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Erbium-activated silica-zirconia planar waveguides prepared by sol-gel route
Journal article published in 2008 by
Rogeria R. Goncalves 
,
Younes Messaddeq,
Alessandro Chiasera,
Yoann Jestin,
Maurizio Ferrari ,
Sidney José Lima Ribeiro
,
Younes Messaddeq,
Alessandro Chiasera,
Yoann Jestin,
Maurizio Ferrari ,
Sidney José Lima Ribeiro
Abstract
Er(3+) doped (100-x)SiO(2)-xZrO(2) planar waveguides were prepared by the sol-gel route, with x ranging from 10 up to 30 mol%. Multilayer films doped with 0.3 mol% Er(3+) ions were deposited on fused quartz substrates by the dip-coating technique. The thickness and refractive index were measured by m-line spectroscopy at different wavelengths. The fabrication protocol was optimized in order to confine one propagating mode at 1.5 mu m. Photoluminescence in the near and visible region indicated a crystalline local environment for the Er(3+) ion. (c) 2007 Elsevier B.V. All rights reserved.