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Micromachines
Special Issues
Fiber Optic Sensing Technology: From Materials to Applications
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Fiber Optic Sensing Technology: From Materials to Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: 30 December 2025 | Viewed by 4391

Special Issue Editors

Dr. Na Zhao

E-Mail Website
Guest Editor
The State Key Laboratory for Mechanical Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710054, China
Interests: optical fibers; optical sensors; fiber Bragg grating; 2D materials
Special Issues, Collections and Topics in MDPI journals
Dr. Changsheng Li

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710054, China
Interests: precision; ultraprecision machining and measurement
Special Issues, Collections and Topics in MDPI journals
Dr. Benfeng Bai

E-Mail Website
Guest Editor
Department of Precision Instrument, Tsinghua University, Beijing 100084, China
Interests: nanophotonics; near-field optics; nanometrology; characterization of micro- and nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the continuous development of technological information, optical fiber sensing technology has increasingly received attention. This Special Issue mainly focuses on a series of studies ranging from the material analysis of optical fiber sensing, to the production of sensing probes, and ultimately to their applications, such as the ultraprecision processing of optical components and the progress in sensing capabilities of optical devices, the analysis of material properties, fiber optic sensing, optoelectronic conversion demodulation technology, and advanced manufacturing methods and technologies.

By combining material Ansys, optical sensing, and photoelectric conversion, the aim of this Special Issue is to consolidate the research achievements of various experts in this field and promote a wider understanding and application of optical fiber sensing technology. We welcome contributions from experts to support this endeavor.

Dr. Na Zhao
Dr. Changsheng Li
Dr. Benfeng Bai
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. Micromachines is an international peer-reviewed open access monthly 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 2100 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

  • optical fibers/sensors
  • optical fabrication
  • microstructure manufacturing
  • circuit design
  • multiparameter sensing
  • extreme environmental monitoring
  • health monitoring

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Published Papers (1 paper)

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Research

11 pages, 2269 KiB  
Article
FBG Interrogator Using a Dispersive Waveguide Chip and a CMOS Camera
by Zhenming Ding, Qing Chang, Zeyu Deng, Shijie Ke, Xinhong Jiang and Ziyang Zhang
Micromachines 2024, 15(10), 1206; https://doi.org/10.3390/mi15101206 - 29 Sep 2024
Viewed by 4009
Abstract
Optical sensors using fiber Bragg gratings (FBGs) have become an alternative to traditional electronic sensors thanks to their immunity against electromagnetic interference, their applicability in harsh environments, and other advantages. However, the complexity and high cost of the FBG interrogation systems pose a [...] Read more.
Optical sensors using fiber Bragg gratings (FBGs) have become an alternative to traditional electronic sensors thanks to their immunity against electromagnetic interference, their applicability in harsh environments, and other advantages. However, the complexity and high cost of the FBG interrogation systems pose a challenge for the wide deployment of such sensors. Herein, we present a clean and cost-effective method for interrogating an FBG temperature sensor using a micro-chip called the waveguide spectral lens (WSL) and a standard CMOS camera. This interrogation system can project the FBG transmission spectrum onto the camera without any free-space optical components. Based on this system, an FBG temperature sensor is developed, and the results show good agreement with a commercial optical spectrum analyzer (OSA), with the respective wavelength-temperature sensitivity measured as 6.33 pm/°C for the WSL camera system and 6.32 pm/°C for the commercial OSA. Direct data processing on the WSL camera system translates this sensitivity to 0.44 μm/°C in relation to the absolute spatial shift of the FBG spectra on the camera. Furthermore, a deep neural network is developed to train the spectral dataset, achieving a temperature resolution of 0.1 °C from 60 °C to 120 °C, while direct processing on the valley/dark line detection yields a resolution of 7.84 °C. The proposed hardware and the data processing method may lead to the development of a compact, practical, and low-cost FBG interrogator. Full article
(This article belongs to the Special Issue Fiber Optic Sensing Technology: From Materials to Applications)
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