Fiber Simulator

Application ID: 30421

The transmission speed of optical waveguides is superior to microwave waveguides because optical devices have a much higher operating frequency than microwaves, enabling a far higher bandwidth. Single-mode step-index fibers are used for long-haul (even transoceanic) communication, whereas both graded-index and step-index multimode fibers are used for short-distance communication, for example, within institutions and university campuses and buildings.

For almost all commercial optical fiber types, the design consists of a concentric layer structure with the inner layer(s) forming the core and the outer layer(s) forming the cladding. Since the core has a higher refractive index than the cladding, guided modes can propagate along the fiber.

The Optical Fiber Simulator app performs mode analyses on concentric circular dielectric layer structures. Each layer is described by an outer diameter and the real and imaginary parts of the refractive index. The app can be used for analyzing both step-index fibers and graded-index fibers. These fibers may have an arbitrary number of concentric circular layers.

This application example illustrates applications of this type that would nominally be built using the following products: