Design and simulation of optical waveguide for electro-optic modulator

Abstract

Optical waveguide is the backbone of an electrooptic modulator (EOM). In this paper an optical waveguide design is proposed for EOM. The proposed optical waveguide provide better impedance and velocity matching to the electrode as compare to the previous work done on electro-optic modulator. In addition to this, the push pull technique and polymer integration used in the design of EOM reduces required drive voltage and increase the speed of operation. Travelling wave structure is used in the proposed design, which is proved to be advantages for EOM as there is no limitation on modulator speed due to resistance and capacitance as in lumped element design. The electrode parameters are analysed with the help of an electro-optic solver tool.