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 drive voltage, a π phase shift can be obtained for a -long plasmonic waveguide. Because of its small capacitance and parasitic resistance, the modulation bandwidth can reach up to with a low power consumption of . The plasmonic waveguide is connected to a silicon wire waveguide via an adiabatic taper with a coupling efficiency of . The phase modulator can find potential applications in optical telecommunication and interconnects.
© 2011 Optical Society of America
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