Abstract
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 and an efficiency of can be achieved using a pump power of in a long Si-nc slot waveguide with slot width of , slab width of , and height of .
© 2011 Optical Society of America
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