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Fiber laser and laser material processing system

A fiber laser, fiber laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of complex manufacturing coupling process, high implementation cost, ring-core multi-clad fiber, etc., to achieve cross-sectional characteristics, The production process is simple and the effect of change is achieved

Pending Publication Date: 2019-04-26
SHENZHEN JPT OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fiber laser and a laser material processing system including the fiber laser, to solve the problem of changing the beam profile characteristics in the prior art to a certain extent, which needs to use a ring-core multi-clad fiber, and manufacture The technical problems of complex coupling process and high implementation cost

Method used

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  • Fiber laser and laser material processing system
  • Fiber laser and laser material processing system
  • Fiber laser and laser material processing system

Examples

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Effect test

Embodiment 1

[0064] Please refer to figure 1 and figure 2 As shown, a fiber laser is provided for this embodiment, and seven cylindrical light guide columns 4 are closely arranged in a circle, that is, there is one light guide column 4 in the middle, and the other six light guide columns 4 surround the middle light guide column 4 tightly in the circumferential direction. Arrangement, the pigtails of the seven light guide columns 4 can be connected to different fiber laser modules 1, or some of the pigtails of the light guide columns 4 can be connected to a certain fiber laser module 1, and the laser power of each fiber laser module 1 can be respectively The control can also control several or all of them synchronously, so as to realize the change or control of the characteristics of the output spot.

[0065] For example, the output laser power of the middle light guide column 4 can be individually controlled, and at the same time, the output laser power of the six light guide columns 4 i...

Embodiment 2

[0067] refer to image 3 and Figure 4 As shown, another fiber laser is provided for this embodiment, which includes three fiber laser modules 1, wherein two fiber laser modules 1 are connected to a secondary light guide column, and the other fiber laser module 1 is connected to the main light column. The fiber laser of this embodiment adds auxiliary light guide columns around or next to the main light column, which can reduce spatter and homogenize the molten pool, so the output beam of the fiber laser can effectively improve the welding effect.

Embodiment 3

[0069] refer to Figure 5 As shown, another fiber laser provided in this embodiment includes seven fiber laser modules 1 , and each fiber laser module 1 is connected to a light guide column 4 .

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Abstract

The invention discloses a fiber laser and a laser material processing system. The fiber laser includes a laser output head and a plurality of fiber laser modules, the laser output head includes a plurality of light guiding columns which are arranged in parallel in space, each light guiding column corresponds to a transmission fiber and is connected to one of the multiple fiber laser modules through the transmission fiber, and by controlling or distributing the output power of different fiber laser modules, the profile characteristics of output beams of the light guiding columns are adjusted orchanged. According to the fiber laser and the laser material processing system, through spatial arrangement of the multiple light guiding columns, the light guiding columns are connected with one ormore fiber laser modules, and the profile characteristics of the output beams are changed; and by changing the output power of the corresponding fiber laser modules, required output light spot distribution can be obtained, continuous and real-time adjustment of output light spots can be achieved, the implementation scheme is flexible and diverse, the manufacturing process is relatively simple, andthe manufacturing cost can be effectively lowered.

Description

technical field [0001] The invention relates to the field of laser material processing, in particular to a fiber laser and a laser material processing system. Background technique [0002] In laser material processing, different process applications may have different requirements for the profile characteristics of the laser output beam. In addition to the traditional Gaussian energy distribution spot, flat-top energy distribution spot, annular spot or other types of spots may be required. For example, in laser welding applications, in order to reduce spatter, homogenize the molten pool and improve the welding effect, it is necessary to add sub-beams around or next to the main beam, and even hope that the energy distribution of the main and sub-beams can be adjusted to meet different application requirements. [0003] In the prior art, one or more laser beams of the same or different wavelengths are coupled into a multi-clad optical fiber with at least one ring core by means...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/00
CPCH01S3/0071H01S3/06737
Inventor 陈建飞张承志赵崇光
Owner SHENZHEN JPT OPTO ELECTRONICS CO LTD
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