120 km Long-distance Distributed Optical Fiber Vibration Sensing System

JIN Shen; SONG Wei; YANG Chun; YANG Tong-you; LI Shu-hua

doi:10.13756/j.gtxyj.2021.03.005

您当前的位置：

首页 >

文章列表页 >

120 km Long-distance Distributed Optical Fiber Vibration Sensing System

- 120 km Long-distance Distributed Optical Fiber Vibration Sensing System
- Study on Optical Communications Issue 3, Pages: 20-24(2021)
- 作者机构：
  
  1.国网冀北电力有限公司　信息通信分公司，北京　100054
  2.武汉康普常青软件技术股份有限公司，武汉　430027
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.03.005
  CLC： TN914
- Published：10 June 2021，
  
  Received：17 June 2020，
扫描看全文
JIN Shen, SONG Wei, YANG Chun, et al. 120 km Long-distance Distributed Optical Fiber Vibration Sensing System. [J]. Study on Optical Communications (3):20-24(2021)
DOI：

JIN Shen, SONG Wei, YANG Chun, et al. 120 km Long-distance Distributed Optical Fiber Vibration Sensing System. [J]. Study on Optical Communications (3):20-24(2021) DOI： 10.13756/j.gtxyj.2021.03.005.

摘要

针对输电线路等场景的超长距离监测应用问题，文章在分布式光纤相位敏感光时域反射仪的基础上，采用拉曼放大和外差检测的方式，设计了一种光电信号分段探测和采集的光纤传感系统。该系统依据光纤长度将光纤分为两段进行信号采集和处理，针对不同强度信号适配相应的信号处理和采集参数，解决了超长距离监测系统的动态范围不足和信噪比差的问题。经试验和分析，最终实现了超过124 km的单端超长距离分布式光纤监测系统，系统末端信噪比>10.5 dB。

Abstract

Aiming at the application of ultra-long-distance monitoring in scenarios such as power transmission lines

this article uses Raman amplification and heterodyne detection based on a distributed optical fiber phase sensitive Optical Time Domain Reflectometer (OTDR) to design a photoelectric signal segmented detection collected optical fiber sensing system. According to the length of the optical fiber

the optical fiber is divided into two sections for signal processing and acquisition

and the corresponding signal processing and acquisition parameters are adapted to different strength signals to solve the problems of insufficient dynamic range and poor signal-to-noise ratio of the ultra-long-distance monitoring system. After testing and analysis

a single-end ultra-long-distance distributed optical fiber monitoring system with a distance of more than 124 km is realized. The signal-to-noise ratio at the end of the system is larger than 10.5 dB.

关键词

分布式拉曼放大瑞利散射分段放大

Keywords

distributedRaman amplificationRayleigh scatteringsegmented amplification

references

汪洋, 周波达, 林晓波, 等.基于分布式光纤振动传感的海缆锚害故障检测[J].光通信研究, 2018(2): 40-43.

吴俊.Φ-OTDR分布式光纤振动传感系统的信号检测识别关键技术研究[D].合肥: 安徽大学, 2019.

袁晓月, 谭中伟.基于φ-OTDR的分布式光纤传感技术的现状与发展[J].光通信技术, 2018, 42(2): 23-26.

Martins H F, Martin-Lopez , Corredera P, et al. Modulation Instability-Induced Fading in Phase-sensitive Optical Time-Domain Reflectometry[J]. Optics Letters, 2013, 38(6): 872-874.

Choi K N, Taylor H F. Spectrally Stable Er-Fiber Laser for Application in Phase-Sensitive Optical Time-Domain Reflectometry[J]. Photonics Technology Letters, 2003, 15(3): 386-388.

Rao Y J, Luo J, Ran Z L, et al. Long-Distance Fiber-Optic Φ-OTDR Intrusion Sensing System[C]//The International Society for Optics Engineering. Edinburgh, United Kingdom: IEEE, 2009: 835324.

Wang J, Jia X H, Rao Y J, et al. Phase-Sensitive Optical Time-Domain Reflectometer based on Bi-directional Raman Amplification[J]. Acta Physica Sinica, 2013, 62(4): 044212.

Peng Z P, Rao Y J, Peng F, et al. Long Distance Phase-Sensitive Optical Time-Domain Reflectometer based on Heterodyne Detection and Forward Raman Amplification[J]. Journal of Optoelectronics Laser, 2014, 25(4): 724-729.

张黎.光纤中瑞利散射光的相位解调[D].成都: 电子科技大学, 2016.

赵明君, 崔力民, 侯建明, 等.分布式拉曼光放大系统中噪声的精确分析[J].光通信研究, 2018(5): 25-28, 68.

Gao J, Jiang Z, Zhao Y, et al. Full Distributed Fiber Optical Sensor for Intrusion Detection in Application to Buried Pipelines[J]. Chinese Optics Letters, 2005, 3(11): 633-635.

印新达, 何万晖, 刘水华, 等.分布式拉曼光纤放大器的分析与试验[J].光通信研究, 2001(6): 12-17.

穆立波, 吴悦峰, 姚剑.分布式光纤震动传感系统的多点定位问题研究[J].传感器与微系统, 2010, 29(6): 42-45, 49.

李伟南.由泵浦光引起的掺铒光纤放大器瞬态特性的研究[D].北京: 北京交通大学, 2016.

罗杰, 叶培大, 伍叔坚, 等.长波段掺铒光纤放大器用掺铒光纤的设计考虑[J].光子学报, 2000, 29(12): 1138-1141.

更多指标>

Views

199

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Accurate Analysis of Scattering Noise in Distributed Fiber Raman Amplification Systems based on a Random Model

Design of Rayleigh BOTDA System Combined with Balance Detector

Long-haul Transmission Using Raman Amplification and DBP Algorithm

Optimization of Electro-Optic Modulator for Rayleigh-Brillouin Optical Time-Domain Analysis System

Technologies for high-rate DWDM transmission systems and their recent advances

Related Author

No data

Related Institution

Wuhan National Laboratory for Optoelectronics,HUST

Accelink Technologies Co., Ltd.

Information and Communication Company,State Grid Xinjiang Electric Power Company

Dept.of Electronic and Communication Engineering,North China Electric Power University

Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology

⁰