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Fiber laser and high-power pump beam combiner thereof

A high-power, beam combiner technology, applied in the laser field, can solve problems such as heat generation, achieve the effect of ensuring coupling efficiency and improving light transmission efficiency

Active Publication Date: 2016-05-11
HANS LASER TECH IND GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to the limitation of the pump source 110, each branch of the traditional pump combiner 120 is limited to 25W-35W, because the light transmission efficiency of the pump combiner 120 is only 90% to 95%, and the loss part is converted into heat energy , and too high power will make it seriously hot

Method used

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  • Fiber laser and high-power pump beam combiner thereof
  • Fiber laser and high-power pump beam combiner thereof
  • Fiber laser and high-power pump beam combiner thereof

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Embodiment Construction

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention relates to a high-power pump beam combiner, which comprises a glass tube, an input fiber and an output fiber, wherein the glass tube is in a hollow structure; the input fiber passes through the glass tube; one end of the glass tube and one end of the input fiber are subjected to fusing and tapering to form a beam structure tapering section; and the output fiber is connected with the tapering section. The output fiber comprises a fiber core and a wrapping layer wrapping the fiber core. The diameter of the tapering section is smaller than the diameter of the fiber core. The invention also provides a fiber laser using the high-power pump beam combiner. According to the fiber laser and the high-power pump beam combiner thereof, one end of the glass tube and one end of the input fiber are subjected to fusing and tapering to form the tapering section, so that the numerical aperture of the input fiber is allowed to be smaller than or equal to the numerical aperture of the output fiber, coupling efficiency is effectively ensured, and light output efficiency is improved.

Description

technical field [0001] The invention relates to laser technology, in particular to a fiber laser and a high-power pump beam combiner thereof. Background technique [0002] Due to the advantages of good beam quality and high conversion efficiency, fiber lasers are favored by domestic and foreign practitioners, and have become one of the hottest research hotspots in the laser industry. [0003] In fiber lasers, see figure 1 , the fiber laser 100 includes a pump source 110 , a pump beam combiner 120 , a total reflection mirror 130 , a gain fiber 140 , and a partial reflection mirror 150 . The pump beam combiner 120 is a key component for realizing the high-power fiber laser 100 . The pump beam combiner 120 is used to couple the output of laser light transmitted by multiple pump sources 110 to the output of one optical fiber, so as to increase the output power. [0004] Due to the limitation of the pump source 110, each branch of the traditional pump combiner 120 is limited t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067G02B6/255
CPCG02B6/255H01S3/06704H01S3/06708
Inventor 张周马淑贞陈燚高云峰
Owner HANS LASER TECH IND GRP CO LTD
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