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10kW级直接输出半导体激光熔覆光源的研制与热效应分析

林星辰 张亚维 朱洪波 刘云 秦莉 宁永强 王立军

林星辰, 张亚维, 朱洪波, 刘云, 秦莉, 宁永强, 王立军. 10kW级直接输出半导体激光熔覆光源的研制与热效应分析[J]. 中国光学(中英文), 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820
引用本文: 林星辰, 张亚维, 朱洪波, 刘云, 秦莉, 宁永强, 王立军. 10kW级直接输出半导体激光熔覆光源的研制与热效应分析[J]. 中国光学(中英文), 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820
LIN Xing-chen, ZHANG Ya-wei, ZHU hong-bo, LIU Yun, QIN Li, NING Yong-qiang, WANG Li-jun. 10 kW CW diode laser cladding source and thermal effect[J]. Chinese Optics, 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820
Citation: LIN Xing-chen, ZHANG Ya-wei, ZHU hong-bo, LIU Yun, QIN Li, NING Yong-qiang, WANG Li-jun. 10 kW CW diode laser cladding source and thermal effect[J]. Chinese Optics, 2019, 12(4): 820-825. doi: 10.3788/CO.20191204.0820

10kW级直接输出半导体激光熔覆光源的研制与热效应分析

基金项目: 

国家重点研发计划项目 2017YFB1104400

详细信息
    作者简介:

    林星辰(1988-), 女, 助理研究员, 2014年于哈尔滨工程大学获得硕士学位, 主要从事激光技术应用、激光控制等方面的研究。E-mail:linstars123@163.com

    朱洪波(1984-), 男, 吉林长春人, 博士后, 2012年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事大功率半导体激光加工光源的研制方面的研究。E-mail:zhbciomp@163.com

  • 中图分类号: TN248.4

10 kW CW diode laser cladding source and thermal effect

Funds: 

National Key Research and Development Program of China 2017YFB1104400

More Information
  • 摘要: 针对目前工业领域对激光熔覆、激光热处理的应用需求,研制了10 kW级直接输出半导体激光熔覆光源。采用半导体激光叠阵为单元器件,将偏振合成技术和波长合成技术相结合,将2只915 nm和2只976 nm半导体激光叠阵进行合成,当工作电流为122 A时,最大输出功率达到10 120 W,电-光转换效率为46%。实验中还对光源内部的易损光学元件的热效应进行了模拟分析并设计有效的散热结构,使其最高温度从442.2 K下降到320 K,同时对应的热应力从75.4 MPa下降到14 MPa,大幅提升了激光光源的可靠性。

     

  • 图 1  半导体激光器光路合成模型图

    Figure 1.  Optical path combination model of diode laser

    图 2  二色分光镜的膜系曲线

    Figure 2.  Coating curve of dichroic beam splitter

    图 3  自由传导散热时镜头温度和热应力的模拟结果图

    Figure 3.  Simulations of temperature and thermal stress distribution under free conduction thermal dissipation

    图 4  聚焦镜桶的散热结构图

    Figure 4.  Thermal dissipation structure of focusing lens holder

    图 5  冷却水通道数量与温度和热应力的关系图

    Figure 5.  Temperature and thermal stress varying with water channels

    图 6  6个水冷通道下聚焦镜筒的温度和热应力分布图

    Figure 6.  Temperature and thermal stress distribution of focusing lens holder with six water channels

    图 7  功率和效率随电流的变化曲线

    Figure 7.  Output power and efficiency versus operating current

    图 8  可靠性测试前(a)后(b)的光斑图

    Figure 8.  Profiles of focusing spot before(a) and after(b) the reliability test

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出版历程
  • 收稿日期:  2018-03-25
  • 修回日期:  2018-04-01
  • 刊出日期:  2019-08-01

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