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Optical Fibre Based Pressure and Temperature Sensors for Biomedical and Industrial Applications

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

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 16641

Special Issue Editors

Prof. Dr. Gabriel Leen

E-Mail Website
Guest Editor
Optical Fibre Sensor Research Centre (OFSRC), University of Limerick, Limerick, Ireland
Interests: optical fibre based temperature and pressure sensors using Fabry-Perot interferometers and/or Fibre Bragg gratings; biomedical and industrial based applications for optical fibre based temperature and/or pressure sensors; scalable manufacture of optical fibre temperature/pressure sensors; real-time distributed embedded control networks; electronic sensors and microfluidics
Dr. M. Mahmood Ali

E-Mail Website
Guest Editor
Optical Fibre Sensor Research Centre (OFSRC), University of Limerick, Limerick, Ireland
Interests: optical fibre based devices for sensing and communication technologies; optical fibre based probe sensors; optical fibre based multi-parameter sensors in biomedical and industrial applications; Fibre Bragg gratings, long period gratings, and Fabry-Perot interferometer based sensors; planar lightwave devices; electromagnetic wave analysis of optical waveguides; mode converters for space division multiplexing technology; applications of metasurface and metamaterial based devices in optical and microwave regime; signal and image processing

Special Issue Information

Dear Colleagues,

Anyone involved in the research and development of planar lightwave structure or optical fibre based sensors will appreciate the capabilities and opportunities they offer. Of particular interest is the sensing of temperature and pressure, which are measurements fundamental to many applications, including clinical as well as industrial. Using light matter interaction principles, planar optical devices or optical fibre based sensors may offer advantages over conventional electrical based sensor technologies, including: Small form factor; relatively low material cost; immunity to electromagnetic emissions; the ability to operate in single-ended or multipoint sensing modes; the ability to sense remote parameters as fibres can be run many kilometres, if needed, without significant signal degradation; the fact that they do not present a fire or explosion hazard; etc. Whereas conventional electrical sensors modulate electrical properties, such as resistance, voltage, capacitance, inductance, current, phase angle, etc., a fibre optic sensor modulates properties of light, including: Intensity, phase, polarization, or wavelength/colour.

Advances in areas such as: Optical techniques; fibre structures; light sources; optical interrogation systems; signal processing; materials; and a strong application-driven desire for innovation in sensing technology are creating new opportunities for both research and commercial purposes.

Long-standing challenges for optical fibre based temperature and pressure sensors include: Temperature/pressure resolution; measurement range; repeatability/accuracy; robustness; packaging; bio-appropriate embodiment; immunity to environmental/application specific considerations and potential noise sources; cost of interrogation instrumentation and data processing systems; cross-sensitivity; drift; aging; nonlinearity; scalable manufacture; etc.

Original, high-quality contributions which are not currently under review by other journals or conferences are sought.

This Special Issue invites contributions in the following topics (but is not limited to them):

  • Optical fibre based temperature sensors;
  • Optical fibre based pressure sensors;
  • Fibre Bragg gratings (FBG) used for temperature or pressure measurement;
  • Regenerated Fibre Bragg gratings (RFBG) used for temperature or pressure measurement;
  • Fabry-Perot interferometers (FPI) used for temperature or pressure measurement;
  • Photonic crystal fibres (PCF) used for temperature or pressure measurement;
  • Raman/Rayleigh effects for temperature or pressure measurement;
  • Materials and doped/coated fibres for temperature or pressure measurement;
  • Thermo-optical effects in fibre optic based temperature/pressure sensors;
  • Optical fibre based sensors for the combined measurement of temperature and pressure;
  • Simultaneous sensing of pressure and temperature and cross sensitivity issues;
  • Speciality fibres for temperature and pressure sensing in biomedical and industrial applications;
  • Precision and accuracy, longevity, stability, and controllability issues of optical based temperature or pressure sensors;
  • D-shaped fibre sensors for temperature or pressure sensors;
  • Planar lightwave structures for temperature or pressure measurement;
  • Advanced optical signal processing techniques for performance enhancement of temperature and pressure sensors;
  • Nonlinear and linear optical devices for temperature or pressure measurement;
  • Ultra-high and ultra-low optical pressure and temperature sensors;
  • Long period gratings (LPG) used for temperature or pressure measurement;
  • Multipoint temperature and pressure sensing using multiplexing and demultiplexing techniques;
  • Advanced modelling and simulation tools for the analysis of optical based temperature or pressure sensors;
  • Metasurfaces and metamaterial based devices in optical regime for temperature or pressure measurement;
  • Plasmonic effect for temperature or pressure measurement.

