Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide

We experimentally demonstrate polarization-insensitive all optical wavelength conversion of a 10-Gb/s DPSK data signal based on four-wave mixing in a silicon waveguide with an angled-pump scheme. Dispersion engineering is applied to the silicon waveguide to obtain similar four-wave mixing conversion performances for both the TE and TM modes. Bit-error rate measurements are performed and error-free operation is achieved. We also demonstrate polarization-insensitive wavelength conversion with a large separation between the idler and signal using a dual-pump configuration. ©2012 Optical Society of America OCIS codes: (060.1155) All-optical networks; (190.4380) Nonlinear optics, four-wave mixing; (190.4390) Nonlinear optics, integrated optics; (130.7405) Wavelength conversion devices. References and links 1. C. M. Gallep, O. Raz, and H. J. S. 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