Vortex DOEs for Laser Material Processing
Diffraktive Optical Elements
A laser beam profile looking like a donut - formed by a diffractive optical Vortex element.
December 11, 2012
Lasers have Gaussian-shaped beam profiles; this is often hindering in material processing. Diffractive optical elements
are used to convert them into a uniform beam profile. Tophats are usually requested for this purpose; however, LASER COMPONENTS
recommend using Vortex DOEs.
Vortex DOEs produce a donut-shaped beam profile from a TEM00 laser beam. The “intensity hole” created causes the outside
edges to become steeper; this is particularly advantageous in welding, cutting, and drilling because the intensity in the
beam center only contributes marginally to the process.
The Vortex DOEs from Holo/OR are flexible and easy to use. Unlike tophats, they can be used at any beam diameter and
working distance. In addition, the Vortex elements are not sensitive to adjustment; that is to say, it is only necessary
to hold the lateral position.
Further product information:
Diffractive Optical Elements for Beam Shaping
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