870nm Bragg grating in single mode TOPAS microstructured polymer optical fibre

Wu Yuan, David J. Webb, Kyriacos Kalli, Kristian Nielsen, Alessio Stefani, Henrik K. Rasmussen, Ole Bang

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We report the fabrication and characterization of a fiber Bragg grating (FBG) with 870 nm resonance wavelength in a single-mode TOPAS microstructured polymer optical fiber (mPOF). The grating has been UV-written with the phase-mask technique using a 325 nm HeCd laser. The static tensile strain sensitivity has been measured as 0.64 pm/μstrain, and the temperature sensitivity was -60 pm/°C. This is the first 870nm FBG and the first demonstration of a negative temperature response for the TOPAS FBG, for which earlier results have indicated a positive temperature response. The relatively low material loss of the fiber at this wavelength compared to that at longer wavelengths will considerably enhance the potential utility of the TOPAS FBG.
Original languageEnglish
JournalProceedings of the SPIE - The International Society for Optical Engineering
Pages (from-to)77538X
Publication statusPublished - 2011
Event21st International Conference on Optical Fiber Sensors - Ottawa, Canada
Duration: 15 May 2011 → …
Conference number: 21


Conference21st International Conference on Optical Fiber Sensors
Period15/05/2011 → …


  • Microstructured polymer optical fiber
  • Fiber Bragg grating


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