Abstract An analytical model of quasi-continuous wave (quasi-CW) diode array side-pumped slab laser for Yb:YAG oscillator in long-pulse free-running has been developed based on the CW model. In this model we first introduce a new parameter, pump pulse width, and make the model available for use in the quasi-CW model. We also give an analytical equation of laser delay time to calculate the laser pulse width. A detailed model is also presented for a new structure laser design, taking account of the geometry of Yb:YAG slab. A quasi-CW diode array side-pumped Yb:YAG slab laser is investigated theoretically and experimentally. Experiments yield a quasi-CW output energy up to 20.36 mJ with the laser pulse width of 654.55 μs at 1049 nm when the diode arrays operate at 25 Hz and 1 ms pulse width. The crystal dimensions are 3 mm×8 mm×1 mm and the doping density is 10 at.%. The experimental results are in good agreement with the predictions of the theoretical model.
Received: 24 September 2003
Revised: 05 February 2004
Accepted manuscript online:
PACS:
42.55.Rz
(Doped-insulator lasers and other solid state lasers)
(Resonators, cavities, amplifiers, arrays, and rings)
Cite this article:
Wu Hai-Sheng (吴海生), Yan Ping (闫平), Gong Ma-Li (巩马理), Liu Qiang (柳强) Theoretical and experimental investigations of quasi-continuous wave diode array side-pumped Yb:YAG slab laser 2004 Chinese Physics 13 871
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A 61-mJ, 1-kHz cryogenic Yb: YAG laser amplifier Huijun He(何会军), Jun Yu(余军), Wentao Zhu(朱文涛), Qingdian Lin(林庆典), Xiaoyang Guo(郭晓杨), Cangtao Zhou(周沧涛), and Shuangchen Ruan(阮双琛). Chin. Phys. B, 2021, 30(12): 124206.
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