Pulse Compression in Laser-Diode-Pumped Doubly Q-Switched Intracavity Optical Parametric Oscillator Considering Gaussian Distribution of Intracavity Photon Densities

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著者

    • Wang Jing Wang Jing
    • School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China
    • Yang Kejian
    • School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China
    • Li Dechun
    • School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China
    • An Jing
    • School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China
    • Li Ming
    • School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China

抄録

By considering the Gaussian spatial distribution of the initial population-inversion density and the intracavity photon densities of the fundamental, the signal and the idler lights, the rate equations of a laser-diode (LD) end-pumped doubly Q-switched intracavity optical parametric oscillator (IOPO) with both acousto-optic (AO) modulator and Cr4+:YAG saturable absorber are derived. By numerically solving these coupled equations, the dependences of pulse width, pulse energy and peak power on incident pump power for the generated-signal light, whose wavelength is 1.57 μm, are obtained. In the experiment, a LD-pumped doubly Q-switched Nd:GdVO4/KTP (KTiOPO4) IOPO with AO and Cr4+:YAG saturable absorber is realized. The experimental results are compared with those of the AO singly Q-switched IOPO. The doubly Q-switched IOPO can generate the shorter pulse width and higher peak power than that of the AO singly switched one when the input diode power is about from 5.2 to 6 W. The experimental results agree with the theoretical values well.

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 46(4A), 1505-1510, 2007-04-15

    Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018900703
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    8706153
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  NDL  JSAP 
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