Progress in Fiber Optic Sensors: Design and 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 May 2025 | Viewed by 430

Special Issue Editor


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Guest Editor
School of Electronic and Information Engineering, Southwest University, No.2, Tiansheng Road, BeiBei District, Chongqing 400715, China
Interests: fiber optic sensors; nitrogen-vacancy-based quantum sensing; fiber optic devices

Special Issue Information

Dear Colleagues,

The rapid developments in optical fiber manufacturing, fiber optic device fabrication, new functional materials, and related new technologies have renewed fiber optic sensor technology, including principles, design, and applications. Historically, the advent of the ultraviolet laser brought fiber Bragg grating technology into the mature application market. Similarly, the emergence of photonic crystal fiber technology, the introduction of micro/nano processing technology, and especially femtosecond laser processing technology have opened new ways for the development of fiber sensing to meet the challenges of scientific research and industrial applications. In recent years, optical sensing technology has made significant progress. In addition to traditional fiber gratings and fiber optic interferometric cavity sensors, new distributed sensing techniques have emerged as promising areas of research and application. The advancement of new technologies, such as quantum sensing technology and the development of new functional materials, has prompted the integration of quantum sensing and new material technologies into fiber optic sensing to improve sensitivity and ease of use, thereby meeting the requirements of emerging scientific research and industrial applications.

This Special Issue aims at presenting an overview of the progress of the fiber optic sensors, their design, and their applications. We welcome broad, visionary contributions of short research reports as well as a collection of reviews of accomplishments. We are excited to invite researchers to submit their contributions to this Special Issue. Topics include, but are not limited to, the following:

  • Fiber optic sensor designs;
  • Fiber optic sensor fabrication technology;
  • Fiber optic sensor applications;
  • Fiber optic quantum sensors;
  • Diamond nitrogen-vacancy and optical fiber integrated quantum sensors;
  • Fiber optic biosensors;
  • Fiber optic chemical sensors;
  • Fiber optic distribution sensors;
  • Fiber optical devices;
  • Fiber optical microscope;
  • Optical tweezers.

Dr. Dewen Duan
Guest Editor

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Keywords

  • fiber optic sensors
  • fiber optic devices
  • fiber optic sensing (FOS) technology
  • FOS advances
  • sensors

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Published Papers (1 paper)

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Research

9 pages, 1275 KiB  
Article
Diamond-Based Fiber-Optic Fabry–Perot Interferometer with Ultrawide Refractive-Index Measurement Range
by Dewen Duan, Jianhao Yang, Yi Tang and Yi-Yuan Xie
Photonics 2024, 11(8), 763; https://doi.org/10.3390/photonics11080763 - 15 Aug 2024
Viewed by 358
Abstract
The majority of Fabry–Perot interferometer (FPI) tip refractive index (RI) sensors utilize silica optical fiber as the cavity material, with an RI of approximately 1.45. This restricts their applicability in measuring the RI of liquids with an RI of approximately 1.45. Here, we [...] Read more.
The majority of Fabry–Perot interferometer (FPI) tip refractive index (RI) sensors utilize silica optical fiber as the cavity material, with an RI of approximately 1.45. This restricts their applicability in measuring the RI of liquids with an RI of approximately 1.45. Here, we propose a fiber-optic FPI-tip RI sensor by bonding a flat, thin diamond film onto the apex of a single-mode optical fiber. The FPI cavity is constructed from a diamond with an RI of approximately 2.4, theoretically enabling the sensor to achieve an ultrawide RI measurement range of 1 to 2.4. A theoretical comparison of its measurement performance was conducted with that of an FPI-tip RI sensor whose cavity is formed by silica fiber. Additionally, an experimental examination of the device’s RI measurement performance was conducted. The results show that the sensor has visibility to the RI unit of −0.4362/RIU in the RI range of 1.33 to 1.40. Combined with other narrow-RI-ranged high-sensitivity sensors, our proposed RI sensor has the potential for use in a wide range of applications. Full article
(This article belongs to the Special Issue Progress in Fiber Optic Sensors: Design and Applications)
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