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Abstract

A switch-over device is disclosed for selectively switching a linearly polarized input laser beam to a first output laser beam or to a second output laser beam. The switch-over device includes a primary optical switch-over element having a primary optical element for selectively rotating the polarization direction of the input laser beam and a downstream primary polarization-dependent reflector which guides the input laser beam depending on its polarization direction to a first course of ray or to a second course of ray. In each of the two courses of ray, a further optical switch-over element is respectively provided which includes a secondary optical element for selectively rotating the polarization direction of the respective laser beam and a secondary polarization-dependent reflector which guides the respective laser beam depending on its polarization direction to an output laser beam. Furthermore, a laser machining device is disclosed, including a laser beam switch-over device as mentioned above.

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First Claim