Laser beam-splitting system and method

Abstract

The invention belongs to the technical field of laser processing, and relates to a laser beam-splitting system and method. The laser beam-splitting system comprises a laser output assembly, a laser beam-splitting unit and optical fiber couplers, wherein the laser beam-splitting unit comprises a rotatable first half-wave plate and a fixedly arranged polarization selection beam splitter. The laser beam-splitting method comprises the steps as follows: an output end of the laser output assembly emits linearly polarized light; the linearly polarized light is transmitted to the laser beam-splitting unit; the first half-wave plate deploys the linearly polarized light and then transmits the linearly polarized light to the polarization selection beam splitter; the polarization selection beam splitter divides the linearly polarized light deployed by the first half-wave plate into two laser branch beams; and the two laser branch beams are collected into the corresponding optical fiber couplers respectively and are output to a processing station focusing lens through coupling of the optical fiber couplers. According to the laser beam-splitting system and method, laser energy of the laser branch beams can relatively change continuously, so that power adjustment on a beam-splitting light path is achieved and adjustment is simple and fast.

Description

technical field [0001] The invention belongs to the technical field of laser processing, in particular to a laser spectroscopic system and method. Background technique [0002] High-power laser technology has been widely used in the laser processing industry, including cutting, welding, marking, etc. In the actual production process, according to the different materials of the workpiece to be processed, the laser energy needs to be changed accordingly to meet the processing requirements. [0003] In the process of realizing the present invention, the applicant finds that there are at least the following deficiencies in the prior art: [0004] In the prior art, high-power laser beams are usually split to meet the needs of multi-station processing, but after the reflectivity of the mirror is determined, the fixed light source outputs a fixed power, and the power of the split optical path cannot be changed again; It is extremely inconvenient to adjust the power. Even if the r...

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Problems solved by technology

[0005] In order to solve the problem that the power of the splitting light path in the prior art is not easy to be continuously variable, the present invention provides a laser splitting system and method

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