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Volume 26 Issue 6
Sep.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2002 >  26(6): 401-402,406

Citation:
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Passive Q-switched Nd：YVO4/Cr4+：YAG lasers pumped by a fiber coupled laser diode

  • 1.

    Department of Precision Instruments, Tsinghua University, Beijing, 100084

  • Received Date: 2002-03-26
    Accepted Date: 2002-04-18
  • On the basis of Siegman's criterion for good passive Q-switched,it is difficult to operate a diode-pumped,passive Q-switched Nd:YVO4 laser with Cr4+:YAG as the saturable absorber.The main difficulties arise from the fact that a Nd:YVO4 crystal has a high stimulated emission cross section.With a fiber coupled laser diode end pumping Nd:YVO4 laser,1.4W of CW output power has obtained under a pump level of 3.5W with optical conversion efficiency of 40%.The Q-switching operation of Nd:YVO4 laser with Cr4+:YAG as the saturable absorber was demonstrated.Q-switched pulses duration is 11.7ns with pulse repetition rate of 22kHz.
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  • [1] 李健,何京良,侯玮 et al. 光电子激光,1999,10(5):395.
    [2] 何京良,侯玮,张横利 et al.中国激光,2000,27(6):481.
    [3]

    Siegman A E.Laser.CA: University Science,Mill Valley,1986:1024.
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    Chen Y F,Huang T M,Wang C L. Electron Lett,1997,33(22):1880.
    [5]

    Chen Y F,Tsai S W. IEEE J Q E,2001,37(4):292.
    [6] 王军民,李瑞宁,杨炜东 et al.中国激光,1996,23(12):1057.
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Passive Q-switched Nd：YVO4/Cr4+：YAG lasers pumped by a fiber coupled laser diode

  • 1. Department of Precision Instruments, Tsinghua University, Beijing, 100084
  • Received Date: 2002-03-26
  • Accepted Date: 2002-04-18
  • Available Online: 2002-11-25

Abstract: On the basis of Siegman's criterion for good passive Q-switched,it is difficult to operate a diode-pumped,passive Q-switched Nd:YVO4 laser with Cr4+:YAG as the saturable absorber.The main difficulties arise from the fact that a Nd:YVO4 crystal has a high stimulated emission cross section.With a fiber coupled laser diode end pumping Nd:YVO4 laser,1.4W of CW output power has obtained under a pump level of 3.5W with optical conversion efficiency of 40%.The Q-switching operation of Nd:YVO4 laser with Cr4+:YAG as the saturable absorber was demonstrated.Q-switched pulses duration is 11.7ns with pulse repetition rate of 22kHz.

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