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Stable passively Q-switched Ho:LuAG laser with graphene as a saturable absorber

机译:稳定的被动调Q开关Ho:LuAG激光器,石墨烯为可饱和吸收体

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摘要

We report a continuous wave (CW) Tm:YLF laser-resonantly pumped Ho:LuAG laser in CW mode and passive Q-switched (PQS) mode with multilayer graphene as a saturable absorber. The lasing performance with different output couplers is analyzed. The best result was obtained with -150-mm radius curvature and 10% transmission output coupler. Under the CW mode, Ho:LuAG laser generated a maximum 1.3-W output power at the center wavelength of 2100.65 nm, corresponding to a slope efficiency of 34.6%. In PQS mode, the minimum pulse width observed is 784.7 ns with a center wavelength of 2100.65 nm at the pump power of 5.4 W. Meanwhile, the maximum output power is 0.37 W with a pulse repetition frequency of 47.3 kHz. The results show that the multilayer graphene can be used as a saturable absorber in a Ho~(3+)-doped laser around a 2-μm wavelength.
机译:我们报告了连续波(CW)Tm:YLF激光共振泵浦的Ho:LuAG激光器在CW模式和无源Q开关(PQS)模式下以多层石墨烯作为可饱和吸收剂。分析了不同输出耦合器的激光性能。使用-150 mm的半径曲率和10%的透射输出耦合器可获得最佳结果。在CW模式下,Ho:LuAG激光器在2100.65 nm的中心波长处产生最大1.3 W的输出功率,对应于34.6%的斜率效率。在PQS模式下,泵浦功率为5.4 W时,观察到的最小脉冲宽度为784.7 ns,中心波长为2100.65 nm。同时,最大输出功率为0.37 W,脉冲重复频率为47.3 kHz。结果表明,该多层石墨烯可用作波长约为2μm的Ho〜(3+)掺杂激光器中的可饱和吸收体。

著录项

  • 来源
    《Optical engineering》 |2014年第12期|126112.1-126112.5|共5页
  • 作者单位

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

    Harbin Institute of Technology, National Key Laboratory of Tunable Laser Technology, Room 328, Building No. 2A, No. 2, Yikuang Street, Nangang District, Harbin 150001, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    passively Q-switched laser; Ho:LuAG; graphene;

    机译:被动调Q激光器;何:LuAG;石墨烯;

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