Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network

Fiber Bragg Gratings (FBGs) in a sensor network have been widely used for structural health and process monitoring. The number of FBGs with distinct wavelength that can be used in such a sensor network is limited by the bandwidth of the laser used. FBGs, with overlapping spectra cannot be interrogat...

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Main Authors: Sugumar Venkatesan, Manju Mohan, Pandian Chelliah
Format: Article
Language:English
Published: Elsevier 2024-05-01
Series:Results in Optics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666950124000464
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author Sugumar Venkatesan
Manju Mohan
Pandian Chelliah
author_facet Sugumar Venkatesan
Manju Mohan
Pandian Chelliah
author_sort Sugumar Venkatesan
collection DOAJ
description Fiber Bragg Gratings (FBGs) in a sensor network have been widely used for structural health and process monitoring. The number of FBGs with distinct wavelength that can be used in such a sensor network is limited by the bandwidth of the laser used. FBGs, with overlapping spectra cannot be interrogated in a series sensor network since they shadow each other. Methods like time division multiplexing (TDM), code division multiplexing (CDM) have been used to interrogate overlapped FBGs. TDM is limited by the power budget system and CDM is limited by the number of FBGs can be used. We propose a neural network based Spectral Division Multiplexing (SPDM) scheme, to monitor overlapped FBGs in a series fiber sensor network.
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spelling doaj.art-5348c0e569f5495d8c25887794bcdb372024-04-11T04:42:06ZengElsevierResults in Optics2666-95012024-05-0115100649Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor networkSugumar Venkatesan0Manju Mohan1Pandian Chelliah2Photonics Lab, Department of Physics, Ramakrishna Mission Vivekananda College (Affiliated by University of Madras), Mylapore, Chennai 600 004, IndiaCentre for Automation and Robotics (ANRO), School of Mechanical Sciences, Hindustan Institute of Technology and Science, Padur, Chennai 603103, India; School of Engineering and Technology, Aston University, Birmingham B4 7ET, UKPhotonics Lab, Department of Physics, Ramakrishna Mission Vivekananda College (Affiliated by University of Madras), Mylapore, Chennai 600 004, India; Corresponding author.Fiber Bragg Gratings (FBGs) in a sensor network have been widely used for structural health and process monitoring. The number of FBGs with distinct wavelength that can be used in such a sensor network is limited by the bandwidth of the laser used. FBGs, with overlapping spectra cannot be interrogated in a series sensor network since they shadow each other. Methods like time division multiplexing (TDM), code division multiplexing (CDM) have been used to interrogate overlapped FBGs. TDM is limited by the power budget system and CDM is limited by the number of FBGs can be used. We propose a neural network based Spectral Division Multiplexing (SPDM) scheme, to monitor overlapped FBGs in a series fiber sensor network.http://www.sciencedirect.com/science/article/pii/S2666950124000464Fiber Bragg GratingsStructural health monitoringProcess monitoringTime division multiplexingCode division multiplexingPower budget system
spellingShingle Sugumar Venkatesan
Manju Mohan
Pandian Chelliah
Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
Results in Optics
Fiber Bragg Gratings
Structural health monitoring
Process monitoring
Time division multiplexing
Code division multiplexing
Power budget system
title Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
title_full Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
title_fullStr Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
title_full_unstemmed Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
title_short Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network
title_sort temperature measurement of overlapped fiber bragg grating sensors in a series fiber sensor network
topic Fiber Bragg Gratings
Structural health monitoring
Process monitoring
Time division multiplexing
Code division multiplexing
Power budget system
url http://www.sciencedirect.com/science/article/pii/S2666950124000464
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