,"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 (Aragon Photonics Labs).","PeriodicalId":294758,"journal":{"name":"International Conference on Photonics, Optics and Laser Technology","volume":"101 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Photonics, Optics and Laser Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5220/0007386401960200","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

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 (Aragon Photonics Labs).

查看原文本刊更多论文

基于Φ-OTDR扩频放大探测脉冲技术的远程(>100km)分布式振动传感器

本文给出了一组基于相干光时域反射(Φ-OTDR)技术的远程(>100km)分布式振动传感器(DAS)的实验结果，该传感器利用探针脉冲的分布式放大和后向散射迹的检测，证明了具有高灵敏度实现远程距离的良好能力。在这种情况下，沿着传感光纤放置了光放大器，每个放大器后面都有一个检测级。在传感纤维的每个跨度中检测到的一些痕迹的结果，以及在传感纤维的每个部分的末端由振动产生的刺激的一些测量结果，显示在这里。这项工作是由萨拉戈萨大学和阿拉贡光子学实验室(APL)合作开展的SACOH项目(通过相干瑞利后向散射进行远程分布式振动传感)的框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Conference on Photonics, Optics and Laser Technology

自引率

0.00%

发文量