Bitterli, R.Scharf, T.Herzig, H. P.Noell, W.de Rooij, N.Bich, A.Roth, S.Weible, K. J.Voelkel, R.Zimmermann, M.Schmidt, M.2010-07-292010-07-292010-07-29201010.1364/OE.18.014251https://infoscience.epfl.ch/handle/20.500.14299/51929WOS:000279009900101We present a new approach of beam homogenizing elements based on a statistical array of concave cylindrical microlens arrays. Those elements are used to diffuse light in only one direction and can be employed together with fly’s eye condensers to generate a uniform flat top line for high power coherent light sources. Conception, fabrication and characterization for such 1D diffusers are presented in this paper.laser beam shapingoptical design and fabricationmicrostructure fabricationtext::journal::journal article::research article