Thermally induced dephasing of high power second harmonic generation in MgO: LiNbO3 waveguides

被引：3
|
作者：
Li, Guohui
Xu, Xinye [1 ]
机构：
[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2011年 / 9卷 / 12期
基金：
中国国家自然科学基金;
关键词：
HIGH-AVERAGE-POWER; DOPED CONGRUENT; FIBER LASER; CRYSTAL;
D O I：
10.3788/COL201109.121901
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
High power second harmonic generation (SHC) in MgO-doped LiNbO3 waveguides is investigated using a three-dimensional (3D) coupled thermo-optical model. Simulations performed for a 1111.6-nm fundamental laser show the influence of the absorptions and the thermally induced dephasing on the conversion efficiencies of the different waveguides. The onset of the thermally induced dephasing effect for each waveguide is also indicated. As a result of high light intensity in the waveguide, nonlinear absorptions are identified as the possible main factors in efficiency losses in specific cases.
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页数：4
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