Advanced Optical Fiber Sensors for Harsh Environment Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 20 August 2025 | Viewed by 995

Special Issue Editors


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Guest Editor
Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai, China
Interests: fiber optics; sensors and instrumentation; additive manufacturing
Zhejiang Lab, Hangzhou 311121, China
Interests: development of fiber-optic and microwave devices for sensing applications in harsh environments
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Special Issue Information

Dear Colleagues,

Optical fiber sensors have been widely researched and developed for energy, defense, environmental, biochemical and industry sensing applications. In general, optical fiber sensors are capable of operating under extreme environmental conditions, such as high temperature, high pressure and toxic/corrosive/erosive atmospheres. However, optical fiber sensors are also fragile and easy to break. It has been a challenging task to fabricate and package optical fiber sensors with a predictable performance and the desired reliability under harsh conditions.

This Special Issue invites manuscripts that introduce recent advances in “Advanced Optical Fiber Sensors for Harsh Environment Applications”. All theoretical, numerical, and experimental papers are welcome. Topics can include, but are not limited to, the following:

  • Structural health monitoring;
  • Advanced fiber-optic sensor manufacturing techniques;
  • AI for fiber-optic sensing applications;
  • Advanced fiber-optic sensors for high-temperature applications;
  • Advanced fiber-optic sensors for environmental monitoring;
  • Sensing materials for fiber-optic sensing applications;
  • Fiber-optic chemical sensors;
  • Multi-parameter fiber-optic sensors;
  • Dynamic and static fiber-optic sensors.

Dr. Qi Zhang
Dr. Chen Zhu
Guest Editors

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Keywords

  • fiber-optic sensor
  • fiber-optic sensing technology
  • advanced manufacturing technique
  • structural health monitoring
  • single-point sensing
  • ai for optical fiber sensing
  • distributed sensing
  • environmental monitoring
  • harsh environment sensing technique

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Published Papers (1 paper)

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Research

10 pages, 4190 KiB  
Communication
Research on High-Frequency PGC-EKF Demodulation Technology Based on EOM for Nonlinear Distortion Suppression
by Peng Wu, Qun Li, Jiabi Liang, Jian Shao, Yuncai Lu, Yuandi Lin, Tonglei Wang, Xiaohan Li, Zongling Zhao and Chuanlu Deng
Photonics 2024, 11(9), 801; https://doi.org/10.3390/photonics11090801 - 27 Aug 2024
Viewed by 706
Abstract
In this study, a phase-generated carrier (PGC) demodulation algorithm combined with the extended Kalman filter (EKF) algorithm based on an electro-optic modulator (EOM) is proposed, which can achieve nonlinear distortion (such as modulation depth drift and carrier phase delay) suppression for high-frequency phase [...] Read more.
In this study, a phase-generated carrier (PGC) demodulation algorithm combined with the extended Kalman filter (EKF) algorithm based on an electro-optic modulator (EOM) is proposed, which can achieve nonlinear distortion (such as modulation depth drift and carrier phase delay) suppression for high-frequency phase carrier modulation. The improved algorithm is implemented on a field-programmable gate array (FPGA) hardware platform. The experimental results by the PGC-EKF method show that total harmonic distortion (THD) decreases from −32.61 to −54.51 dB, and SINAD increases from 32.59 to 47.86 dB, compared to the traditional PGC-Arctan method. This indicates that the PGC-EKF demodulation algorithm proposed in this paper can be widely used in many important fields such as hydrophone, transformer, and ultrasound signal detection. Full article
(This article belongs to the Special Issue Advanced Optical Fiber Sensors for Harsh Environment Applications)
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