Title :
High-temperature fibre Bragg grating thermometer
Author :
Brambilla, Gilberto
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ.
fDate :
8/15/2002 12:00:00 AM
Abstract :
The use of gratings written in tin-doped silica fibres as a thermometer for high-temperature applications is described. Measurements up to ~800°C show a significant advantage over conventional fibre gratings. A considerable blue-shift has been observed at high temperatures. If corrections for blue-shift are taken into account, the errors are smaller than ~2°C
Keywords :
Bragg gratings; fibre optic sensors; high-temperature techniques; silicon compounds; spectral line shift; thermal stability; thermometers; tin; 800 C; SiO2:Sn; SiO2:Sn high-temperature fibre Bragg grating thermometer; blue-shift corrections; enhanced thermal stability; fibre Bragg grating; high-temperature applications; minimal-intrusion fibre-thermometer; optical fibre thermometry;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020662
