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Polymer Optical Fibers for Sensing Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Optical Sensors".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 4499

Special Issue Editors

Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Zhuhai 519087, China
Interests: polymer optical fiber; multifunctional POF; biomedical application; microwave photonics; brain–computer interface
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
Interests: polymer optical fiber; optical fiber sensing

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Guest Editor
CICECO-Aveiro Institute of Materials, Physics Department, University of Aveiro, Aveiro, Portugal
Interests: photonics; optics for aerospace; optical sensors; optical devices; machine learning for optics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymer optical fibers (POFs) have recently been proved as very attractive fibers due to their high sensitivity to the external environment, their biocompatibility, and their easy handling, amongst other advantages. Sensing has been identified as a field with an increasing number of potential applications. The purpose of this Special Issue is to collect advances in fundamental research, technological development, and innovative applications of polymer optical fibers for sensing applications. 

It is our pleasure to invite you to submit original research papers, short communications, or state-of-the-art reviews within the scope of this Special Issue. Contributions can range from the fundamental properties of polymer fibers to their fabrication and characterization, as well as innovations in processing technologies for the development of applications.

Topics include, but are not limited to, theoretical and experimental original work on the following:

  • New polymer fibers: materials, special structures, etc.
  • Polymer optical fiber transmission simulation.
  • Polymer optical fiber networks: indoor, vehicular, etc.
  • POF transceivers.
  • Multiplexing/demultiplexing techniques in POF networks.
  • Physical, chemical, mechanical, electromagnetic, biological and medical sensors.
  • Sensors based on colorimetry, evanescent wave, and infrared spectroscopies.
  • Plasmonic-based sensors.
  • Interferometers and polarimetric configurations (as FP cavities, MMI, Michelson, Mach–Zehnder, Sagnac, etc.).
  • Micro- and nanofabrication, smart structures and sensors including gratings (FBG, LPFG), tapers, and etched configurations.
  • Functionalization methods and thin-film coatings (e.g., metals, oxides, and graphene).
  • Sensor networking and distributed sensing.
  • New concepts for photonic sensing.

Applications including, but not limited to: aquaculture, mechanical, civil, pharmaceutical, oil and gas industries, human and animal health monitoring, environment monitoring, harsh environments, food processing and monitoring, and medical instrumentation.

 

Dr. Rui Min
Dr. Chuanxin Teng
Dr. Carlos Marques
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • polymer optical fiber
  • sensing application
  • plasmonic
  • multifunctional POF
  • biomedical application

Published Papers (2 papers)

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Research

14 pages, 6022 KiB  
Article
Temperature and Humidity Sensitivity of Polymer Optical Fibre Sensors Tuned by Pre-Strain
by Andreas Pospori, Andreas Ioannou and Kyriacos Kalli
Sensors 2022, 22(19), 7233; https://doi.org/10.3390/s22197233 - 23 Sep 2022
Cited by 12 | Viewed by 1647
Abstract
Polymer optical fibre Bragg grating (POFBG) sensors are of high interest due to their enhanced fracture toughness, flexibility in bending, and sensitivity in stress and pressure monitoring applications compared to silica-based sensors. The POFBG sensors can also detect humidity due to the hydrophilic [...] Read more.
Polymer optical fibre Bragg grating (POFBG) sensors are of high interest due to their enhanced fracture toughness, flexibility in bending, and sensitivity in stress and pressure monitoring applications compared to silica-based sensors. The POFBG sensors can also detect humidity due to the hydrophilic nature of some polymers. However, multi-parameter sensing can cause cross-sensitivity issues in certain applications if the temperature and humidity measurements are not adequately compensated. In this work, we demonstrate the possibility of selectively tuning sensors’ temperature and humidity sensitivities to the desired level by applying a certain amount of fibre pre-strain. The temperature sensitivity of POFBG sensors fabricated in perfluoropolymers (CYTOP) can be selectively tuned from positive to negative values, having the option for insensitivity in specific temperature ranges depending on the amount of the applied pre-strain. The humidity sensitivity of sensors can also be changed from positive values to insensitivity. The importance of thermal annealing treatment of POFBG sensors for improved repeatability in temperature measurements is also reported. An array of 4 multiplexed POFBGs was fabricated, and each sensor was pre-strained accordingly to demonstrate the possibility of having targeted temperature and humidity sensitivities along the same fibre. Full article
(This article belongs to the Special Issue Polymer Optical Fibers for Sensing Applications)
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11 pages, 9936 KiB  
Communication
Side-Polish Plastic Optical Fiber Based SPR Sensor for Refractive Index and Liquid-Level Sensing
by Chuanxin Teng, Shiyuan Ying, Rui Min, Shijie Deng, Hongchang Deng, Ming Chen, Xiaoxue Chu, Libo Yuan, Yu Cheng and Minmin Xue
Sensors 2022, 22(16), 6241; https://doi.org/10.3390/s22166241 - 19 Aug 2022
Cited by 8 | Viewed by 2126
Abstract
In this work, a simple side-polish plastic optical fiber (POF)-based surface plasmon resonance (SPR) sensor is proposed and demonstrated for simultaneous measurement of refractive index (RI) and liquid level. The effects of side-polish depths on the sensing performance were studied. The experimental results [...] Read more.
In this work, a simple side-polish plastic optical fiber (POF)-based surface plasmon resonance (SPR) sensor is proposed and demonstrated for simultaneous measurement of refractive index (RI) and liquid level. The effects of side-polish depths on the sensing performance were studied. The experimental results show that the SPR peak wavelength will be changed as the RI changes, and the SPR peak intensity will be changed with the liquid level variation. By monitoring the changes in peak wavelength and intensity, the RI and liquid level can be detected simultaneously. Experimental results show that an RI sensitivity of 2008.58 nm/RIU can be reached at an RI of 1.39. This sensor has the advantages of simple structure and low cost, which has a good prospect in the field of biochemical sensing. Full article
(This article belongs to the Special Issue Polymer Optical Fibers for Sensing Applications)
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