Laser beam shaping allows for the modification of a laser beam’s geometry and energy distribution. This technique often optimizes numerous processes, both in high-power lasers (cutting, welding, hardening, etc.) and in pulsed lasers (micromachining, surface texturing and functionalization, etc.).
There are many beam shaping techniques, and Novika has already demonstrated the potential of this technique through the use of diffractive optical elements (DOEs) and wavefront modification (SLM: Spatial Light Modulation).
Novika partnered with Cailabs, a company located in Rennes, France, specializing in the manufacture of laser beam shaping modules, to test the CANUNDA-PULSE module.
This module uses a patented reflective technology called MPLC (Multi-Plane Light Conversion), enabling a conversion efficiency exceeding 90%.
The tested module enables the shaping of a square beam with uniform energy distribution (Top Hat). Coupled with a femtosecond laser source, Novika has demonstrated the possibility of creating riblets on stainless steel. This texture, inspired by sharkskin, improves flow and reduces turbulence. Depending on the machining orientation, we obtain pyramidal geometries or flat-bottomed cavities. Beam shaping also reduces machining time and results in highly controlled geometry, thus enabling the transfer of this functionality to industry.
