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Proceedings Paper

Wavelength sensitive time-domain interrogating system for a quasi-distributed temperature sensor
Author(s): C. Crunelle; M. Wuilpart; C. Caucheteur; P. Mégret
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Paper Abstract

A quasi-distributed temperature monitoring system based on the concatenation of identical low reflective Fibre Bragg Gratings and interrogated by means of an Optical Time Domain Reflectometer is presented. A wavelength sensitive system placed before the OTDR detector is used to analyse the reflected signal. This system allows the height of the FBG reflection peaks in the OTDR trace to depend on their resonance wavelength, and therefore to temperature. Simulations and experimental results are exposed.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043O (16 May 2008); doi: 10.1117/12.786096
Show Author Affiliations
C. Crunelle, Faculté Polytechnique de Mons (Belgium)
M. Wuilpart, Faculté Polytechnique de Mons (Belgium)
C. Caucheteur, Faculté Polytechnique de Mons (Belgium)
P. Mégret, Faculté Polytechnique de Mons (Belgium)


Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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