Stimulated Brillouin Scattering Gain in Optical Fibers
Application ID: 143691
Stimulated Brillouin Scattering (SBS) describes a nonlinear interaction between light and sound. In optical fibers, SBS can be detrimental for power or communication purposes, but can be leveraged for sensing applications.
The SBS gain spectrum quantifies the optic-acoustic mode interaction and is useful for fiber design. This application demonstrates how to compute the SBS gain spectrum using overlap integrals between the fundamental optical mode and the propagating acoustic modes. The model is inspired by numerical results provided in a reference.
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 Specification Chart 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.