Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/19098
Title: | Utilising thermal annealing for multiplexing and sensitivity enhancement of polymer optical fibre sensors | Authors: | Pospori, Andreas Marques, Carlos Alberto F. Sagias, Georgios Lamela Rivera, Horacio Sáez-Rodríguezd, D. Nielsen, Kristian Bang, Ole Webb, David J. |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Keywords: | Annealing;Fiber optic sensors;Fibers;Plastic optical fibers;Polymers | Issue Date: | 28-Aug-2019 | Source: | Seventh European Workshop on Optical Fibre Sensors, 2019, 1-4 October, Limassol, Cyprus | Conference: | European Workshop on Optical Fibre Sensors | Abstract: | Thermal annealing was initially introduced for multiplexing purposes, since it can induce a permanent negative Bragg wavelength shift for polymer fibre grating sensors. At a later stage, it is shown that annealing can also provide additional benefits, such as strain and humidity sensitivity enhancement and augmented temperature operational range. In this paper, we report additional usage of thermal annealing on PMMA fibre Bragg grating sensors. We show the possibility to tune Bragg wavelengths to longer wavelengths permanently by stretching the polymer optical fibre during the thermal annealing process. An array of sensors fabricated with only one phase-mask, demonstrates the concept by having Bragg wavelengths below and above the original inscribed spectral position. In addition, we report that thermal annealing can be also used to enhance the performance of sensors when used for stress and force monitoring. | URI: | https://hdl.handle.net/20.500.14279/19098 | ISBN: | 978-151063123-6 | DOI: | 10.1117/12.2541767 | Rights: | © SPIE | Type: | Conference Papers | Affiliation : | Cyprus University of Technology University of Aveiro Universidad Carlos III de Madrid Aston University DTU Fotonik |
Publication Type: | Peer Reviewed |
Appears in Collections: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
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