Design and analysis of coplanar waveguide optical modulator using finite element method

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)875-887
Journal / PublicationInternational Journal of Infrared and Millimeter Waves
Issue number4
Publication statusPublished - Apr 1997


An analysis is given on the finite element method (FEM) for calculating the various parameters of optical modulators and a computer program is written to solve the finite element equation. Based on this method, a Mach-Zehnder type electro-optic modulator with coplanar waveguide (CPW) electrode is designed and fabricated. When compared with the Fourier series method, small differences on the 3-dB bandwidth, characteristic impedance and half-wave voltage, etc. are obtained.

Research Area(s)

  • Coplanar waveguide, Electro-optic modulators, Integrated optics