Reaearch on High Brightness Fiber Coupled Diode Laser Module with Hundred Watts Class Output Power

HAO Ming-ming; ZHU Hong-bo; QIN Li; NING Yong-qiang; LIU Yun; ZHANG Zhi-jun; WANG Li-jun

doi:10.3788/fgxb20123306.0651

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Reaearch on High Brightness Fiber Coupled Diode Laser Module with Hundred Watts Class Output Power

paper | 更新时间：2020-08-12

- Reaearch on High Brightness Fiber Coupled Diode Laser Module with Hundred Watts Class Output Power
- Chinese Journal of Luminescence Vol. 33, Issue 6, Pages: 651-659(2012)
- 作者机构：
  
  1. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123306.0651
  CLC： TN248.4
- Received：23 March 2012，
  
  Revised：2012-4-6，
  
  Published Online：10 June 2012，
  
  Published：10 June 2012
- 稿件说明：
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郝明明, 朱洪波, 秦莉, 宁永强, 刘云, 张志军, 王立军. 百瓦级高亮度光纤耦合半导体激光模块的研制[J]. 发光学报, 2012,(6): 651-659

HAO Ming-Ming, ZHU Hong-Bo, QIN Li, NING Yong-Qiang, LIU Yun, ZHANG Zhi-Jun, WANG Li-Jun. Reaearch on High Brightness Fiber Coupled Diode Laser Module with Hundred Watts Class Output Power[J]. Chinese Journal of Luminescence, 2012,(6): 651-659
郝明明, 朱洪波, 秦莉, 宁永强, 刘云, 张志军, 王立军. 百瓦级高亮度光纤耦合半导体激光模块的研制[J]. 发光学报, 2012,(6): 651-659 DOI： 10.3788/fgxb20123306.0651.

HAO Ming-Ming, ZHU Hong-Bo, QIN Li, NING Yong-Qiang, LIU Yun, ZHANG Zhi-Jun, WANG Li-Jun. Reaearch on High Brightness Fiber Coupled Diode Laser Module with Hundred Watts Class Output Power[J]. Chinese Journal of Luminescence, 2012,(6): 651-659 DOI： 10.3788/fgxb20123306.0651.

摘要

用3只976 nm半导体激光短列阵作为子模块

研制出连续工作的百瓦级高亮度光纤耦合模块。首先

利用光束转换器将每个半导体激光短列阵进行光束整形;然后采用空间复用技术将3个半导体激光短列阵在光参数积小的方向上叠加

并利用倒置伽利略望远镜作为扩束器进一步压缩发散角;最后利用优化结构的透镜组将激光聚焦到芯径200 m

数值孔径为0.22的光纤中。测量结果显示:聚焦后激光的发散角为24.8

焦平面的光斑尺寸为175.2 m;耦合后测量光纤出光功率可达107 W

对应亮度为2.23 MW/(cm

sr)

达到了国内利用列阵进行光纤耦合的领先水平;在工作电流为52.5 A时

电光转换效率为43.1%

远高于全固态等激光器;最后测量本模块在不同驱动电流时的光谱

并以此计算出模块的热阻为1.29 K/W

说明它的散热性能良好。结果表明

本光纤耦合模块适合应用于泵浦光纤激光器、医疗和激光加工等领域。

Abstract

Three 976 nm diode laser short bars were used as submodule to manufacture high brightness fiber coupled module with CW hundred watts class output power. First

beam transform systems were employed to shape beams emitted from each submodlue; Second

the three beams were stacked in direction of lower beam parameter product by means of spatial multiplexing technology; Finally

the laser was focused into a multimode fiber with 200 m core diameter and

=0.22 by optimized lens. Experiment result showed that divergence angle of the focused laser beam was 24.8 and its beam waist diameter was 175.2 m; laser output from fiber could reach to 107 W

equalizing brightness of 2.23 MW/(cm

sr)

which is a higher level in China. Furthermore

the wall plug efficiency is 43.1% when driving current is 52.5 A

which is far higher than that of solid state laser. Finally the thermal resistance was computed by means of measuring spectrum with different current and the result is 1.29 K/W which indicates favorable heat dissipation of the module. All of the result showed that the module can be used in the field of pumping fiber lasers

medical

material processing and so on.

关键词

Keywords

references

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WANG Peng-cheng

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HAO Ming-ming

ZHU Hong-bo

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ZHANG Zhi-jun

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Related Institution

Institute of Industry Technology. Guangzhou & Chinese Academy of Sciences

University of Chinese Academy of Sciences

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

University of Chinese Academy of Sciences

State Key Laboratory of Luminescence and Application, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

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