Laser arrangement and method for enhancing the life span of optical elements in a laser arrangement

摘要

A laser arrangement has a first optical element, provided and established to convert a first laser beam having a first frequency into a second laser beam having a second frequency, wherein the second frequency is higher than the first frequency, and has a second optical element, which is transmitting for the first laser beam and reflecting for the second laser beam, and which is provided and established to reflect the second laser beam in a direction of reflection. Both the first optical element and the second optical element are movably mounted in such a way that they can be moved relative to a direction of light propagation of the second laser beam.