M-OTDR sensing system based on 3D encoded microstructures

In this work, a quasi-distributed sensing scheme named as microstructured OTDR (M-OTDR) by introducing ultra-weak microstructures along the fiber is proposed. Owing to its relative higher reflectivity compared with the backscattered coefficient in fiber and three dimensional (3D) i.e. wavelength/fre...

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Main Authors: Sun, Qizhen, Ai, Fan, Liu, Deming, Cheng, Jianwei, Luo, Hongbo, Peng, Kuan, Luo, Yiyang, Yan, Zhijun, Shum, Perry Ping
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2017
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Online Access:https://hdl.handle.net/10356/83560
http://hdl.handle.net/10220/42661
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-835602020-03-07T13:57:25Z M-OTDR sensing system based on 3D encoded microstructures Sun, Qizhen Ai, Fan Liu, Deming Cheng, Jianwei Luo, Hongbo Peng, Kuan Luo, Yiyang Yan, Zhijun Shum, Perry Ping School of Electrical and Electronic Engineering Optical sensors Fibre optics and optical communications In this work, a quasi-distributed sensing scheme named as microstructured OTDR (M-OTDR) by introducing ultra-weak microstructures along the fiber is proposed. Owing to its relative higher reflectivity compared with the backscattered coefficient in fiber and three dimensional (3D) i.e. wavelength/frequency/time encoded property, the M-OTDR system exhibits the superiorities of high signal to noise ratio (SNR), high spatial resolution of millimeter level and high multiplexing capacity up to several ten thousands theoretically. A proof-of-concept system consisting of 64 sensing units is constructed to demonstrate the feasibility and sensing performance. With the help of the demodulation method based on 3D analysis and spectrum reconstruction of the signal light, quasi-distributed temperature sensing with a spatial resolution of 20 cm as well as a measurement resolution of 0.1 °C is realized. Published version 2017-06-12T09:13:36Z 2019-12-06T15:25:37Z 2017-06-12T09:13:36Z 2019-12-06T15:25:37Z 2017 Journal Article Sun, Q., Ai, F., Liu, D., Cheng, J., Luo, H., Peng, K., et al. (2017). M-OTDR sensing system based on 3D encoded microstructures. Scientific Reports, 7, 41137-. 2045-2322 https://hdl.handle.net/10356/83560 http://hdl.handle.net/10220/42661 10.1038/srep41137 en Scientific Reports © 2017 The Author(s) (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 8 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Optical sensors
Fibre optics and optical communications
spellingShingle Optical sensors
Fibre optics and optical communications
Sun, Qizhen
Ai, Fan
Liu, Deming
Cheng, Jianwei
Luo, Hongbo
Peng, Kuan
Luo, Yiyang
Yan, Zhijun
Shum, Perry Ping
M-OTDR sensing system based on 3D encoded microstructures
description In this work, a quasi-distributed sensing scheme named as microstructured OTDR (M-OTDR) by introducing ultra-weak microstructures along the fiber is proposed. Owing to its relative higher reflectivity compared with the backscattered coefficient in fiber and three dimensional (3D) i.e. wavelength/frequency/time encoded property, the M-OTDR system exhibits the superiorities of high signal to noise ratio (SNR), high spatial resolution of millimeter level and high multiplexing capacity up to several ten thousands theoretically. A proof-of-concept system consisting of 64 sensing units is constructed to demonstrate the feasibility and sensing performance. With the help of the demodulation method based on 3D analysis and spectrum reconstruction of the signal light, quasi-distributed temperature sensing with a spatial resolution of 20 cm as well as a measurement resolution of 0.1 °C is realized.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Sun, Qizhen
Ai, Fan
Liu, Deming
Cheng, Jianwei
Luo, Hongbo
Peng, Kuan
Luo, Yiyang
Yan, Zhijun
Shum, Perry Ping
format Article
author Sun, Qizhen
Ai, Fan
Liu, Deming
Cheng, Jianwei
Luo, Hongbo
Peng, Kuan
Luo, Yiyang
Yan, Zhijun
Shum, Perry Ping
author_sort Sun, Qizhen
title M-OTDR sensing system based on 3D encoded microstructures
title_short M-OTDR sensing system based on 3D encoded microstructures
title_full M-OTDR sensing system based on 3D encoded microstructures
title_fullStr M-OTDR sensing system based on 3D encoded microstructures
title_full_unstemmed M-OTDR sensing system based on 3D encoded microstructures
title_sort m-otdr sensing system based on 3d encoded microstructures
publishDate 2017
url https://hdl.handle.net/10356/83560
http://hdl.handle.net/10220/42661
_version_ 1681047838950162432