Fibre Bragg grating photowriting in microstructured optical fibres for refractive index measurement

Minh-Châu Phan Huy (1) , Guillaume Laffont (1) , Yann Frignac (1) , Véronique Dewynter (1) , Pierre Ferdinand (1) , Philippe Roy (2) , Jean-Marc Blondy (2) , Dominique Pagnoux (2) , Wilfried Blanc (3) , Bernard Dussardier (3)

1 Centre d'Etude de Saclay
2 PHOTONIQUE
3 LPMC - Laboratoire de physique de la matière condensée

We report results relating to fibre Bragg grating photowriting in two kinds of Ge-doped core microstructured optical fibre devoted to sensing applications. A cross-comparison between theoretical and experimental modal field patterns is carried out. We present the first values of the spectral sensitivity of a Bragg grating in relation to the refractive index of calibrated oils inserted into the holes.

Mots clés: microstructured optical fibre; fibre Bragg grating; sensor; refractive index; modelling

Domaines: Optique / photonique; Optique [physics.optics]

Minh-Châu Phan Huy, Guillaume Laffont, Yann Frignac, Véronique Dewynter, Pierre Ferdinand, et al.. Fibre Bragg grating photowriting in microstructured optical fibres for refractive index measurement. Measurement Science and Technology, 2006, 17, pp.992-997. ⟨10.1088/0957-0233/17/5/S09⟩. ⟨hal-00508617⟩