Design and analysis of enhanced second harmonic generation in AlGaAs/AlOx microring waveguide

被引：8
作者：
Gandomkar, Mojtaba [1 ]
Ahmadi, Vahid [1 ]
机构：
[1] Tarbiat Modares Univ, Dept Elect & Comp Engn, Tehran, Iran
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 10期
关键词：
D O I：
10.1364/OE.19.009408
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we propose and analyze a multilayer AlGaAs/AlOx waveguide structure for efficient microring based second harmonic generation (SHG). Quasi phase matching (QPM) and resonance conditions can be satisfied by designing the width of the waveguide. Linewidth of SHG in microring resonators is formulized and investigated and it is shown that linewidth of wavelength conversion is in the range of subnanometer. Dependence of efficiency of SHG on input power and the loss is investigated for various conditions like single and double microring structures, different coupling coefficients and radii. In low loss condition, larger radius of microring needs lower input power for efficient SHG. Our proposed double microring structure provides 100% conversion efficiency with lower input power as compared with a single microring structure. (C) 2011 Optical Society of America
引用
收藏
页码：9408 / 9418
页数：11
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