2006
DOI: 10.1109/tim.2006.880295
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Characterization of Fiber Bragg Gratings by Phase-Sensitive Optical Low-Coherence Reflectometry

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Cited by 22 publications
(6 citation statements)
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“…According to [7], the interference signal I OLCR is proportional to the FBG reflectance spectrum. After median filtering of the time domain signal , program try to improve the spectral resoulation through padding zeros after the interference signal [8].…”
Section: Figure IV Main Demodulation Processmentioning
confidence: 99%
See 1 more Smart Citation
“…According to [7], the interference signal I OLCR is proportional to the FBG reflectance spectrum. After median filtering of the time domain signal , program try to improve the spectral resoulation through padding zeros after the interference signal [8].…”
Section: Figure IV Main Demodulation Processmentioning
confidence: 99%
“…Now the researches on OLCR mainly focus on the function application, but actually there is much scope to improve the properties of OLCR system used in FBG detecting. For examples, the repeatability of demodulated uniform FBG wavelength can only reach to 23pm according to [7], the resolution of FBG reflectance spectrum can only reach to 3pm according to [8]. Hence, we design the demodulation system of FBG reflectance spectrum with optimized OLCR set-up and corresponding LabVIEW program.…”
Section: Introductionmentioning
confidence: 99%
“…Optical low‐coherence reflectometry (OLCR) is a well established technique developed in the late 1980's that makes use of a low coherence optical source to resolve reflection events at the interfaces of an element under inspection along the propagation axis of light. This has been explored for evaluation of telecom devices , allowing for inspection inside optoelectronic or fiber‐optic devices. The technique was further adapted in the construction of the optical coherence tomographer through the inclusion of lateral scan capability .…”
Section: Introductionmentioning
confidence: 99%
“…Cependant, les techniques optiques (balayage spectral et variation de l'intensité) utilisées à ce jour pour les interroger n'exploitent qu'une partie du signal optique propagé dans la cavité, à savoir l'amplitude de la transmission spectrale [1,2]. La sensibilité de la phase n'étant pas à ce jour utilisée, nous proposons, en conséquence, d'employer un interféromètre optique à faible cohérence sensible à la phase [3,4] Nous présentons ici une brève description de la procédure de fabrication des microrésonateurs puis celle du dispositif de leur caractérisation. Les résultats démontrant le potentiel et l'efficacité de l'association des microrésonateurs et de l'interféromètre PS-OLCI dans le domaine de la biodétection sont également exposés.…”
Section: Introductionunclassified