Polarization insensitive wavelength conversion of 40 Gb/s DPSK signals in a silicon germanium waveguide

We demonstrate polarization insensitive FWM-based wavelength conversion of 40Gb/s DPSK signals in a SiGe waveguide, with 0.42-dB polarization-dependent loss. A 1.5-dB Dower nenaltv was measured at a BER of 10
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