Optical Fiber Sensors: Design and Application

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 2105

Special Issue Editors


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Guest Editor
Key Lab of In-Fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, No.145-11, Nantong Street, Nangang District, Harbin 150001, China
Interests: optical fiber sensors; optical fiber design; long-period fiber grating
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Navigation Instrument Research Institute, Harbin Institute of Technology, No. 92 Xidazhi Street, Nangang District, Harbin 150000, China
Interests: integrated optical system; fiber optic sensing; multi physics field coupling measurement; inertial measurement technology

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Guest Editor
School of Mechanical Engineering and Electronic Information, China University of Geosciences, Wuhan 430074, China
Interests: advanced multi-functional multi-material fiber; fiber-shaped optoelectronic devices; functional sensor devices

Special Issue Information

Dear Colleagues,

Optical fiber sensors are renowned for their exceptional sensitivity, compactness, and ability to operate in harsh environments, making them essential in fields such as environmental monitoring, structural health diagnostics, biomedical applications, and industrial process control. This Special Issue focuses on the innovative design of optical fiber sensor structures, including fiber Bragg gratings, long-period gratings, interferometric sensors, and advanced micro-structured fibers. Emphasis will be placed on novel fabrication methods, the integration of functional materials, and approaches to enhance sensitivity, selectivity, and robustness. Interrogation techniques, such as wavelength-shift detection, phase modulation, polarization analysis, and distributed sensing, are crucial for converting optical signals into measurable data. The collection will explore developments in interrogation technologies, signal processing algorithms, and real-time monitoring systems to improve performance and reliability. Contributions showcasing applications of optical fiber sensors in emerging fields like industrial automation, aerospace, smart cities, IoT, autonomous systems, green energy solutions, and materials science are particularly encouraged.

This Special Issue seeks to provide a platform for researchers and engineers to present their cutting-edge work, foster collaboration, and drive innovation in the evolving field of optical fiber sensing.

This Special Issue aims to publish high-quality papers which study important emerging technologies in fiber sensing. Research areas may include (but are not limited to) the following topics:

  • Optical fiber sensors;
  • Optical signal processing technology;
  • Optical micro-cavity sensing technology;
  • Optical fiber processing technology;
  • Optical fiber gyro;
  • Optical fiber gratings;
  • Optical fiber 3D printing;
  • Microstructure fiber sensors;
  • New concepts for fiber optic sensors.

We look forward to receiving your contributions.

Dr. Yiwei Ma
Dr. Zicheng Wang
Prof. Dr. Jing Zhang
Guest Editors

Manuscript Submission Information

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Keywords

  • optical fiber sensors
  • optical fiber sensing
  • optical fiber gyro
  • optical fiber gratings
  • optical data processing
  • photonic material
  • structure-modulated fiber sensor
  • signal processing
  • microstructure fiber sensors

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Published Papers (1 paper)

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Research

14 pages, 6014 KiB  
Article
Highly Sensitive Temperature Sensor Based on a UV Glue-Filled Fabry–Perot Interferometer Utilizing the Vernier Effect
by Chengwen Qiang, Chu Chu, Yuhan Wang, Xinghua Yang, Xinyu Yang, Yuting Hou, Xingyue Wen, Pingping Teng, Bo Zhang, Sivagunalan Sivanathan, Adam Jones and Kang Li
Photonics 2025, 12(3), 256; https://doi.org/10.3390/photonics12030256 - 13 Mar 2025
Viewed by 1543
Abstract
A parallel Fabry–Perot interferometer (FPI) optical fiber sensor, enhanced with UV glue, was proposed for environmental temperature detection. The UV glue is applied to the fiber’s sensing region using a coating method, forming an FP cavity through misalignment welding, allowing the FP to [...] Read more.
A parallel Fabry–Perot interferometer (FPI) optical fiber sensor, enhanced with UV glue, was proposed for environmental temperature detection. The UV glue is applied to the fiber’s sensing region using a coating method, forming an FP cavity through misalignment welding, allowing the FP to function as a temperature sensor. In parallel, a reference FPI with a similar free spectral range (FSR) is connected, generating a Vernier effect that amplifies small changes in the refractive index (RI) of the sensing region. The study demonstrates that UV glue enhances the temperature-sensing capabilities of the FP, and when combined with the Vernier effect, it significantly improves the sensitivity of a single interferometric sensor. The temperature sensitivity of the parallel-connected FPI is −2.80219 nm/°C, which is 7.768 times greater than that of a single FPI (−0.36075 nm/°C). The sensor shows high sensitivity, stability, and reversibility, making it promising for temperature-monitoring applications in various fields, including everyday use, industrial production, and the advancement of optical fiber temperature-sensing technologies. Full article
(This article belongs to the Special Issue Optical Fiber Sensors: Design and Application)
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