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Updated: May 8, 2026

Writing Bragg Gratings in Multicore Fibers
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Polymer micro-fiber Bragg grating.

Ginu Rajan1, Muhammad Yusof Mohd Noor, Nigel H Lovell

  • 1School of Electrical Engineering and Telecommunications, University of New South Wale, Sydney, Australia. ginu.rajan@unsw.edu.au

Optics Letters
|August 31, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers fabricated polymer micro-fiber Bragg gratings for high-sensitivity sensing. These micro-fiber Bragg gratings demonstrate potential for advanced sensor applications.

Area of Science:

  • Materials Science
  • Optical Engineering
  • Nanotechnology

Background:

  • Polymer optical fibers offer unique properties for photonic device fabrication.
  • Bragg gratings are crucial for wavelength-selective optical filtering and sensing.
  • Miniaturized optical components are essential for compact and sensitive measurement systems.

Purpose of the Study:

  • To fabricate and characterize polymer micro-fiber Bragg gratings.
  • To investigate the growth dynamics and optical properties of these gratings.
  • To evaluate the potential of polymer micro-fiber Bragg gratings for sensing applications.

Main Methods:

  • A two-stage tapering process was used to create a 16 μm diameter polymer micro-fiber.
  • A Bragg grating was inscribed using a 325 nm wavelength He-Cd laser.

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Last Updated: May 8, 2026

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  • The reflectivity, growth dynamics, and sensor response to temperature and strain were analyzed.

    • Main Results:

    • A polymer micro-fiber Bragg grating with a peak reflected wavelength around 1530 nm was successfully fabricated.
    • A maximum reflectivity of 5% was achieved with specific laser exposure parameters.
    • Characterization demonstrated the micro-fiber Bragg gratings' sensitivity to temperature and strain.

    Conclusions:

    • Polymer micro-fiber Bragg gratings can be fabricated with controlled optical properties.
    • These gratings exhibit promising characteristics for high-sensitivity sensor development.
    • The developed micro-fiber Bragg gratings hold potential for diverse sensing applications.