Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings

We demonstrate a refractive index sensor based on a long period grating (LPG) inscribed in a special photosensitive microfiber with double-clad profile. The fiber is tapered gradually enough to ensure the adiabaticity of the fiber taper. In other words, the resulting insertion loss is sufficiently s...

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Detalles Bibliográficos
Autores principales: Ji, Wen Bin, Tjin, Swee Chuan, Lin, Bo, Ng, Choong Leng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3859108/
https://www.ncbi.nlm.nih.gov/pubmed/24141267
http://dx.doi.org/10.3390/s131014055
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author Ji, Wen Bin
Tjin, Swee Chuan
Lin, Bo
Ng, Choong Leng
author_facet Ji, Wen Bin
Tjin, Swee Chuan
Lin, Bo
Ng, Choong Leng
author_sort Ji, Wen Bin
collection PubMed
description We demonstrate a refractive index sensor based on a long period grating (LPG) inscribed in a special photosensitive microfiber with double-clad profile. The fiber is tapered gradually enough to ensure the adiabaticity of the fiber taper. In other words, the resulting insertion loss is sufficiently small. The boron and germanium co-doped inner cladding makes it suitable for inscribing gratings into its tapered form. The manner of wavelength shift for refractive indices (RIs) differs from conventional LPG, and the refractive index detection limit is 1.67 × 10(−5).
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spelling pubmed-38591082013-12-11 Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings Ji, Wen Bin Tjin, Swee Chuan Lin, Bo Ng, Choong Leng Sensors (Basel) Communication We demonstrate a refractive index sensor based on a long period grating (LPG) inscribed in a special photosensitive microfiber with double-clad profile. The fiber is tapered gradually enough to ensure the adiabaticity of the fiber taper. In other words, the resulting insertion loss is sufficiently small. The boron and germanium co-doped inner cladding makes it suitable for inscribing gratings into its tapered form. The manner of wavelength shift for refractive indices (RIs) differs from conventional LPG, and the refractive index detection limit is 1.67 × 10(−5). Molecular Diversity Preservation International (MDPI) 2013-10-17 /pmc/articles/PMC3859108/ /pubmed/24141267 http://dx.doi.org/10.3390/s131014055 Text en © 2013 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 Communication
Ji, Wen Bin
Tjin, Swee Chuan
Lin, Bo
Ng, Choong Leng
Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title_full Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title_fullStr Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title_full_unstemmed Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title_short Highly Sensitive Refractive Index Sensor Based on Adiabatically Tapered Microfiber Long Period Gratings
title_sort highly sensitive refractive index sensor based on adiabatically tapered microfiber long period gratings
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3859108/
https://www.ncbi.nlm.nih.gov/pubmed/24141267
http://dx.doi.org/10.3390/s131014055
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AT linbo highlysensitiverefractiveindexsensorbasedonadiabaticallytaperedmicrofiberlongperiodgratings
AT ngchoongleng highlysensitiverefractiveindexsensorbasedonadiabaticallytaperedmicrofiberlongperiodgratings

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