Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing

We report on a refractive index sensor using a photonic crystal fiber (PCF) interferometer which was realized by fusion splicing a short section of PCF (Blaze Photonics, LMA-10) between two standard single mode fibers. The fully collapsed air holes of the PCF at the spice regions allow the coupling...

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Main Authors: Wang, Jian-Neng, Tang, Jaw-Luen
Format: Online
Language:English
Published: Molecular Diversity Preservation International (MDPI) 2012
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3376571/
id pubmed-3376571
recordtype oai_dc
spelling pubmed-33765712012-06-25 Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing Wang, Jian-Neng Tang, Jaw-Luen Article We report on a refractive index sensor using a photonic crystal fiber (PCF) interferometer which was realized by fusion splicing a short section of PCF (Blaze Photonics, LMA-10) between two standard single mode fibers. The fully collapsed air holes of the PCF at the spice regions allow the coupling of PCF core and cladding modes that makes a Mach-Zehnder interferometer. The transmission spectrum exhibits sinusoidal interference pattern which shifts differently when the cladding/core surface of the PCF is immersed with different RI of the surrounding medium. Experimental results using wavelength-shift interrogation for sensing different concentrations of sucrose solution show that a resolution of 1.62 × 10−4–8.88 × 10−4 RIU or 1.02 × 10−4–9.04 × 10−4 RIU (sensing length for 3.50 or 5.00 cm, respectively) was achieved for refractive indices in the range of 1.333 to 1.422, suggesting that the PCF interferometer are attractive for chemical, biological, biochemical sensing with aqueous solutions, as well as for civil engineering and environmental monitoring applications. Molecular Diversity Preservation International (MDPI) 2012-03-02 /pmc/articles/PMC3376571/ /pubmed/22736988 http://dx.doi.org/10.3390/s120302983 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/).
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Wang, Jian-Neng
Tang, Jaw-Luen
spellingShingle Wang, Jian-Neng
Tang, Jaw-Luen
Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
author_facet Wang, Jian-Neng
Tang, Jaw-Luen
author_sort Wang, Jian-Neng
title Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
title_short Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
title_full Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
title_fullStr Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
title_full_unstemmed Photonic Crystal Fiber Mach-Zehnder Interferometer for Refractive Index Sensing
title_sort photonic crystal fiber mach-zehnder interferometer for refractive index sensing
description We report on a refractive index sensor using a photonic crystal fiber (PCF) interferometer which was realized by fusion splicing a short section of PCF (Blaze Photonics, LMA-10) between two standard single mode fibers. The fully collapsed air holes of the PCF at the spice regions allow the coupling of PCF core and cladding modes that makes a Mach-Zehnder interferometer. The transmission spectrum exhibits sinusoidal interference pattern which shifts differently when the cladding/core surface of the PCF is immersed with different RI of the surrounding medium. Experimental results using wavelength-shift interrogation for sensing different concentrations of sucrose solution show that a resolution of 1.62 × 10−4–8.88 × 10−4 RIU or 1.02 × 10−4–9.04 × 10−4 RIU (sensing length for 3.50 or 5.00 cm, respectively) was achieved for refractive indices in the range of 1.333 to 1.422, suggesting that the PCF interferometer are attractive for chemical, biological, biochemical sensing with aqueous solutions, as well as for civil engineering and environmental monitoring applications.
publisher Molecular Diversity Preservation International (MDPI)
publishDate 2012
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3376571/
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