Applications of interest include:

  • Biomedical application of optical fibre temperature and/or pressure measurement, e.g., cardiology, urology, ablation, and other medical applications;
  • Industrial applications of optical fibre temperature and/or pressure measurement;
  • Scalable manufacture of optical fibre sensors for temperature and/or pressure measurement;
  • Civil structural health monitoring;
  • Oil and gas industries;
  • Chemical industries;
  • Health monitoring of special purpose international projects, such as CERN;
  • Temperature and pressure measurements in plasma environments.

Prof. Dr. Gabriel Leen
Dr. M. Mahmood Ali
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

  • Fibre optic sensors
  • Optical fibre temperature sensors
  • Optical fibre pressure sensors
  • Fibre Bragg gratings
  • Fabry-Perot interferometer
  • Biomedical
  • Industrial
  • Manufacture
  • Optical sensors
  • Intrinsic Fabry–Perot interferometer
  • Extrinsic Fabry–Perot interferometer
  • Raman, Brillouin, Rayleigh scatterings Specialty fibres
  • Probe sensors
  • Tapered shape fibre sensors
  • U-shape fibre sensors
  • Signal processing
  • Planar lightwave structures
  • Metasurfaces
  • Metamaterials

Published Papers (4 papers)

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Research

10 pages, 4386 KiB  
Article
MEMS-Based Reflective Intensity-Modulated Fiber-Optic Sensor for Pressure Measurements
by Ning Zhou, Pinggang Jia, Jia Liu, Qianyu Ren, Guowen An, Ting Liang and Jijun Xiong
Sensors 2020, 20(8), 2233; https://doi.org/10.3390/s20082233 - 15 Apr 2020
Cited by 14 | Viewed by 4725
Abstract
A reflective intensity-modulated fiber-optic sensor based on microelectromechanical systems (MEMS) for pressure measurements is proposed and experimentally demonstrated. The sensor consists of two multimode optical fibers with a spherical end, a quartz tube with dual holes, a silicon sensitive diaphragm, and a high [...] Read more.
A reflective intensity-modulated fiber-optic sensor based on microelectromechanical systems (MEMS) for pressure measurements is proposed and experimentally demonstrated. The sensor consists of two multimode optical fibers with a spherical end, a quartz tube with dual holes, a silicon sensitive diaphragm, and a high borosilicate glass substrate (HBGS). The integrated sensor has a high sensitivity due to the MEMS technique and the spherical end of the fiber. The results show that the sensor achieves a pressure sensitivity of approximately 0.139 mV/kPa. The temperature coefficient of the proposed sensor is about 0.87 mV/°C over the range of 20 °C to 150 °C. Furthermore, due to the intensity mechanism, the sensor has a relatively simple demodulation system and can respond to high-frequency pressure in real time. The dynamic response of the sensor was verified in a 1 kHz sinusoidal pressure environment at room temperature. Full article
(This article belongs to the Special Issue Optical Fibre Based Pressure and Temperature Sensors for Biomedical and Industrial Applications)
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14 pages, 1965 KiB  
Article
Enhancing Temperature Sensitivity of the Fabry–Perot Interferometer Sensor with Optimization of the Coating Thickness of Polystyrene
by Tejaswi Tanaji Salunkhe, Dong Jun Lee, Ho Kyung Lee, Hyung Wook Choi, Sang Joon Park and Il Tae Kim
Sensors 2020, 20(3), 794; https://doi.org/10.3390/s20030794 - 31 Jan 2020
Cited by 27 | Viewed by 3414
Abstract
The exploration of novel polymers for temperature sensing with high sensitivity has attracted tremendous research interest. Hence, we report a polystyrene-coated optical fiber temperature sensor with high sensitivity. To enhance the temperature sensitivity, flat, thin, smooth, and air bubble-free polystyrene was coated on [...] Read more.
The exploration of novel polymers for temperature sensing with high sensitivity has attracted tremendous research interest. Hence, we report a polystyrene-coated optical fiber temperature sensor with high sensitivity. To enhance the temperature sensitivity, flat, thin, smooth, and air bubble-free polystyrene was coated on the edge surface of a single-mode optical fiber, where the coating thickness was varied based on the solution concentration. Three thicknesses of the polystyrene layer were obtained as 2.0, 4.1, and 8.0 μm. The temperature sensor with 2.0 μm thick polystyrene exhibited the highest temperature sensitivity of 439.89 pm °C−1 in the temperature range of 25–100 °C. This could be attributed to the very uniform and thin coating of polystyrene, along with the reasonable coefficient of thermal expansion and thermo-optic coefficient of polystyrene. Overall, the experimental results proved the effectiveness of the proposed polystyrene-coated temperature sensor for accurate temperature measurement. Full article
