Wavelength tuning of polymer optical fibre Bragg grating at longer wavelengths permanently

Sagias, Georgios, Pospori, Andreas, Gallego, Daniel, Webb, David J. and Lamela Rivera, Horacio (2017). Wavelength tuning of polymer optical fibre Bragg grating at longer wavelengths permanently. IN: Third International Conference on Applications of Optics and Photonics. SPIE.

Abstract

Permanent Bragg wavelength tuning of polymer optical fibre Bragg grating (POFBG) at longer wavelengths has been demonstrated for the first time utilising the thermal annealing process. In general, exposing the polymer material above its β-Transition temperature, the fibre shrinks in length, the Bragg grating period becomes shorter and the Bragg wavelength shifts permanently to shorter wavelengths. In this work, a positive tuning of Bragg wavelength has been shown to be feasible when the polymer fibre is stretched during its thermal exposure. The results show that the degree of Bragg wavelength tuning strongly depends on the applying fibre strain or equivalently stress. The work presented in this paper can be used to multiplex POFBGs at any desirable wavelength.

Publication DOI: https://doi.org/10.1117/12.2276375
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Additional Information: Copyright: 2017, Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. Funding: People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007-2013/ under REA grant agreement No. 608382.
Event Title: 3rd Triennial International Conference on Applications of Optics and Photonics
Event Type: Other
Event Dates: 2017-05-08 - 2017-05-12
Uncontrolled Keywords: Bragg grating,Bragg wavelength,Multiplexing,Polymer optical fibre,Positive tuning,Thermal annealing,Electronic, Optical and Magnetic Materials,Condensed Matter Physics,Computer Science Applications,Applied Mathematics,Electrical and Electronic Engineering
Full Text Link: https://www.spi ... 12.2276375.full
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://spie.org ... 1117/12.2276375 (Publisher URL)
Published Date: 2017-08-22
Authors: Sagias, Georgios
Pospori, Andreas
Gallego, Daniel
Webb, David J. ( 0000-0002-5495-1296)
Lamela Rivera, Horacio

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