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Fiber grating sensing interrogation based on an InGaAs photodiode linear array.

Guoyu Li1, Tuan Guo, Hao Zhang

  • 1Institute of Modern Optics, Nankai University, Tianjin City, China. guoyu_li@mail.nankai.edu.cn

Applied Optics
|January 18, 2007
PubMed
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A novel fiber grating sensing interrogation technique uses an indium gallium arsenide photodiode linear array and blazed fiber Bragg gratings. This smart sensing system demonstrates promising performance for future applications.

Area of Science:

  • Optoelectronics
  • Fiber Optic Sensors
  • Photonics

Background:

  • Fiber Bragg gratings (FBGs) are widely used in sensing applications.
  • Traditional interrogation techniques can be complex and expensive.

Purpose of the Study:

  • To develop a new, efficient interrogation technique for fiber grating sensing.
  • To design and analyze an interrogation system utilizing specific optoelectronic components.

Main Methods:

  • Utilized a blazed fiber Bragg grating.
  • Employed an indium gallium arsenide (InGaAs) photodiode linear array for signal detection.
  • Designed and implemented a novel interrogation system architecture.

Main Results:

  • The developed system successfully interrogates fiber grating sensors.

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  • Performance analysis indicates high potential for the designed system.
  • The system demonstrates a practical approach to FBG sensing.

    • Conclusions:

    • The proposed fiber grating sensing interrogation method is effective.
    • The indium gallium arsenide photodiode linear array-based system shows promise for smart sensing applications.
    • This technique offers a viable solution for advanced optical sensing.