Conference paper
870nm Bragg grating in single mode TOPAS microstructured polymer optical fibre
Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark1
Department of Photonics Engineering, Technical University of Denmark2
Aston University3
Cyprus University of Technology4
Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark5
Department of Mechanical Engineering, Technical University of Denmark6
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.
| Language: | English |
|---|---|
| Publisher: | SPIE |
| Year: | 2011 |
| Pages: | 77538X-4 |
| Proceedings: | 21st International Conference on Optical Fiber Sensors |
| ISSN: | 1996756x and 0277786x |
| Types: | Conference paper |
| DOI: | 10.1117/12.884986 |
| ORCIDs: | Stefani, Alessio , Rasmussen, Henrik K. and Bang, Ole |
