4.6 Article

Fabrication and characterization of polycarbonate microstructured polymer optical fibers for high-temperature-resistant fiber Bragg grating strain sensors

Journal

OPTICAL MATERIALS EXPRESS
Volume 6, Issue 2, Pages 649-659

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OME.6.000649

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Funding

  1. People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7 under REA [608382]
  2. Innovation Fund Denmark [4107-00011A]
  3. Danish Council for Independent Research (FTP) [4184-00359B]
  4. Eugen Lommel Stipend

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Here we present the fabrication of a solid-core microstructured polymer optical fiber (mPOF) made of polycarbonate (PC), and report the first experimental demonstration of a fiber Bragg grating (FBG) written in a PC optical fiber. The PC used in this work has a glass transition temperature of 145 degrees C. We also characterize the mPOF optically and mechanically, and further test the sensitivity of the PC FBG to strain and temperature. We demonstrate that the PC FBG can bear temperatures as high as 125 degrees C without malfunctioning. In contrast, polymethyl methacrylate-based FBG technology is generally limited to temperatures below 90 degrees C. (C) 2016 Optical Society of America

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