Holo/Or’s innovation has once again enhanced the performance of their diffractive optical element (DOE) HM (homogeniser, also known as a diffuser) series with the HH (high homogeneity) series, and customer feedback has been unequivocal. The HH homogeniser consists of two diffractive patterns, one on each side of the substrate whereas the HM homogeniser has just one pattern on one face.
These high performance DOE homogenisers are designed to generate a well-defined beam shape, i.e. square, round or any other choice of user, with a statistically uniform intensity profile.
The homogenisers can work with either singlemode (SM) or multimode (MM) laser beams, but incoherent mode overlap further increases output homogeneity making the homogeniser product an optimum solution for homogenised multimode beams. For SM lasers, the beam shaping/flat-top product line remains the optimum solution for absolute pixel-to-pixel beam uniformity.
The homogeniser series can be designed for a large range of diffusion angles, and for any wavelength in UV-FIR (10.6 µm) spectrum.
Other features include high damage threshold and high tolerance to misalignment and input beam quality.
