Diffractive Beam Shaper

They also allow you to realize uniform performance for a specific range at a defined distance from the light source.

Diffractive beam shaper.

Diffractive diffusers are therefore ideal for laser applications in which a specific laser beam shape is required similarly to refractive homogenizers. A diffractive beam shaper allows you to modify the intensity and phase profiles of spatially coherent lasers. Beam shaper is a diffractive optical element that modifies the intensity distribution of the beam. Holo or diffractive beam shapers are diffractive optical elements doe that transform laser beams with a nearly gaussian profile into a defined 2d shape with uniform intensity distribution at the focal point of a lens.

Through in phase manipulation of the input beam you can achieve virtually limitless and most importantly speckle free intensity profiles in the output beam. These diffractive beam shapers are available in two types top hat or stable top hat. A top hat beam shape r also known as flat top beam shaper is the high end option applicable for laser systems that use single mode low m 2 laser beams typically m 2 1 5. A flat top laser beam shaper is a diffractive optical element doe that transforms the gaussian beam into a flat top beam with uniform intensity inside a well defined shape with pre designed angular dimensions and a.

However in contrast with the beam splitter these beams overlap and interfere generating a new homogenized distribution. The uniform spot enables equal treatment to a surface excluding over under exposure of specific areas. Input beam diameter and profile have to be exactly right.