Abstract
We have proposed and investigated micro-ring add-drop switch and M-Z interferometric element for on-chip router applications based on silicon hybrid plasmonic waveguide. The proposed silicon hybrid plasmonic waveguide possesses lower propagation loss compared with conventional plasmonic metal-insulator-metal waveguide. By employing this low loss waveguide, it is found that the proposed ring add-drop switch possesses high transmission efficiency (−1 dB), and the extinction ratio can be as high as 30 dB at $1.556~\mu \text{m}$ . In addition, the transmission efficiency of drop port for the M-Z interferometric element can be −1.15 dB at $1.55~\mu \text{m}$ . The designed elements are essential for the on-chip router in optical interconnect.
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