Laser à Mode de Galerie en Verres Fluorés Dopés Erbium

Abstract

National audienceLight can be confined efficiently in the high quality factor (Q), small volume whispering-gallery-modes observed in spherical dielectric microresonators. The properties of these modes allow to obtain laser action in Rare-Earth doped glass spheres. After a brief introduction to the physics of the whispering-gallery modes, we describe recent experiments on the lasing properties of doped microspheres at room temperature