Axicon Lens Example

This is a model of a Thorlabs Axicon Lens AX2520-UV which is used in this model to convert a plane wave input beam into a ring profile. The raytrace is performed coherently using FRED’s Gaussian Beam Decomposition technique. To minimize ray errors at the center point of the conic surface a large number of rays need to be traced. In this example it was deemed that a grid of 201 x 201 is sufficient. The ring profile can be seen by plotting either the Irradiance, Energy Density or Scalar Field profile at the Image Plane.

Axicon Lens Example

Download the FRED file: FRED_AxiconLensExample2.frd