Recent Research on Optical Sensing and Precision Measurement

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

Deadline for manuscript submissions: 10 March 2025 | Viewed by 706

Special Issue Editors

State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China
Interests: micro-optical sensing; micro-opto-electro-mechanical systems; optical fiber sensing
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Guest Editor
School of Measuring and Optical Engineering, Nanchang Hangkong University, Nanchang, China
Interests: microcavity photonics and sensing; nonlinear optics; microcavity frequency comb; ultra-precision machining and microwave photonics
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Special Issue Information

Dear Colleagues,

Advanced optical sensing and precision measurement technologies are the foundation of scientific research. Optics provides an effective method for precision measurement and sensing, and it demonstrates strong advantages in time and space resolution, low-light imaging, quantum sensing, precision spectroscopy, fiber optic sensing, laser gyroscopes, etc.

This Special Issue, therefore, will put together original research and review articles on recent advances, technologies, applications, and new challenges in the field of “Recent Research on Optical Sensing and Precision Measurement”. Topics include, but are not limited to, the following:

  • Optical sensors;
  • Remote sensors;
  • 3D optical measurement;
  • Ladar;
  • Optical metrology;
  • Interferometry measurement;
  • Extreme measurement;
  • Spectral imaging;
  • New theory and technology of optical imaging and measurement;
  • Advanced fabrication technologies for micro/nano optics and photonics, etc.

Dr. Wenyao Liu
Dr. Chengfeng Xie
Guest Editors

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Keywords

  • optical sensing
  • temperature measurement
  • gas/liquid measurement
  • bio/biochemical/biomedical measurement
  • electric/magnetic field measurement
  • strain/pressure/force measurement
  • angular velocity sensor
  • quantum sensing
  • precision measurement
  • spectral imaging
  • terahertz imaging
  • optical instruments
  • trace detection

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Published Papers (1 paper)

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Research

12 pages, 4110 KiB  
Article
Wavelength Locking and Calibration of Fiber-Optic Ultrasonic Sensors Using Single-Sideband-Modulated Laser
by Mohammed Alshammari and Ming Han
Photonics 2024, 11(11), 1063; https://doi.org/10.3390/photonics11111063 - 13 Nov 2024
Viewed by 519
Abstract
Implementation of edge-filter detection for interrogating optical interferometric ultrasonic sensors is often hindered by the lack of cost-effective laser sources with agile wavelength tunability and good noise performance. The detected signal can also be affected by optical power variations and locking-point drift, negatively [...] Read more.
Implementation of edge-filter detection for interrogating optical interferometric ultrasonic sensors is often hindered by the lack of cost-effective laser sources with agile wavelength tunability and good noise performance. The detected signal can also be affected by optical power variations and locking-point drift, negatively affecting the sensor accuracy. Here, we report the use of laser single-sideband generation with a dual-parallel Mach–Zehnder interferometer (DP-MZI) for laser wavelength tuning and locking in edge-filter detection of fiber-optic ultrasonic sensors. We also demonstrate real-time in situ calibration of the sensor response to ultrasound-induced wavelength shift tuning. The DP-MZI is employed to generate a known wavelength modulation of the laser, whose response is used to gauge the sensor response to the ultrasound-induced wavelength shifts in real time and in situ. Experiments were performed on a fiber-optic ultrasonic sensor based on a high-finesse Fabry–Perot interferometer formed by two fiber Bragg gratings. The results demonstrated the effectiveness of the laser locking against laser wavelength drift and temperature variations and the effectiveness of the calibration method against optical power variations and locking-point drift. These techniques can enhance the operational robustness and increase the measurement accuracy of optical ultrasonic sensors. Full article
(This article belongs to the Special Issue Recent Research on Optical Sensing and Precision Measurement)
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