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High-temperature fibre Bragg grating thermometer

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1 Author(s)
Brambilla, G. ; Optoelectron. Res. Centre, Southampton Univ.

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

Published in:

Electronics Letters  (Volume:38 ,  Issue: 17 )