Optical Fibers Beyond Communication: Advances in Sensing, Imaging, and Energy 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: 30 July 2026 | Viewed by 2098

Special Issue Editors

Institutes of Logistics Science and Technology, Shanghai Maritime University, Shanghai, China
Interests: optical fiber devices; fiber-optic sensing; marine environmental detection
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Guest Editor
School of Electrical and Information Engineering, Zhengzhou University, Zhengzhou, China
Interests: fiber-optic sensing; optical signal processing; lithium-ion battery monitoring

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Guest Editor
College of Automation Engineering, Shanghai University of Electric Power, Shanghai, China
Interests: fiber optic sensing; FBG demodulation; lithium-ion battery status monitoring and estimation; artificial intelligence

Special Issue Information

Dear Colleagues,

Optical fibers have long been the backbone of global telecommunications, but their potential extends far beyond data transmission. This Special Issue explores groundbreaking advancements in optical fiber technologies that are revolutionizing sensing, imaging, and energy applications. By leveraging novel materials, innovative fiber designs, and advanced signal processing techniques, researchers are unlocking unprecedented functionalities in these versatile photonic platforms.

We invite contributions that demonstrate cutting-edge developments in fiber-optic sensing innovations (distributed and multi-parameter sensors, biochemical sensing, and extreme-environment monitoring), next-generation fiber-based imaging (ultra-thin endoscopes and minimally invasive medical diagnostics, computational imaging, and hyperspectral and multimodal imaging systems), and energy applications (oil and gas, electric power, underground and underwater, and wind and solar farms).

This Special Issue seeks high-quality research articles, reviews, and case studies that highlight measurable performance improvements, novel applications, or scalable fabrication methods. Interdisciplinary studies combining photonics, materials science, AI-driven signal processing, and real-world deployment are particularly encouraged.

By showcasing the latest innovations, this collection aims to accelerate the adoption of optical fibers in next-generation technologies, from smart infrastructure and precision medicine to space exploration and sustainable energy systems.

Dr. Yunhe Zhao
Dr. Yanpeng Li
Dr. Wenjuan Sheng
Guest Editors

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Keywords

  • multifunctional or multi-material fibers
  • fiber-optic sensors
  • environmental monitoring
  • biomedical imaging
  • computational imaging
  • energy applications

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Published Papers (2 papers)

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Research

19 pages, 4316 KB  
Article
Development of a Spindle-Type FBG Pressure Sensor for Pressure Monitoring at the Wind Turbine Foundation Ring–Concrete Interface
by Xinxing Chen, Wenjing Wu, Zhenpeng Yang, Shijie Zheng and Heming Wei
Photonics 2025, 12(11), 1139; https://doi.org/10.3390/photonics12111139 - 18 Nov 2025
Viewed by 624
Abstract
This study presents a fiber Bragg grating (FBG) pressure sensor with a spindle-type protective structure, optimized using the NSGA-II algorithm, for monitoring pressure variations at the contact interface between wind turbine foundation rings and concrete. To optimize the sensor sensitivity and measurement range, [...] Read more.
This study presents a fiber Bragg grating (FBG) pressure sensor with a spindle-type protective structure, optimized using the NSGA-II algorithm, for monitoring pressure variations at the contact interface between wind turbine foundation rings and concrete. To optimize the sensor sensitivity and measurement range, the NSGA-II algorithm was employed to determine the optimal structural dimensions and material properties of the spindle-type sensor. This approach addresses two critical challenges: firstly, enhancing the survivability of FBG pressure sensors in harsh service environments, and secondly, enabling accurate monitoring of weak pressure signals at the foundation ring–concrete interface. Linearity verification tests demonstrate a sensor sensitivity of 55.01 pm/MPa within a 10 MPa measurement range, accompanied by a linear correlation coefficient of 0.999, confirming high stability of the fabricated sensors. Furthermore, wind turbine foundation model experiments validate the practical service performance of the proposed sensor. Results indicate that the spindle-type FBG pressure sensor not only withstands severe operating conditions but also achieves real-time monitoring of interfacial pressure changes in foundation ring–concrete systems. Full article
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16 pages, 3003 KB  
Article
Development of a Large-Range FBG Strain Sensor Based on the NSGA-II Algorithm
by Wenjing Wu, Zhenpeng Yang, Xinxing Chen, Heming Wei, Xiao Wu and Dengwei Zhang
Photonics 2025, 12(10), 985; https://doi.org/10.3390/photonics12100985 - 3 Oct 2025
Viewed by 670
Abstract
To monitor large deformations in dovetail tenon joints of Dong ethnic wooden drum towers, this study designs a large-range Fiber Bragg Grating (FBG) strain sensor based on the FBG sensing principle. The NSGA-II algorithm is utilized to optimize the packaging structure of FBG [...] Read more.
To monitor large deformations in dovetail tenon joints of Dong ethnic wooden drum towers, this study designs a large-range Fiber Bragg Grating (FBG) strain sensor based on the FBG sensing principle. The NSGA-II algorithm is utilized to optimize the packaging structure of FBG strain sensors. Consequently, an adaptive optimization methodology for its packaging configuration is proposed. This study sets the optimization objectives as a 5000 με measurement range and 0.1 pm/με sensitivity. It employs the NSGA-II algorithm to optimize the structural dimensions and material properties of the large-range FBG strain sensor. This process yields three combinations that meet the requirements for monitoring large deformations in dovetail tenon joints of Dong wooden drum towers. Subsequent linearity experiments were conducted to verify the sensitivity stability and measurement range of the three large-range FBG strain sensors. The results show that within the measurement range of 0–6000 με, all three sensors achieve a strain sensitivity of 0.099 pm/με, with a fitted linear correlation coefficient of 0.999. Full article
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