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Optical fiber coiling device applied to high-power optical fiber laser

A fiber laser and fiber coiling technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve problems such as fiber breakage, limited beam quality, unfavorable heat conduction, etc., to avoid thermal damage and stress damage, and to avoid fiber crossing , Improve the effect of beam quality

Active Publication Date: 2017-05-24
HFB PHOTONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the helical structure increases the complexity of the operation, and the additional stress may cause a gap between the optical fiber and the cylindrical heat sink, which is not conducive to heat conduction, and at the same time brings the risk of fiber breakage;
[0006] It can be seen that the above two coiling methods have structural disadvantages, and neither can ensure that the high-order mode components of the fast and slow axes of the fiber are effectively filtered out, thus limiting the further improvement of the beam quality
[0007] Since the high-power fiber laser is a relatively complex system, it is difficult to ensure that all fibers are coiled on the same plane in its structure

Method used

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  • Optical fiber coiling device applied to high-power optical fiber laser
  • Optical fiber coiling device applied to high-power optical fiber laser
  • Optical fiber coiling device applied to high-power optical fiber laser

Examples

Experimental program
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Effect test

Embodiment 1

[0024] like figure 1 — image 3 As shown, the fiber coiling device applied to high-power fiber lasers provided by this embodiment includes two first fiber setting plates 1 and second fiber setting plates 2 with the same structure and arranged at right angles, wherein the first fiber setting plate 1 is A rectangular plate arranged vertically has an optical fiber setting groove 11 formed on the front surface, or a first optical fiber setting groove 11 with the same shape and completely corresponding position is formed on the front and rear surfaces; the second optical fiber setting plate 2 is a rectangular plate arranged horizontally , a second fiber setting groove 21 is formed on the upper surface, or a second fiber setting groove 21 with the same shape and completely corresponding position is formed on the upper and lower surfaces, and the first fiber setting plate 1 is provided with a first fiber routing Holes 15, the second optical fiber setting plate 2 is provided with a s...

Embodiment 2

[0032] First define: Figure 4The front face of the vertically arranged fiber optic setting plate is the front face, and the rear end face is the rear face, Figure 5 The opposite is defined in; Figure 4 , 5 The surface of the optical fiber setting plate set in the middle level is the upper surface, and the bottom surface is the lower surface.

[0033] like Figure 4 — Figure 5 As shown, the fiber coiling device applied to a high-power fiber laser provided in this embodiment includes a first fiber setting plate 1 to a fourth fiber setting plate 4 arranged in a cross; wherein the first fiber setting plate 1 and the third fiber setting plate 3 vertically arranged up and down, and the structure of the first optical fiber setting plate 1 and the third optical fiber setting plate 3 are symmetrical; the second optical fiber setting plate 2 and the fourth optical fiber setting plate 4 are arranged horizontally front and back, and the upper surface Only two linear optical fiber...

Embodiment 3

[0038] First define: Image 6 , 7 The front end face of the vertically arranged optical fiber setting plate is the front face, and the rear end face is the rear face; Image 6 The surface of the optical fiber setting plate set in the middle level is the upper surface, and the bottom surface is the lower surface, Figure 7 The opposite is defined in .

[0039] like Image 6 , Figure 7 As shown, the fiber coiling device applied to a high-power fiber laser provided by this embodiment includes a first fiber setting plate 1 to a seventh fiber setting plate 7; wherein the second fiber setting plate 2 and the sixth fiber setting plate 6 are arranged on the same In the horizontal plane; the fourth optical fiber setting plate 4 and the seventh optical fiber setting plate 7 are arranged in the same horizontal plane, and the fourth optical fiber setting plate 4 and the seventh optical fiber setting plate 7 are respectively located on the second optical fiber setting plate 2 and the ...

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Abstract

The invention provides an optical fiber coiling device applied to a high-power optical fiber laser. The device comprises at least two optical fiber arrangement boards identical in structure and placed at a right angle relative to each other. The surface of each optical fiber arrangement board is provided with an optical fiber arrangement groove and a fiber feeding hole. According to the technical scheme of the invention, by means of the optical fiber coiling device applied to the high-power optical fiber laser, the transformation of the optical fiber winding direction and the coiling plane in the three-dimensional space can be realized. Meanwhile, the crossing phenomenon of optical fibers is avoided. Each optical fiber is enabled to be tightly attached into the optical fiber arrangement groove of each optical fiber arrangement board, so that the good heat dissipation effect is realized. On one hand, the effective refrigeration effect of optical fibers and the reasonable bending layout of optical fibers are ensured, so that the thermal damage and the stress damage of optical fibers are avoided. On the other hand, optical fibers are artfully coiled in tow vertical planes. Therefore, on the premise that the heat dissipation and fixation effects of optical fibers are ensured, the high-order mode in optical fibers is effectively filtered out. As a result, the beam quality of the high-power optical fiber laser is improved.

Description

technical field [0001] The invention belongs to the technical field of optical fibers and lasers, in particular to an optical fiber coiling device applied to high-power optical fiber lasers. Background technique [0002] Fiber laser is a laser with optical fiber as gain medium and optical transmission equipment. As a new generation of lasers that has attracted much attention, fiber lasers have the advantages of high output power, high conversion efficiency, low energy consumption, and high beam quality due to the high doping, high conversion efficiency, and superior waveguide structure of the gain fiber. But at the same time, high output power also produces higher heat. Although the optical fibers used in high-power fiber lasers generally have a long length, which increases the heat dissipation area to a certain extent, but because the optical fiber itself is an extremely thin fiber structure, the heat dissipation area is small, so it is necessary to provide heat for the op...

Claims

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Application Information

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IPC IPC(8): H01S3/067
CPCH01S3/06704
Inventor 房强史伟许阳杜俊举
Owner HFB PHOTONICS CO LTD