Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By X. Zhang, S. Gao, and S. He

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The broadband wavelength conversion based on four-wave mixing in a silicon nanowire waveguide is theoretically investigated by taking into account the influence of the waveguide loss and free-carrier absorption on the phase-matched condition. The lossy wavelength conversion is compared with the lossless one in terms of conversion efficiency and bandwidth. The size of the silicon-oninsulator nanowire waveguide is optimized to be 400nm × 269nm for broadband wavelength conversion by realizing a flattened dispersion. The pump wavelength is also optimized to 1538.7nm in order to further enhance the conversion bandwidth. A 3-dB conversion bandwidth of over 280nm is achieved in the optimized waveguide with the optimized pump wavelength.

X. Zhang, S. Gao, and S. He, "Optimal design of a silicon-on-insulator nanowire waveguide for broadband wavelength conversion," Progress In Electromagnetics Research, Vol. 89, 183-198, 2009.

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