Different Er3+ environments in Mg-based nanoparticles-doped optical fibre preforms

Francesco d'Acapito (1, 2) , Wilfried Blanc (3) , Bernard Dussardier (3)

1 ESRF - European Synchrotron Radiation Facility
2 CNR-IOM-OGG - CNR-IOM-OGG
3 LPMC - Laboratoire de physique de la matière condensée

Developing new rare-earth ion-doped optical fibres for power amplifiers and lasers requires continuous improvements in fibre spectroscopic properties. To overcome some limitations inherent to silica glass, it is proposed to embed rare-earth ions in dielectric nanoparticles. In this article we focus on the modifications of the Er3+ ion spectroscopy in Mg-silicate nanoparticles doped into optical fibre preforms. Through EXAFS and fluorescence measurements, we demonstrate that different local environments are experienced by Er3 + ions, attributed to the depolymerization of the phosphate network. These results gain insight into the tailoring of luminescence properties.

Mots clés: Silica; Erbium; Nanoparticles; Magnesium; EXAFS; Fluorescence

Domaines: Optique / photonique

Francesco d'Acapito, Wilfried Blanc, Bernard Dussardier. Different Er3+ environments in Mg-based nanoparticles-doped optical fibre preforms. Journal of Non-Crystalline Solids, 2014, 401, pp.50-53. ⟨10.1016/j.jnoncrysol.2013.12.040⟩. ⟨hal-01053778⟩