Title :
Multi-point in-line refractometry using tilted fiber Bragg gratings
Author :
Caucheteur, C. ; Wuilpart, M. ; Chen, C. ; Mégret, P. ; Albert, J.
Author_Institution :
Electromagn. & Telecommun. Unit, Fac. Polytech. de Mons, Mons
Abstract :
Tilted fiber Bragg gratings have been demonstrated to be accurate refractometers. Because they require spectral measurements on several tens of nanometers, demodulation techniques reported so far are not suited for quasi-distributed refractive index sensing using TFBGs cascaded along a single optical fiber. We demonstrate here that a commercial OTDR can be used to multiplex identical TFBGs refractometers written in the same optical fiber.
Keywords :
Bragg gratings; fibre optic sensors; optical fibres; refractive index measurement; multipoint in-line refractometry; optical time domain reflectometer; refractive index sensing; refractometers; tilted fiber Bragg gratings; Demodulation; Fiber gratings; Monitoring; Optical fiber sensors; Optical fibers; Optical refraction; Optical sensors; Refractive index; Resonance; Wavelength measurement;
Conference_Titel :
IEEE/LEOS Winter Topicals Meeting Series, 2009
Conference_Location :
Innsbruck
Print_ISBN :
978-1-4244-2610-2
Electronic_ISBN :
978-1-4244-2611-9
DOI :
10.1109/LEOSWT.2009.4771662
