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Dispersion engineering of a silicon nanocrystal-based slot waveguide for broadband wavelength conversion
LIU Qiang,GAO Shiming * #
Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education of China （No.No. 20070335118）
Opened online:14 February 2011
Accepted by: none
Citation: LIU Qiang,GAO Shiming.Dispersion engineering of a silicon nanocrystal-based slot waveguide for broadband wavelength conversion[OL]. [14 February 2011] http://en.paper.edu.cn/en_releasepaper/content/4407158
 
 
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.
Keywords:Four-wave mixing;wavelength conversion;slot waveguides;dispersion engineering
 
 
 

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