Optical eigenmode simulation of a fiber - BeamLab

Fiber Modes

This BeamLab demo calculates the field distributions and effective refractive indices of the eigenmodes of a step-index fiber with a circular core.

BeamLab demo: fiber_modes.m

Refractive index profile of the circular step-index fiber

The following figures show the three field components of the first 4 low-order modes as field contour lines. The black lines indicate the core-cladding boundary.

Mode 1 of the circular step-index fiber

Mode 2 of the circular step-index fiber

Mode 3 of the circular step-index fiber

Mode 4 of the circular step-index fiber

About BeamLab

BeamLab is an award-winning set of simulation tools for beam propagation through optical devices and waveguides in your familiar MATLAB® environment. It offers a high flexibility in waveguide design and post-processing of any output data.