Finite-element modeling of nonlinear Mach-Zehnder interferometers based on photonic-crystal waveguides for all-optical signal processing

被引：29
|
作者：
Fujisawa, T [1 ]
Koshiba, M [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Div Media & Network Technol, Sapporo, Hokkaido 0608628, Japan
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2006年 / 24卷 / 01期
关键词：
finite-element method; Mach-Zehnder interferometer; optical Kerr effect; photonic-crystal waveguide; two-photon absorption;
D O I：
10.1109/JLT.2005.860143
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A nonlinear Mach-Zehnder interformeter based on photonic-crystal waveguides is proposed and modeled by using rigorous finite-element-based numerical scheme. Guided modes of nonlinear photonic-crystal waveguides are investigated to determine a length of nonlinear arm and a switching power, and further, intensity-dependent switching characteristics of the nonlinear Mach-Zehnder interferometer, for the first time, as far as the authors know, are demonstrated. Effects of saturable nonlinearity and two-photon absorption (TPA) on switching characteristics are also taken into account.
引用
收藏
页码：617 / 623
页数：7
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