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Novel multi-mode pumping optical fiber beam combiner and manufacturing method thereof

A technology for pumping optical fibers and manufacturing methods, which is applied in the field of new multi-mode pumping optical fiber beam combiners and their manufacturing, can solve the problems of aging and burning of coating layers, achieve high power and reduce thermal effects

Pending Publication Date: 2017-12-26
四川思创激光科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

As the pump power increases, the heat becomes higher and higher, causing the coating layer to age and even burn

Method used

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  • Novel multi-mode pumping optical fiber beam combiner and manufacturing method thereof
  • Novel multi-mode pumping optical fiber beam combiner and manufacturing method thereof
  • Novel multi-mode pumping optical fiber beam combiner and manufacturing method thereof

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0030] see figure 2 , in one embodiment of the pre...

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Abstract

The invention relates to a novel multi-mode pumping optical fiber beam combiner and a manufacturing method thereof. The novel multi-mode pumping optical fiber beam combiner comprises an input optical fiber and an output optical fiber, and the input optical fiber is connected with the output optical fiber in a welded mode; the output optical fiber comprises a coating layer stripping section, the coating layer stripping section is divided into a first section and a second section in the length direction of the coating layer stripping section, the first section is adjacent to the input optical fiber, and a light leakage layer is arranged on the outer surface of the first section and used for filtering away laser in a fluorine-doped layer. According to the beam combiner, the surface of the coating layer stripping section is subjected to roughening treatment or sleeved with quartz glass in a melting mode so that the laser can leak from the high-refractive-index quartz glass or the rough surface, the laser in the fluorine-doped layer is filtered out, therefore the heat effect of the beam combiner is reduced, and the beam combiner can bear higher power.

Description

technical field [0001] The invention relates to the field of fiber laser technology, in particular to a novel multimode pumping fiber beam combiner and a manufacturing method thereof. Background technique [0002] With the development of laser application technology, laser beams with high power, high quality and high brightness are required in many fields such as laser weapons, material processing, space optical communication, remote sensing, lidar and photoelectric countermeasures. When a single fiber cannot meet the requirements, it is necessary to bundle single-fiber fiber lasers to obtain high power. The all-fiber bundle is to use a fiber combiner to couple the output of different fiber lasers to a single fiber output. [0003] figure 1 The structure of the traditional n×1 beam combiner ( figure 1 where n=7). Such as figure 1 As shown, the fiber combiner combines the laser output from n semiconductor lasers into a double-clad fiber through n multimode fibers, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10H01S5/04
CPCH01S5/041G02B27/1006
Inventor 孙梦至
Owner 四川思创激光科技有限公司
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