Investigation of the in-solution relaxation of polymer optical fibre Bragg gratings

Andrea Fasano, Getinet Woyessa, Jakob Janting, Henrik K. Rasmussen, Ole Bang

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Abstract

We investigate the response of PMMA microstructured polymer optical fibre Bragg gratings whenimmersed in methanol/water solutions. Overall we observe a permanent blue-shift in Bragg gratingwavelength after solvent evaporation. The main contribution in the resonance wavelength shift probably arisesfrom a permanent change in the size of the fibre, as already reported for high-temperature annealing ofpolymer optical fibres. As a consequence of the solution concentration dependence of the glass transitiontemperature of polymers, different methanol/water solutions lead to various degrees of frozen-in stressrelaxation with an overall blue-shift of the Bragg grating wavelength.
Original languageEnglish
Title of host publicationProceedings of the 25th International Conference on Plastic Optical Fibers 2016
PublisherUniversity of Aston in Birmingham
Publication date2016
Pages4
ISBN (Electronic)9781854494085
Publication statusPublished - 2016
Event25th International Conference on Plastic Optical Fibres - Aston University, Birmingham, United Kingdom
Duration: 13 Sep 201615 Sep 2016
Conference number: 25

Conference

Conference25th International Conference on Plastic Optical Fibres
Number25
Location Aston University
CountryUnited Kingdom
CityBirmingham
Period13/09/201615/09/2016
SponsorAston University

Keywords

  • Polymer
  • Microstructured polymer optical fibre
  • Fibre Bragg grating
  • Annealing
  • Solution

Cite this

Fasano, A., Woyessa, G., Janting, J., Rasmussen, H. K., & Bang, O. (2016). Investigation of the in-solution relaxation of polymer optical fibre Bragg gratings. In Proceedings of the 25th International Conference on Plastic Optical Fibers 2016 (pp. 4). University of Aston in Birmingham.