A fiber laser beam combiner

Abstract

The invention provides a fiber laser beam combiner which comprises a laser shaping device, a laser beam combining device, a multi-beam output fiber and laser emitters output different wavelengths of laser. The laser shaping device comprises an adjustable collimating lens pair, a shaping lens and at least one adjustable focusing lens pair, the adjustable collimating lens pair is arranged in the output side of a laser emission module, and the adjustable focusing lens pair is arranged in the input side of a multi-beam energy transfer fiber. The laser beam combining device combines multiple received laser beams, and inputs the combined laser beam into a specific fiber core in the multi-beam energy transfer fiber. The multi-beam output fiber comprises a circular fiber core positioned in the axial center and at least one annular fiber core, and each annular fiber core is coaxial with the circular fiber core. The fiber laser beam combiner uses the laser beam combining device to combine different wavelengths of laser beams, and the outer laser beam is high-quality.

Description

technical field [0001] The present invention relates to the technical field of fiber lasers, and more specifically, to a fiber laser beam combiner. Background technique [0002] With the increasing application of fiber lasers in civil industry, defense industry, and medical industry, fiber laser technology has also developed rapidly in recent years, especially high-power fiber lasers have shown unique advantages in the field of industrial processing. At present, it has been widely used in the cutting of metal sheets, but at the same time it has shown great potential in welding, cladding, cleaning and other fields. However, with the increase of the fields covered by the application of fiber lasers, more requirements are put forward for the diversity of its beam modes. [0003] At present, the beam modes output by standard fiber lasers are basically Gaussian or Gaussian-like, but the application range of Gaussian or Gaussian-like beams is extremely limited. For example, the ...

AI Technical Summary

Problems solved by technology

In order to obtain beams with different beam modes, in practical applications, complex spatial optical transformations are required, requiring each beam to correspond to a laser, which greatly increases the cost of use and system complexity

However, when two or more laser beams are required to process the same material, there is no corresponding laser that can achieve

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