Abstract
The performance of wavelength conversion based on nondegenerate four-wave
mixing (FWM) with two pumps is theoretically evaluated in a silicon nanowire
waveguide. A theoretical model is developed to take into the limitations of
nonlinear loss parameters on conversion bandwidth, efficiency, and
uniformity. Analysis shows that the conversion bandwidth of two-pump
nondegenerate FWM is >30% broader than the conversion bandwidth of the degenerate FWM
without compromising the conversion efficiency under the same pump power
level. Also the results indicate that the improvement originates from
efficient phase matching over broader bandwidth range due to two-wavelength
pumps.
© 2010 IEEE
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