Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber

A U-shaped double-side polished plastic optical fiber (POF) is demonstrated as a liquid refractive index (RI) sensor. The refractive index of glycerinum solutions is identified by the intensity detection on the bending and evanescent wave loss change. Heat treatment and mechanical polishing are adop...

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Detalles Bibliográficos
Autores principales: Wang, Shumin, Zhang, Daming, Xu, Yan, Sun, Siwen, Sun, Xiaoqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Letter
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570505/
https://www.ncbi.nlm.nih.gov/pubmed/32937972
http://dx.doi.org/10.3390/s20185253
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author Wang, Shumin
Zhang, Daming
Xu, Yan
Sun, Siwen
Sun, Xiaoqiang
author_facet Wang, Shumin
Zhang, Daming
Xu, Yan
Sun, Siwen
Sun, Xiaoqiang
author_sort Wang, Shumin
collection PubMed
description A U-shaped double-side polished plastic optical fiber (POF) is demonstrated as a liquid refractive index (RI) sensor. The refractive index of glycerinum solutions is identified by the intensity detection on the bending and evanescent wave loss change. Heat treatment and mechanical polishing are adopted to form the symmetrical side-polished POF probe. The processing parameters are experimentally optimized on the power transmittance. The sensitivity of 1541%/RIU (Refractive Index Unit) can be obtained with a resolution of 5.35 × 10(−4) in the scope of 1.33–1.39. The favorable temperature characteristic is proved to offer stable RI sensing from 20 to 50 °C. This simple POF sensor has potentials in low-cost visible light intensity RI detection.
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spelling pubmed-75705052020-10-28 Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber Wang, Shumin Zhang, Daming Xu, Yan Sun, Siwen Sun, Xiaoqiang Sensors (Basel) Letter A U-shaped double-side polished plastic optical fiber (POF) is demonstrated as a liquid refractive index (RI) sensor. The refractive index of glycerinum solutions is identified by the intensity detection on the bending and evanescent wave loss change. Heat treatment and mechanical polishing are adopted to form the symmetrical side-polished POF probe. The processing parameters are experimentally optimized on the power transmittance. The sensitivity of 1541%/RIU (Refractive Index Unit) can be obtained with a resolution of 5.35 × 10(−4) in the scope of 1.33–1.39. The favorable temperature characteristic is proved to offer stable RI sensing from 20 to 50 °C. This simple POF sensor has potentials in low-cost visible light intensity RI detection. MDPI 2020-09-14 /pmc/articles/PMC7570505/ /pubmed/32937972 http://dx.doi.org/10.3390/s20185253 Text en © 2020 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Letter
Wang, Shumin
Zhang, Daming
Xu, Yan
Sun, Siwen
Sun, Xiaoqiang
Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title_full Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title_fullStr Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title_full_unstemmed Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title_short Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber
title_sort refractive index sensor based on double side-polished u-shaped plastic optical fiber
topic Letter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570505/
https://www.ncbi.nlm.nih.gov/pubmed/32937972
http://dx.doi.org/10.3390/s20185253
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AT sunsiwen refractiveindexsensorbasedondoublesidepolishedushapedplasticopticalfiber
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