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A Fiber Laser Coupler

A fiber laser and coupler technology, which is applied in the coupling of optical waveguides, clad fibers, multi-layer core/clad fibers, etc., can solve the problems of increasing use cost and system complexity, and achieve the effect of simple structure

Active Publication Date: 2020-06-23
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to obtain beams with different beam modes, in practical applications, complex spatial optical transformations are required, requiring each beam to correspond to a laser, which greatly increases the cost of use and system complexity

Method used

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  • A Fiber Laser Coupler
  • A Fiber Laser Coupler
  • A Fiber Laser Coupler

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] At present, the basic structure of a fiber laser mainly includes two parts: the main body of the laser and the laser transmission system. Among them, the laser transmission system mainly includes two parts, the energy transmission fiber and the output head, also known as the laser transmission cable. In actual use, the laser beam generated by the laser can be dir...

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Abstract

The invention provides a fiber laser coupler, comprising: a laser input optical cable, a laser shaping coupling device, and a multi-beam mode energy transmission fiber; a multi-beam mode energy transmission fiber includes: a circular fiber core and a ring fiber core, each ring fiber core It is coaxial with the circular fiber core; a fluorine-doped layer is arranged between the circular fiber core and the ring-shaped fiber core, and a fluorine-doped layer is also arranged between the adjacent ring-shaped fiber cores; the adjustable collimating lens group of the laser shaping coupling device and the The adjustable focus lens group can move horizontally along the direction of the laser beam in the housing of the laser shaping coupling device; the laser shaping coupling device is used to couple the laser beam input from the laser input cable into different cores in the multi-beam mode energy transmission fiber , to obtain the output laser beams of different beam modes. The fiber laser coupler provided by the embodiment of the present invention can independently realize real-time switching between different beam modes by combining the laser shaping coupling device with different core structures of multi-beam mode energy transmission fibers.

Description

technical field [0001] The present invention relates to the technical field of fiber lasers, and more particularly, to a fiber laser coupler. Background technique [0002] With the increasing application of fiber lasers in civil industry, defense industry, and medical industry, fiber laser technology has also developed rapidly in recent years, especially high-power fiber lasers have shown unique advantages in the field of industrial processing. At present, it has been widely used in the cutting of metal sheets, but at the same time it has shown great potential in welding, cladding, cleaning and other fields. However, with the increase of the fields covered by the application of fiber lasers, more requirements are put forward for the diversity of its beam modes. [0003] At present, the output beam modes of most fiber lasers on the market are basically Gaussian or Gaussian-like, but the application range of Gaussian or Gaussian-like beams is extremely limited. For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/036G02B6/32G02B27/09G02B7/02
CPCG02B6/036G02B6/32G02B27/0955G02B27/0927G02B7/023G02B5/001G02B6/002
Inventor 沈翔闫大鹏李榕祝启欣黄中亚施建宏汤立磊赵文利雷星李成
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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