Dispersion engineering of a silicon-nanocrystal-based slot waveguide for broadband wavelength conversion

被引：49

作者：

Liu, Qiang ^{[1
]}

Gao, Shiming ^{[1
]}

Li, Zhiqiang ^{[1
]}

Xie, Yanqiao ^{[1
]}

He, Sailing ^{[1
]}

机构：

[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310058, Zhejiang, Peoples R China

来源：

APPLIED OPTICS | 2011年 / 50卷 / 09期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

NANOWAVEGUIDES; PERFORMANCE; DESIGN; CHIP;

D O I：

10.1364/AO.50.001260

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A proposal for broadband wavelength conversion using four-wave mixing is presented based on a slot waveguide with silicon nanocrystals (Si-nc's) as the optical nonlinear material. The dispersion of the waveguide is engineered to realize a flat dispersion as well as a small effective mode area for better nonlinear interaction by optimizing the waveguide dimensions. The conversion performance is synthetically analyzed and numerical results show that a bandwidth of over 400 nm and an efficiency of -2.38 dB can be achieved using a pump power of 150 mW in a 4 mm long Si-nc slot waveguide with slot width of 50 nm, slab width of 310 nm, and height of 305 nm. (C) 2011 Optical Society of America

引用

页码：1260 / 1265

页数：6

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