The structural and refractive index changes in the waveguides written by femtosecond laser in Er-doped silicate glasses

被引：3
|
作者：
Li, Yigang [1 ]
He, Zian [1 ]
Tang, Hengsheng [1 ]
Liu, Liying [1 ]
Xu, Lei [1 ]
Wang, Wencheng [1 ]
机构：
[1] Fudan Univ, Sch Informat Sci & Engn, Dept Opt Sci & Engn, State Key Lab Adv Photon Mat & Devices, Shanghai 200433, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 12-13期
基金：
中国国家自然科学基金;
关键词：
planar waveguides; laser-matter interactions; photoinduced effects; Raman spectroscopy; silicates; rare-earths in glasses; medium-range order;
D O I：
10.1016/j.jnoncrysol.2006.12.128
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Waveguides with low propagation losses were written in erbium-doped silicate glasses by tightly focused femtosecond laser pulses. Raman spectra measurements and 2-D refractive index mapping in the micro-areas near the focus were carried out. The results supported that the refractive index change induced by fs laser pulses comes from the increase of the low rank ring structures in the silicate network. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1216 / 1220
页数：5
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