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Proceedings Paper

Comparative study of different parameters of fibre Bragg gratings and long period gratings sensors for high-temperature measurements
Author(s): Luis Brito Melo; Nara Ângelo; Nelia Aberto; Carlos Marques; José Monteiro; Gaspar Rego; Paulo Caldas; Rogério Nogueira
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Paper Abstract

This paper presents a comparative study of the behaviour of different kinds of optical fibre sensors in response to high temperatures. It compares the performance of regenerated fibre Bragg gratings (FBGs) written in hydrogen-loaded and non-loaded fibres with long period gratings (LPGs) written through the two different processes of ultraviolet (UV) irradiation and electrical arc discharges. This work shows the importance of the use of hydrogen-loaded fibres to achieve regenerated FBGs capable of withstanding high temperatures as high as 955°C. In addition, the results demonstrated that LPGs recorded by electric arc discharges have higher thermal resistance than LPGs written by UV radiation.

Paper Details

Date Published: 26 July 2011
PDF: 7 pages
Proc. SPIE 8001, International Conference on Applications of Optics and Photonics, 800123 (26 July 2011); doi: 10.1117/12.892166
Show Author Affiliations
Luis Brito Melo, Instituto de Telecomunicações (Portugal)
Nara Ângelo, Univ. de Aveiro (Portugal)
Nelia Aberto, Univ. de Aveiro (Portugal)
Carlos Marques, Instituto de Telecomunicações (Portugal)
José Monteiro, INESC Porto (Portugal)
Escola Superior de Tecnologia e Gestão de Viana do Castelo (Portugal)
Gaspar Rego, INESC Porto (Portugal)
Escola Superior de Tecnologia e Gestão de Viana do Castelo (Portugal)
Paulo Caldas, INESC Porto (Portugal)
Escola Superior de Tecnologia e Gestão de Viana do Castelo (Portugal)
Rogério Nogueira, Instituto de Telecomunicações (Portugal)


Published in SPIE Proceedings Vol. 8001:
International Conference on Applications of Optics and Photonics
Manuel Filipe Costa, Editor(s)

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