Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers

Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is investigated. It is estimated that multiplexing...

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Detalles Bibliográficos
Autores principales: Liu, Li, Gong, Yuan, Wu, Yu, Zhao, Tian, Wu, Hui-Juan, Rao, Yun-Jiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478847/
http://dx.doi.org/10.3390/s120912377
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author Liu, Li
Gong, Yuan
Wu, Yu
Zhao, Tian
Wu, Hui-Juan
Rao, Yun-Jiang
author_facet Liu, Li
Gong, Yuan
Wu, Yu
Zhao, Tian
Wu, Hui-Juan
Rao, Yun-Jiang
author_sort Liu, Li
collection PubMed
description Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is investigated. It is estimated that multiplexing of more than 10 such sensors is possible. In the multiplexing scheme, one of the sensors is used to investigate the refractive index and temperature responses. The fast Fourier transform (FFT) of the combined reflective spectra is analyzed. The intensity of the FFT spectra is linearly related with the refractive index and is not sensitive to the temperature.
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spelling pubmed-34788472012-10-30 Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers Liu, Li Gong, Yuan Wu, Yu Zhao, Tian Wu, Hui-Juan Rao, Yun-Jiang Sensors (Basel) Article Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is investigated. It is estimated that multiplexing of more than 10 such sensors is possible. In the multiplexing scheme, one of the sensors is used to investigate the refractive index and temperature responses. The fast Fourier transform (FFT) of the combined reflective spectra is analyzed. The intensity of the FFT spectra is linearly related with the refractive index and is not sensitive to the temperature. Molecular Diversity Preservation International (MDPI) 2012-09-12 /pmc/articles/PMC3478847/ http://dx.doi.org/10.3390/s120912377 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Liu, Li
Gong, Yuan
Wu, Yu
Zhao, Tian
Wu, Hui-Juan
Rao, Yun-Jiang
Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title_full Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title_fullStr Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title_full_unstemmed Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title_short Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers
title_sort spatial frequency multiplexing of fiber-optic interferometric refractive index sensors based on graded-index multimode fibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3478847/
http://dx.doi.org/10.3390/s120912377
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