Investigation of Aberration Effects on LP Fiber Modes in the Focal Region

Fibers are widely used as sources in optical systems. Investigating the effects of the aberrations of the optical system on the propagation of the fiber modes is therefore worthwhile. In this use case, we employ a specific fiber, either step- or graded-index, as a source to generate a couple of propagating modes, and evaluate the diffraction pattern after the propagation of said modes through an aberrated optical system.