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  • Title: Design and analysis of a phase modulator based on a metal-polymer-silicon hybrid plasmonic waveguide.
    Author: Sun X, Zhou L, Li X, Hong Z, Chen J.
    Journal: Appl Opt; 2011 Jul 10; 50(20):3428-34. PubMed ID: 21743549.
    Abstract:
    A plasmonic-hybrid-waveguide-based optical phase modulator is proposed and analyzed. The field enhancement in the low-index high-nonlinear polymer layer provides nanoscale optical confinement and a fast optical modulation speed. At 2.5 V drive voltage, a π phase shift can be obtained for a 13-μm-long plasmonic waveguide. Because of its small capacitance and parasitic resistance, the modulation bandwidth can reach up to 100 GHz with a low power consumption of ∼9 fJ/bit. The plasmonic waveguide is connected to a silicon wire waveguide via an adiabatic taper with a coupling efficiency of ∼91%. The phase modulator can find potential applications in optical telecommunication and interconnects.
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