Silicon based directional coupler

[Mubarak Ali]

Hi..

I have designed a SoI waveguide. I plan to use this waveguide to construct the directional coupler based on PIN configuration. How to create p-type and n-type silicon segment so that we can form electrode contact or any other method is available to create and use SOI waveguide though electro-optic control.

[Steve Dods]

Optiwave software does not model the electrical properties of semiconductors and will not model electrical contact problems, however, if the p or n doping level is high enough, the doped Si has negligible resistance. One can model the highly doped regions as an electric conductor, as shown in OptiBPM_Tech_Background_and_Tutorials.pdf, Lesson 10: Electro-Optic Modulator. In Lesson 10, the highly doped regions are modelled as perfect electrical conductors and the static electric field external to the conductors is found and allowed to modify the semiconductor optical properties by the EO effect.

[Mubarak Ali]

Hi Steve Dods.. Thank you for your sincere reply.

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