In the present paper, we report the preparation of Er3+-doped SiO2-TiO2-Al2O3 planar waveguides deposited on SOS (Silica on silicon) substrates using sol-gel process combining with spin-coating and rapid thermal annealing (RTA). The recipes used for preparing the solutions by sol-gel process are 93SiO2:7TiO2:20AlO1.5:×ErO1.5 (x = 0.5, to 1 and 2). The fluorescence spectra and lifetimes of the planar waveguides were measured under the excitation of 514 nm wavelength from an Ar+ laser. The lifetimes of 3.80 ms, 3.07 ms and 1.59 ms were obtained for 0.5 mole, 1.0 mole and 2.0 mole of Er3+ content planar waveguides respectively. The decay mechanism and the factors that influence the lifetime of the sol-gel planar waveguides have been analyzed.
|Original language||English (US)|
|Number of pages||6|
|Journal||Proceedings of SPIE - The International Society for Optical Engineering|
|State||Published - 2000|
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics