Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation

Multimode interferometers based on the single-mode-no-core-single-mode fiber (SNCS) structure have been widely investigated as functional devices and sensors. However, the theoretical support for the sensing mechanism is still imperfect, especially for the cladding refractive index response. In this...

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Detalles Bibliográficos
Autores principales: Xu, Wei, Shi, Jia, Yang, Xianchao, Xu, Degang, Rong, Feng, Zhao, Junfa, Yao, Jianquan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677110/
https://www.ncbi.nlm.nih.gov/pubmed/28961174
http://dx.doi.org/10.3390/s17102240
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author Xu, Wei
Shi, Jia
Yang, Xianchao
Xu, Degang
Rong, Feng
Zhao, Junfa
Yao, Jianquan
author_facet Xu, Wei
Shi, Jia
Yang, Xianchao
Xu, Degang
Rong, Feng
Zhao, Junfa
Yao, Jianquan
author_sort Xu, Wei
collection PubMed
description Multimode interferometers based on the single-mode-no-core-single-mode fiber (SNCS) structure have been widely investigated as functional devices and sensors. However, the theoretical support for the sensing mechanism is still imperfect, especially for the cladding refractive index response. In this paper, a modified model of no-core fiber (NCF) based on far from cut-off approximation is proposed to investigate the spectrum characteristic and sensing mechanism of the SNCS structure. Guided-mode propagation analysis (MPA) is used to analyze the self-image effect and spectrum response to the cladding refractive index and temperature. Verified by experiments, the performance of the SNCS structure can be estimated specifically and easily by the proposed method.
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spelling pubmed-56771102017-11-17 Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation Xu, Wei Shi, Jia Yang, Xianchao Xu, Degang Rong, Feng Zhao, Junfa Yao, Jianquan Sensors (Basel) Article Multimode interferometers based on the single-mode-no-core-single-mode fiber (SNCS) structure have been widely investigated as functional devices and sensors. However, the theoretical support for the sensing mechanism is still imperfect, especially for the cladding refractive index response. In this paper, a modified model of no-core fiber (NCF) based on far from cut-off approximation is proposed to investigate the spectrum characteristic and sensing mechanism of the SNCS structure. Guided-mode propagation analysis (MPA) is used to analyze the self-image effect and spectrum response to the cladding refractive index and temperature. Verified by experiments, the performance of the SNCS structure can be estimated specifically and easily by the proposed method. MDPI 2017-09-29 /pmc/articles/PMC5677110/ /pubmed/28961174 http://dx.doi.org/10.3390/s17102240 Text en © 2017 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 Article
Xu, Wei
Shi, Jia
Yang, Xianchao
Xu, Degang
Rong, Feng
Zhao, Junfa
Yao, Jianquan
Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title_full Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title_fullStr Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title_full_unstemmed Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title_short Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
title_sort improved numerical calculation of the single-mode-no-core-single-mode fiber structure using the fields far from cutoff approximation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677110/
https://www.ncbi.nlm.nih.gov/pubmed/28961174
http://dx.doi.org/10.3390/s17102240
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