High power laser coupler and assembly method thereof
A coupler and high-power technology, applied in the laser field, can solve the problems of single laser output mode, restrict the development and influence of semiconductor lasers, and achieve the effect of improving the application scene
Active Publication Date: 2020-04-24
MAXPHOTONICS CORP
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Problems solved by technology
[0002] At present, semiconductor lasers are the most promising lasers. Because the laser output mode is too large, they cannot be widely used in applications such as high-power laser cutting, which greatly restricts the development of semiconductor lasers.
[0003] In the process of implementing the present application, the inventor found that the divergence angles of the fast axis and the slow axis of the semiconductor laser output by the semiconductor laser in the prior art are relatively large, and the light spot needs to be shaped to be coupled into the optical fiber. The high-power laser is completely coupled into the fiber with a thinner core, and can only be coupled into a thicker fiber
In addition, the fiber output type of most fiber lasers in the prior art is fixed, and its function is limited. Since the output fiber core is fixed, the laser output mode is relatively single, which affects laser cutting or welding of different plates or different thicknesses. Profile effect
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0043] Such as figure 1 As shown, the high-power laser coupler 100 provided by the embodiment of the present application includes a laser input system 20 and a laser output system 40; the laser input system 20 and the laser output system 40 are basically the same in mechanism, and are symmetrical to each other, and the two are detachable connected together.
[0044] Such as Figure 2-5 as shown, Figure 5 It is shown that the laser input system 20 incl...
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Abstract
The present application discloses a high-power laser coupler. The high-power laser coupler includes a laser input system and a laser output system; the laser input system and the laser output system are detachably connected together; the laser input system and the laser output system both adopt water-cooling heat-dissipating; the core diameter of the input optical fiber of the laser input system is different from the core diameter of the output optical fiber of the laser output system; a first collimating lens assembly is opposite to and spaced apart from a second collimating lens assembly; the first collimating lens assembly aggregates divergent light emitted by the first end cap of the first collimating lens assembly into one parallel collimated beam; the second collimating lens assemblyreceives the parallel collimated beam, aggregates the parallel collimated beam into a focused light beam; and the focused light beam is coupled into the output optical fiber through the second end cap of the second collimating lens assembly. Therefore, when the high-power laser coupler of the present invention is applied to a semiconductor laser, the change of the core diameter of an optical fiber can be realized, and the application range of the semiconductor laser can be extended.
Description
technical field [0001] The present application relates to the field of laser technology, in particular to a high-power laser coupler and an assembly method thereof. Background technique [0002] At present, semiconductor lasers are the most promising lasers. Because the laser output mode is too large, they cannot be widely used in applications such as high-power laser cutting, which greatly restricts the development of semiconductor lasers. [0003] In the process of implementing the present application, the inventor found that the divergence angles of the fast axis and the slow axis of the semiconductor laser output by the semiconductor laser in the prior art are relatively large, and the light spot needs to be shaped to be coupled into the optical fiber. The high-power laser is completely coupled into the fiber with a thinner core, and can only be coupled into a thicker fiber. In addition, the fiber output type of most fiber lasers in the prior art is fixed, and its funct...
Claims
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IPC IPC(8): G02B6/32
CPCG02B6/32
Inventor 曹际龙张浩泰李伟陶新峻邓杰蒋峰
Owner MAXPHOTONICS CORP