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We propose and simulate a novel integrated thresholder based on nonlinear silicon microring resonators. By interfering the complementary effects of two resonators, the proposed device achieves a sharp threshold with flat one- and zero-levels.
We experimentally investigate and characterize the improvement in thresholding capability of a compact highly Ge-doped nonlinear interferometer-based all-optical thresholder using optical offset spectral filtering. The thresholder we study has an in-loop nonlinearity requirement lower than that of a classical nonlinear loop mirror scheme. Therefore, only 15 m of nonholey silica-based fiber is used...
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