Challenges in industrial applications of diffractive beam splitting

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Diffractive beam splitting elements are typically designed for replicating beams at positions in the spatial spectrum and with predefined relative weights. There is a growing number of industrial applications for diffractive beam splitters. Many of these applications raise special requirements to the design process, which are considered in this work. Examples are the design of tolerancing optimized beam splitters, the limitation of the maximum intensity of noise orders, the design technique for allowing arbitrarily positioned signal orders, and the design of non-paraxial beam splitters.