Scalable Array Fiber Output Lasers

Abstract

The invention belongs to the technical field of lasers, and particularly relates to an extensible array fiber output laser. The extensible array fiber output laser includes an electrical module, N optical module units, laser output heads corresponding to the optical module units, and a light spot positioner, wherein N is greater than and equal to 2; the optical module units are connected with the laser output heads through fibers, and the N laser output heads are arranged in the light spot positioner; the electrical module simultaneously performs the power supply and control of the N optical module units; the laser output by the laser is transmitted to the corresponding laser output heads via the fibers; the laser output heads focuses the laser to form light spots; and the light spot positioner realizes the single-row or single-column, multi-row or multi-column array arrangement of the light spots. The extensible array fiber output laser solves the problems that a conventional laser is insufficient in power, insufficient in power density, and bad in safety and reliability, can be applied to the surface modification and restoration of large workpieces, and can be applied to any high melting point material due to the higher power density.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to an expandable array fiber output laser. Background technique [0002] In the fields of mining, steel, petroleum, chemical industry, electric power, molds, agricultural machinery and other fields, a large number of heavy machinery and equipment are worn or damaged due to long-term operation, which affects the service life of the equipment. In order to prolong the service life of the equipment, or restore the operation of the damaged equipment, laser technology is often used to repair or modify the surface of metal workpieces to improve the hardness, wear resistance, corrosion resistance, fatigue resistance and other mechanical properties of the workpiece surface. [0003] Surface repair or modification of metal workpieces requires high density (~200W / mm 2 ) laser, this kind of high-density laser is technically achieved by focusing the laser emitted by the laser through a focusing ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low output power, small spot area, and low safety and reliability of existing fiber output lasers, the present invention provides an expandable array fiber output laser to achieve high-power and large-spot laser beam output and meet the needs of metal surface repair. or modification process for the actual engineering application of thousands of watts and tens of thousands of watts of lasers

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