(This article belongs to the Special Issue Optical Fibre Based Pressure and Temperature Sensors for Biomedical and Industrial Applications)
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12 pages, 4541 KiB  
Article
Self-Imaging Effect in Liquid-Filled Hollow-Core Capillary Waveguide for Sensing Applications
by Yijian Huang, Shuhui Liu, Lichao Zhang, Yiping Wang and Ying Wang
Sensors 2020, 20(1), 135; https://doi.org/10.3390/s20010135 - 24 Dec 2019
Cited by 10 | Viewed by 3033
Abstract
A high sensitivity fiber-optic sensor based on self-imaging effect in a hollow-core capillary waveguide (HCCW) is presented for sensing applications. The sensor is composed of a section of HCCW fusion spliced between single mode fibers (SMFs). The self-imaging effect in the HCCW is [...] Read more.
A high sensitivity fiber-optic sensor based on self-imaging effect in a hollow-core capillary waveguide (HCCW) is presented for sensing applications. The sensor is composed of a section of HCCW fusion spliced between single mode fibers (SMFs). The self-imaging effect in the HCCW is investigated with different fiber lengths and arc-fusion parameters. By infiltrating the hollow core with index matching liquids, the peak wavelength of the proposed device shifts towards longer wavelengths. The temperature and refractive index (RI) responses of the sensor are studied systematically. When temperature is increased from 25 °C to 75 °C, the temperature sensitivity of the device can be improved significantly with the infiltrated structure, and reaches −0.49 nm/°C, compared with that of the un-filled device, which is 9.8 pm/°C. For the RI response, the liquid-filled structure achieves sensitivity of 12,005 nm/RIU in the range between 1.448 and 1.450, slightly higher than the 11,920 nm/RIU achieved by the un-filled one. The proposed sensor exhibits the advantages of simple structure, high sensitivity and low cost, which may find potential applications in physical and chemical sensing. Full article
(This article belongs to the Special Issue Optical Fibre Based Pressure and Temperature Sensors for Biomedical and Industrial Applications)
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9 pages, 1941 KiB  
Article
High-Temperature Sensitivity in Stimulated Brillouin Scattering of 1060 nm Single-Mode Fibers
by Sanggwon Song, Aeri Jung and Kyunghwan Oh
Sensors 2019, 19(21), 4731; https://doi.org/10.3390/s19214731 - 31 Oct 2019
Cited by 8 | Viewed by 3823
Abstract
With the rapid advancement of Yb-doped fiber lasers (YDFL) whose output wavelength is near 1060 nm, passive fibers to carry the high optical power at the spectral range are also gaining significant importance. Stimulated Brillouin scattering (SBS) in the passive fibers connecting components [...] Read more.
With the rapid advancement of Yb-doped fiber lasers (YDFL) whose output wavelength is near 1060 nm, passive fibers to carry the high optical power at the spectral range are also gaining significant importance. Stimulated Brillouin scattering (SBS) in the passive fibers connecting components in the lasers, especially, can set a fundamental limit in the power handling of YDFL systems. We experimentally analyzed SBS characteristics of passive single mode fibers (SMF) at a wavelength of 1060 nm. For two types of SMFs (Corning HI1060 and HI1060Flex), the Brillouin frequency (νΒ), its linewidth (ΔνΒ), and their variations with respect to the input laser power and the surrounding temperature were experimentally measured, along with the SBS threshold power (Pth). The optical heterodyne detection method was used to identify temperature-dependent SBS characteristics of fibers, and we found SMFs at λ = 1060 nm showed a temperature sensitivity in SBS frequency shift more than 40% higher than in conventional SMFs operating in C-band. Detailed procedures to measure the SBS properties are explained, and a new potential of 1060 nm SMF as a distributed temperature sensor is also discussed. Full article
(This article belongs to the Special Issue Optical Fibre Based Pressure and Temperature Sensors for Biomedical and Industrial Applications)
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