Annealing effects on strain and stress sensitivity of polymer optical fibre based sensors

A. Pospori; C. A. F. Marques; M. G. Zubel; D. Sáez-Rodríguez; K. Nielsen; O. Bang; D. J. Webb

doi:10.1117/12.2227473

27 April 2016 Annealing effects on strain and stress sensitivity of polymer optical fibre based sensors

A. Pospori, C. A. F. Marques, M. G. Zubel, D. Sáez-Rodríguez, K. Nielsen, O. Bang, D. J. Webb

Proceedings Volume 9886, Micro-Structured and Specialty Optical Fibres IV; 98860V (2016) https://doi.org/10.1117/12.2227473
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

The annealing effects on strain and stress sensitivity of polymer optical fibre Bragg grating sensors after their photoinscription are investigated. PMMA optical fibre based Bragg grating sensors are first photo-inscribed and then they were placed into hot water for annealing. Strain, stress and force sensitivity measurements are taken before and after annealing. Parameters such as annealing time and annealing temperature are investigated. The change of the fibre diameter due to water absorption and the annealing process is also considered. The results show that annealing the polymer optical fibre tends to increase the strain, stress and force sensitivity of the photo-inscribed sensor.

Citation Download Citation

A. Pospori, C. A. F. Marques, M. G. Zubel, D. Sáez-Rodríguez, K. Nielsen, O. Bang, and D. J. Webb "Annealing effects on strain and stress sensitivity of polymer optical fibre based sensors", Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 98860V (27 April 2016); https://doi.org/10.1117/12.2227473

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