Generation of multiple laser pulses by superposition of laser radiation

摘要

The invention relates to a device and a method for generating superimposed laser radiation. It is an object of the invention to provide a possibility for generating laser pulses for material processing in burst mode with high quality based on the principle of beam combination. For this purpose, the invention proposes a device with at least one laser (1, 14, 15), which generates laser radiation, - a combination element (4), the laser radiation supplied to the combination element (4) via at least two spatially separate input beam paths in an output beam path ( 9) superimposed, - a in the output beam path (9) arranged coupling optics (10), - an optical waveguide (11), wherein the coupling optics (10) in the Ausgangsstrahlweg (9) superimposed laser radiation into the optical waveguide (11) coupled to the input side and wherein the optical waveguide (11) leads the laser radiation mainly in a fundamental mode, and- a coupling-out optical system (12) which decouples the laser radiation from the optical waveguide (11) at its output side.