We report wavelength conversion and spectral inversion using cascaded second-order nonlinearity in periodically poled LiNbO3waveguides pumped at 1.5 μm. The converter has an internal conversion efficiency of -8 dB, a conversion bandwidth of 76 nm, and a constant conversion efficiency for the 50-dB range of signal powers tested.
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Chou et al. (1999) studied this question.
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