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Wavelength conversion in highly nonlinear silicon–organic hybrid slot waveguides

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Abstract

Wavelength conversion based on four-wave mixing (FWM) in a silicon–organic hybrid slot waveguide is theoretically investigated in the telecommunication bands. Compared with vertical slot waveguides, the horizontal slot waveguide structure exhibits much flatter dispersion. The maximum nonlinearity coefficient γ of 1.5×107W1km1 and the minimum effective mode area Aeff of 0.065μm2 are obtained in a horizontal slot waveguide with a 20-nm-thick optically nonlinear layer by controlling the geometric parameters. The wavelength conversion efficiency of 7.45 dB with a pump power of 100 mW in a 4-mm-long horizontal slot waveguide is obtained. This low power on-chip wavelength convertor will have potential applications in highly integrated optical circuits.

© 2014 Optical Society of America

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