Systems and methods for multiple-beam laser arrangements with variable beam parameter product

Abstract

In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

Description

[0001] related application [0002] This application claims the benefit and priority of U.S. Provisional Patent Application No. 61 / 944,989, filed February 26, 2014, and U.S. Provisional Patent Application No. 61 / 986,237, filed April 30, 2014, the entire disclosure of which is passed This reference is hereby incorporated. technical field [0003] In various embodiments, the present application relates to a laser system, and more particularly to a laser system having a controllable beam parameter product. Background technique [0004] High power laser systems can be used in many different applications such as welding, cutting, drilling and material processing. Such a laser system usually includes a laser emitter and an optical system. The laser light emitted from the laser emitter is coupled into an optical fiber (or "fiber" for short), and the optical system focuses the laser light from the optical fiber onto the workpiece to be processed. Optical systems are generally des...

AI Technical Summary

Problems solved by technology

In order to change the BPP of a laser system, the output optics or fiber optics must be frequently replaced with other components and / or rearranged, a time-consuming and expensive process that can even inadvertently damage the delicate optical components of the laser system. damage

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