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Proceedings Paper

870nm Bragg grating in single mode TOPAS microstructured polymer optical fibre
Author(s): Wu Yuan; David J. Webb; Kyriacos Kalli; Kristian Nielsen; Alessio Stefani; Henrik K. Rasmussen; Ole Bang
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Paper Abstract

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 phasemask 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.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538X (18 May 2011); doi: 10.1117/12.884986
Show Author Affiliations
Wu Yuan, Technical Univ. of Denmark (Denmark)
David J. Webb, Aston Univ. (United Kingdom)
Kyriacos Kalli, Cyprus Univ. of Technology (Cyprus)
Kristian Nielsen, Technical Univ. of Denmark (Denmark)
Alessio Stefani, Technical Univ. of Denmark (Denmark)
Henrik K. Rasmussen, Technical Univ. of Denmark (Denmark)
Ole Bang, Technical Univ. of Denmark (Denmark)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors

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