The material system for this example is AlGaAs. For all other electro-optic simulations, the feature described in this tutorial should be used. If the system you want to model conforms to this specific case, and information about electrode impedance is not required, you might want to consider the Electrode Region feature described in Lesson 14: Mach-Zehnder Interferometer switch. See Lesson 14: Mach-Zehnder Interferometer switch. This legacy feature is specialized to three coplanar electrodes when used on diffused electrodes in lithium niobate. OptiBPM has another, older, electro-optic module. This mounting exposes the AlGaAs cladding layer to air, and the Backside electrode is evaporated there. This waveguide is a ‘Substrate-Removed’ design, so the cladding is BCB, a polymer used to glue the waveguide to another substrate, not shown. įigure 1: This is Fig.2 of Reference 1, drawn upside down. In this lesson, this waveguide is created, a potential is applied to the electrodes, and the results are compared to Reference. The waveguide design of Reference is shown in Figure 1 below. This lesson shows how to make a 3D simulation in a material modified by the linear electro-optic effect (Pockels Effect).
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