Miniature fiber-optic high temperature sensor based on a hybrid structured Fabry-Perot interferometer.
Opt Lett
; 33(21): 2455-7, 2008 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-18978885
ABSTRACT
A miniature Fabry-Perot (FP) interferometric fiber-optic sensor suitable for high-temperature sensing is proposed and demonstrated. The sensor head consists of two FP cavities formed by fusion splicing a short hollow-core fiber and a piece of single-mode fiber at a photonic crystal fiber in series. The reflection spectra of an implemented sensor are measured at several temperatures and analyzed in the spatial frequency domain. The experiment shows that the thermal-optic effect of the cavity material is much more appreciable than its thermal expansion. The temperature measurements up to 1000 degrees C with a step of 50 degrees C confirm that it could be applicable as a high-temperature sensor.
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MEDLINE
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article