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We propose an approach to implementing wavelength- and time-selective optical switching, dropping and swapping based on the sum-frequency generation (SFG) or cascaded sum- and difference-frequency generation (cSFG/DFG) in a periodically poled lithium niobate (PPLN) waveguide. Analytical solutions are derived, showing the parametric depletion effect for… (More)
Using the Engset traffic model, we demonstrate conflicting effects of add/drop ratio on performance of the access networks and that of the core networks. This will have important design implications to future transparent photonic networks.