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New Technology and Applications of Fiber Bragg Grating Sensors

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

Deadline for manuscript submissions: 25 October 2024 | Viewed by 1484

Special Issue Editor


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Guest Editor
School of Physics, Northwest University, Xi’an 710069, China
Interests: optical fiber Bragg technology; optical fiber sensing technology; optical fiber well logging technology

Special Issue Information

Dear Colleagues,

Optical fiber Bragg grating (FBG) sensors, beyond their applications in communications, have become hugely successful for sensing applications in the oil and gas industry, civil engineering, and aircraft industry. Recently, new FBG sensing technologies have been expanding their applications to new scenarios including medical instruments, large scientific facilities, space exploration, robotics, etc.

In this special issue, we warmly invite you to submit manuscripts relevant to new technology and applications of FBG sensors.

Topics include but are not limited to the following:

  • New grating structure;
  • FBGs in polymer fibers, single-crystal fibers, multicore fibers and other special fibers;
  • Femtosecond laser direct writing of FBGs;
  • Applications of FBG sensors in harsh environments;
  • Grating sensors for physical and biochemical measurements;
  • FBG sensor demodulation method;
  • Field test of FBG sensors;
  • New application scenarios of FBG sensors.

Dr. Ruohui Wang
Guest Editor

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

  • physical sensors
  • chemical and biosensors
  • long period grating sensors
  • titled fiber grating sensors
  • FBG fabrication
  • interrogation of FBG sensors
  • FBG multiplexing
  • special fiber gratings
  • new applications

Published Papers (1 paper)

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Research

11 pages, 2104 KiB  
Article
Femtosecond Inscription of a Fiber Bragg Grating Spectral Array in the Same Spatial Location
by Aviran Halstuch and Amiel A. Ishaaya
Sensors 2023, 23(8), 4064; https://doi.org/10.3390/s23084064 - 18 Apr 2023
Cited by 1 | Viewed by 1115
Abstract
A five fiber Bragg grating (FBG) array is inscribed at the same spot with a single uniform phase-mask (PM). The inscription setup consists of a near-infrared femtosecond laser, a PM, a defocusing spherical lens and a cylindrical focusing lens. The tunability of the [...] Read more.
A five fiber Bragg grating (FBG) array is inscribed at the same spot with a single uniform phase-mask (PM). The inscription setup consists of a near-infrared femtosecond laser, a PM, a defocusing spherical lens and a cylindrical focusing lens. The tunability of the center Bragg wavelength is achieved by a defocusing lens, and by translating the PM, which results in a different magnification of the PM. A first FBG is inscribed, followed by four cascading FBGs, which are inscribed exactly at the same spot only after the translation of the PM. The transmission and reflection spectra of this array are measured, showing a second-order Bragg wavelength at ~1.56 µm with a transmission dip of ~−8 dB. The spectral wavelength shift between each consecutive FBG is ~2.9 nm, and the total wavelength shift is ~11.7 nm. The reflection spectrum of the third-order Bragg wavelength is measured at ~1.04 µm, showing a wavelength separation of ~1.97 nm between neighboring FBGs, and the total spectral span between the first FBG and the last one is ~8 nm. Finally, the wavelength sensitivity to strain and temperature is measured. Full article
(This article belongs to the Special Issue New Technology and Applications of Fiber Bragg Grating Sensors)
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