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State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications

An optical fiber coupler is a simple and fundamental component for fiber optic technologies that works by reducing the fiber diameter to hundred nanometers or several micrometers. The microfiber coupler (MFC) has regained interest in optical fiber sensing in recent years. The subwavelength diameter...

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Detalles Bibliográficos
Autores principales: Dai, Maolin, Chen, Zhenmin, Zhao, Yuanfang, Aruna Gandhi, Manthangal Sivanesan, Li, Qian, Fu, Hongyan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7698761/
https://www.ncbi.nlm.nih.gov/pubmed/33218037
http://dx.doi.org/10.3390/bios10110179
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author Dai, Maolin
Chen, Zhenmin
Zhao, Yuanfang
Aruna Gandhi, Manthangal Sivanesan
Li, Qian
Fu, Hongyan
author_facet Dai, Maolin
Chen, Zhenmin
Zhao, Yuanfang
Aruna Gandhi, Manthangal Sivanesan
Li, Qian
Fu, Hongyan
author_sort Dai, Maolin
collection PubMed
description An optical fiber coupler is a simple and fundamental component for fiber optic technologies that works by reducing the fiber diameter to hundred nanometers or several micrometers. The microfiber coupler (MFC) has regained interest in optical fiber sensing in recent years. The subwavelength diameter rationales vast refractive index (RI) contrast between microfiber “core” and surrounding “cladding”, a large portion of energy transmits in the form of an evanescent wave over the fiber surface that determines the MFC ultrasensitive to local environmental changes. Consequently, MFC has the potential to develop as a sensor. With the merits of easy fabrication, low cost and compact size, numerous researches have been carried out on different microfiber coupler configurations for various sensing applications, such as refractive index (RI), temperature, humidity, magnetic field, gas, biomolecule, and so on. In this manuscript, the fabrication and operation principle of an MFC are elaborated and recent advances of MFC-based sensors for scientific and technological applications are comprehensively reviewed.
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spelling pubmed-76987612020-11-29 State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications Dai, Maolin Chen, Zhenmin Zhao, Yuanfang Aruna Gandhi, Manthangal Sivanesan Li, Qian Fu, Hongyan Biosensors (Basel) Review An optical fiber coupler is a simple and fundamental component for fiber optic technologies that works by reducing the fiber diameter to hundred nanometers or several micrometers. The microfiber coupler (MFC) has regained interest in optical fiber sensing in recent years. The subwavelength diameter rationales vast refractive index (RI) contrast between microfiber “core” and surrounding “cladding”, a large portion of energy transmits in the form of an evanescent wave over the fiber surface that determines the MFC ultrasensitive to local environmental changes. Consequently, MFC has the potential to develop as a sensor. With the merits of easy fabrication, low cost and compact size, numerous researches have been carried out on different microfiber coupler configurations for various sensing applications, such as refractive index (RI), temperature, humidity, magnetic field, gas, biomolecule, and so on. In this manuscript, the fabrication and operation principle of an MFC are elaborated and recent advances of MFC-based sensors for scientific and technological applications are comprehensively reviewed. MDPI 2020-11-18 /pmc/articles/PMC7698761/ /pubmed/33218037 http://dx.doi.org/10.3390/bios10110179 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 Review
Dai, Maolin
Chen, Zhenmin
Zhao, Yuanfang
Aruna Gandhi, Manthangal Sivanesan
Li, Qian
Fu, Hongyan
State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title_full State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title_fullStr State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title_full_unstemmed State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title_short State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
title_sort state-of-the-art optical microfiber coupler sensors for physical and biochemical sensing applications
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7698761/
https://www.ncbi.nlm.nih.gov/pubmed/33218037
http://dx.doi.org/10.3390/bios10110179
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