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Volume 19 Issue 4
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Study on the gain-switching characteristics of Ti：sapphire lasers

  • 1.

    Beijing Institute of Technology

  • Received Date: 1994-11-28
  • The temporal characteristics of a gain-switched Ti:sapphire laser pumped by a frequency-doubled Q-switched Nd:YAG laser have studied experimentally at the range of the pump level(pump energy/threshold energy)from 2.1 to 3.8,the cavity length from 20cm to 60cm.According to the theoretical model of the temporal characteristics for the gain-switching laser oscillator,the buildup time and pulse-width of the oscillating mode depend on the pump level and the cavity length,inversely as the cavity loss,and also is not dependent on the pump pulse-width and the waveshape.The experimental result coincides well with the theoretical analysis.The laser oscillator with a short cavity length L=20cm pumped by a 10 ns pulse-width Q-switched laser outputs a 4ns shorter laser pulse.
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    Rines G A,Moulton P F.Opt Lett,1990:15:434
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    Eggleston J M,Deshazer I.G.Kangas K W.IEEE J Q E.1988:QE-24:1009
    [3] 吴路生,陈—宏,赵梅荣et al.中国激光,1990;16:4
    [4]

    Steele T R,Gerstenberger D C,Drobshoff A et al.Opt Lett,1991;16:399
    [5] 徐冰,林礼煌,欧阳斌et al.光学学报,1993:13:425
    [6] 张国威.激光技术,1995;19(3):129
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study on the gain-switching characteristics of Ti：sapphire lasers

  • 1. Beijing Institute of Technology
  • Received Date: 1994-11-28
  • Available Online: 1995-07-25

Abstract: The temporal characteristics of a gain-switched Ti:sapphire laser pumped by a frequency-doubled Q-switched Nd:YAG laser have studied experimentally at the range of the pump level(pump energy/threshold energy)from 2.1 to 3.8,the cavity length from 20cm to 60cm.According to the theoretical model of the temporal characteristics for the gain-switching laser oscillator,the buildup time and pulse-width of the oscillating mode depend on the pump level and the cavity length,inversely as the cavity loss,and also is not dependent on the pump pulse-width and the waveshape.The experimental result coincides well with the theoretical analysis.The laser oscillator with a short cavity length L=20cm pumped by a 10 ns pulse-width Q-switched laser outputs a 4ns shorter laser pulse.

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