Author/Authors :
Nunzi Conti، نويسنده , , G. and Chiasera، نويسنده , , A. and Ghisa، نويسنده , , L. and Berneschi، نويسنده , , S. and Brenci، نويسنده , , M. and Dumeige، نويسنده , , Y. and Pelli، نويسنده , , S. and Sebastiani، نويسنده , , S. and Feron، نويسنده , , P. and Ferrari، نويسنده , , M. and Righini، نويسنده , , G.C.، نويسنده ,
Abstract :
We report experimental results on the characterization of microspherical cavities fabricated in Er3+-doped modified-silica and phosphate glasses. The spectroscopic properties of the bulk precursor glasses as compared to the obtained microspheres were investigated by photoluminescence spectroscopy and lifetime measurement for the 4I13/2 → 4I15/2 transition of Er3+ ions. In both types of glasses we demonstrate whispering gallery mode laser action at various wavelengths around 1550 nm by using a 1480 nm pump laser coupled through a tapered fiber.
Keywords :
optical spectroscopy , lasers , Time resolved measurements , Luminescence , phosphates , silicates , Rare-earths in glasses
