Erbium-Activated Silica-Titania Planar Waveguides

被引：0
|
作者：
L. Zampedri
M. Ferrari
C. Armellini
F. Visintainer
C. Tosello
S. Ronchin
R. Rolli
M. Montagna
A. Chiasera
S. Pelli
G.C. Righini
A. Monteil
C. Duverger
R.R. Gonçalves
机构：
来源：
Journal of Sol-Gel Science and Technology | 2003年 / 26卷
关键词：
silica-titania; erbium; planar waveguides; dip-coating; spectroscopic properties;
D O I：
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学科分类号：
摘要：
(100 − x)SiO2-(x)TiO2-ErO3/2 planar waveguides, with 7 ≤ x ≤ 20 have been prepared by sol-gel route using the dip-coating technique. The thickness of the films was optimized to support a single propagating mode at 1550 nm, with a confinement coefficient higher than 0.75. The process of densification of the gel and the devitrification with the growth of TiO2 nanocrystals were studied by Raman scattering. Devitrification is important only for x ≥ 15, but it was not possible to obtain full densification of the samples, even at the lowest TiO2 content, without the appearance of nanocrystals.
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页码：1033 / 1036
页数：3
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