Silicon-on-Insulator Modulator
Application ID: 148411
This tutorial demonstrates how to model a Silicon-on-Insulator (SoI) Modulator – a well-known optics device configuration that takes advantage of the free-carrier plasma dispersion effect and allows for the electrical control of the optical waveguide properties. The simulation couples the Semiconductor and Electromagnetic Waves, Frequency Domain interfaces, with the Soref–Bennett relations used to evaluate changes in carrier density and the corresponding variations in the complex-valued refractive index. As a result, alternations for the effective refractive index as well as the bias-dependent phase shift and attenuation of the device are calculated using the real part of the complex effective mode index.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Tabella delle Funzionalità and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.
