Special Issue "Optical Fiber Interferometric Sensors: New Production Methodologies and Novel Applications"

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: 15 December 2020.

Special Issue Editors

Prof. Paulo André
Website
Guest Editor
Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
Interests: study and simulation of optoelectronics components; fiber Bragg gratings; integrated optics in sol-gel substrates; passive optical networks; big data processing
Dr. Nélia J. Alberto
Website
Guest Editor
Instituto de Telecomunicações, Aveiro, Portugal
Interests: optical fiber sensors; fiber Bragg gratings; fiber sensors applications; biosensing
Special Issues and Collections in MDPI journals
Dr. Maria de Fátima Domingues
Website
Guest Editor
Instituto de Telecomunicações, Aveiro, Portugal
Interests: optical fiber sensors; fiber Bragg gratings; Fabry-Perot interformetric sensors; eHealth applications; gait analysis; wearable sensing devices
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Optical fiber interferometric sensors have been widely investigated for potential application in many situations, such as, for example, monitoring temperature, strain, pressure, and most recently, in the detection and characterization of different physical, chemical, and also physiological parameters.
This Special Issue will focus on current state-of-the-art research in optical fiber interferometric sensors, covering recent technological improvements, new production methodologies, and emerging applications.
Both original research papers and review articles describing current state-of-the-art innovations in this research field are welcome. We hope this SI will provide you an overview of the present status and future outlook of the aforementioned topics.

The manuscripts should cover, but are not limited to, the following topics:

  • New and/or low-cost interferometers production methods
  • Novel optical fibers and Fabry-Perot, Mach-Zehnder, Michelson, and Sagnac-based sensors
  • Optical fiber interferometric based sensing for physical and chemical parameters
  • Optical fiber interferometric systems with microfluid integration
  • Low-cost, miniaturized, selective and multiparameter optical fiber interferometric devices
  • New bio/chemical probes for biomedical applications
  • Wearable/biomedical interferometric sensors
  • Advanced signal processing techniques
  • New interrogation techniques for interferometric sensors

Applications may include, but not limited to medical diagnostics and therapy instrumentation, structure health monitoring, chemical processing, metrology, aquaculture, oil and gas industry, robotics.

Dr. Maria de Fátima Domingues
Dr. Nélia J. Alberto
Prof. Paulo André
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 papers will be 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. Photonics is an international peer-reviewed open access quarterly 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 1400 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.

Published Papers (2 papers)

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Research

Open AccessCommunication
Salinity Sensing Characteristics Based on Optical Microfiber Coupler Interferometer
Photonics 2020, 7(3), 77; https://doi.org/10.3390/photonics7030077 - 21 Sep 2020
Cited by 1
Abstract
In this paper, we report a novel and compact sensor based on an optic microfiber coupler interferometer (OMCI) for seawater salinity application. The OMCI device is fabricated by connecting Faraday rotating mirrors to the two out-ports of the microfiber coupler, respectively. The sensor [...] Read more.
In this paper, we report a novel and compact sensor based on an optic microfiber coupler interferometer (OMCI) for seawater salinity application. The OMCI device is fabricated by connecting Faraday rotating mirrors to the two out-ports of the microfiber coupler, respectively. The sensor signal processing is based on a wavelength demodulation technique. We theoretically analyze the sensing characteristics with different device structure parameters. Besides, the results show that the date reading error decreases with the thinner waist region and longer arm difference. Through the experiment, the reflection spectra red-shifted as the sea water salinity increased; the highest response sensitivity of the OMCI salinity sensor reached 303.7 pm/‰ for a range of 16.6–23.8‰, and the resolution was less than 0.03‰. This study provides a new technical solution for the development of practical optical fiber seawater salinity sensors. Full article
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Open AccessArticle
Liquid-Filled Highly Asymmetric Photonic Crystal Fiber Sagnac Interferometer Temperature Sensor
Photonics 2020, 7(2), 33; https://doi.org/10.3390/photonics7020033 - 19 May 2020
Cited by 1
Abstract
In this paper, we theoretically designed and numerically studied a high-resolution and ultrasensitive photonic crystal fiber temperature sensor by selective filling of a liquid with high thermo-optic coefficient in one of the airholes of the fiber. The finite element method was utilized to [...] Read more.
In this paper, we theoretically designed and numerically studied a high-resolution and ultrasensitive photonic crystal fiber temperature sensor by selective filling of a liquid with high thermo-optic coefficient in one of the airholes of the fiber. The finite element method was utilized to study the propagation characteristics and the modal birefringence of the fiber under different ambient temperatures. A large base birefringence value of 7.7 × 10−4 as well as a large birefringence sensitivity of almost 29% to a 10 °C temperature variation was achieved for the optimized fiber design with liquid chloroform between 15 °C and 35 °C. We also studied the performance of the proposed optical fiber in a temperature sensing Sagnac interferometer. An average linear temperature sensitivity of 17.53 nm/°C with an average resolution of 5.7 × 10−4 °C was achieved over a temperature range of 20 °C (15 °C to 35 °C). Full article
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