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Analysis and comparison of solid-state lasers and fiber lasers on the coupling of rod-type photonic crystal fiber

LI Tian-qi MAO Xiao-jie LEI Jian BI Guo-jiang JIANG Dong-sheng

李天琦, 毛小洁, 雷健, 秘国江, 姜东升. 固体激光器与光纤激光器对光子晶体光纤棒耦合的分析与对比[J]. 中国光学(中英文), 2018, 11(6): 958-973. doi: 10.3788/CO.20181106.0958
引用本文: 李天琦, 毛小洁, 雷健, 秘国江, 姜东升. 固体激光器与光纤激光器对光子晶体光纤棒耦合的分析与对比[J]. 中国光学(中英文), 2018, 11(6): 958-973. doi: 10.3788/CO.20181106.0958
LI Tian-qi, MAO Xiao-jie, LEI Jian, BI Guo-jiang, JIANG Dong-sheng. Analysis and comparison of solid-state lasers and fiber lasers on the coupling of rod-type photonic crystal fiber[J]. Chinese Optics, 2018, 11(6): 958-973. doi: 10.3788/CO.20181106.0958
Citation: LI Tian-qi, MAO Xiao-jie, LEI Jian, BI Guo-jiang, JIANG Dong-sheng. Analysis and comparison of solid-state lasers and fiber lasers on the coupling of rod-type photonic crystal fiber[J]. Chinese Optics, 2018, 11(6): 958-973. doi: 10.3788/CO.20181106.0958

固体激光器与光纤激光器对光子晶体光纤棒耦合的分析与对比

基金项目: 

国家自然科学基金项目 123456

详细信息
    作者简介:

    李天琦(1992-), 男, 内蒙古呼和浩特人, 硕士研究生, 2015年于电子科技大学获得学士学位, 主要从事高功率皮秒放大技术方面的研究。E-mail:juju222888@163.com

  • 中图分类号: TN253

Analysis and comparison of solid-state lasers and fiber lasers on the coupling of rod-type photonic crystal fiber

doi: 10.3788/CO.20181106.0958
Funds: 

National Natural Science Foundation of China 123456

More Information
    Author Bio:

    LI Tian-qi(1992—) is male, from Hohhot, Inner Mongolia and is a candidate for a master′s degree. He received a bachelor's degree from the University of Electronic Science and Technology of China in 2015 and is mainly engaged in high-power picosecond amplification technology. E-mail:juju222888@163.com

    Corresponding author: LI Tian-qi, E-mail:juju222888@163.com
  • 摘要: 耦合效率的高低与耦合后光斑的好坏直接影响着光子晶体光纤棒的放大效果,因此需要对种子光的耦合效果进行研究,选择合适的激光器作为种子源。本文对光子晶体光纤棒在固体激光器与光纤激光器两种情况下的耦合效率进行了理论分析;模拟计算了两种激光器情况下耦合效率的变化规律以及对准误差对耦合效率的影响;选择合适的透镜或透镜组,使用两种激光器对光子晶体光纤棒进行了耦合实验;对比两种激光器的耦合效果可知:固体激光器的耦合效率最高只能达到62.4%,而光纤激光器的耦合效率可以达到80%以上;在光纤激光器耦合情况下,对不同功率注入时耦合效率,以及耦合后光斑进行了实验分析。得到的实验结果对后续光纤棒的放大实验具有指导作用。

     

  • 图 1  单透镜耦合原理图

    Figure 1.  Diagram of the single-lens coupling system

    图 2  耦合效率与透镜位置的关系

    Figure 2.  Relationship between coupling efficiency and lens position

    图 3  耦合效率与透镜焦距的关系

    Figure 3.  Relationship between coupling efficiency and focal length of the lens

    图 4  扩束透镜组耦合原理图

    Figure 4.  Diagram of the beam expanding lens group coupling system

    图 5  耦合效率与扩束倍率的关系

    Figure 5.  Relationship between the coupling efficiency and magnification of the beam expander

    图 6  纵向失准损耗示意图

    Figure 6.  Diagram of longitudinal misalignment loss

    图 7  纵向误差对耦合效率的影响

    Figure 7.  Influence of longitudinal error on coupling efficiency

    图 8  横向失准损耗示意图

    Figure 8.  Diagram of lateral misalignment loss

    图 9  横向误差对耦合效率的影响

    Figure 9.  Influence of transverse error on coupling efficiency

    图 10  角度失准损耗示意图

    Figure 10.  Diagram of transverse misalignment loss

    图 11  角度误差对耦合效率的影响

    Figure 11.  Influence of transverse error on coupling efficiency

    图 12  固体激光器耦合实验光路图

    Figure 12.  Diagram of solid-state laser coupling

    图 13  光纤激光器耦合实验光路图

    Figure 13.  Diagram of fiber laser coupling

    图 14  固体激光器(左)与光纤激光器(右)耦合后光斑对比图

    Figure 14.  Solid-state laser(left) and fiber laser(right) coupling facula

    图 15  耦合效率随注入功率的变化情况

    Figure 15.  Relationship between the coupling efficiency and injected power

    图 16  注入功率1 W到6 W的情况下耦合光斑的变化规律

    Figure 16.  Changing law of coupling facula when injection power growing from 1 W to 6 W

    表  1  Basic parameters of the solid-state laser

    Table  1.   Basic parameters of the solid-state laser

    Parameter Name Parameter Value Parameter Name Parameter Value
    Output Power 1~4.5 W Output Waist Diameter 800 μm
    M2 ~1.2 Wavelength 1 030 nm
    下载: 导出CSV

    表  2  Basic parameters of fiber laser

    Table  2.   Basic parameters of fiber laser

    Parameter Name Parameter Value Parameter Name Parameter Value
    Output Power 1~6 W Output tail Fiber Core Diameter 25 μm
    M2 ~1.1 Wavelength 1 030 nm
    下载: 导出CSV

    表  3  Comparison of coupling efficiency under low power conditions

    Table  3.   Comparison of coupling efficiency under low power conditions

    Laser type Injected power/mW Transmitted power/mW Coupling efficiency/%
    Solid State 100.1 42.3 42.2
    Optical Fiber 1 000 600 60.0
    下载: 导出CSV

    表  4  Comparison of coupling efficiency under medium power conditions

    Table  4.   Comparison of coupling efficiency under medium power conditions

    Laser type Injected power/mW Transmitted power/mW Coupling efficiency/%
    Solid State 4.20 2.62 62.4
    Optical Fiber 4.00 3.22 80.5
    下载: 导出CSV

    表  5  Transmission power and coupling efficiency vary with injection power

    Table  5.   Transmission power and coupling efficiency vary with injection power

    Injected power/W Transmitted power/W Coupling efficiency/%
    1 0.60 60.0
    2 1.42 71.0
    3 2.31 77.0
    4 3.22 80.5
    5 4.17 83.4
    6 5.23 87.2
    下载: 导出CSV
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  • 收稿日期:  2017-12-17
  • 修回日期:  2018-02-21
  • 刊出日期:  2018-12-01

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