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The thermal effect in diode-end-pumped continuous-wave 914-nm Nd:YVO4 laser

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【作者】 闫仁鹏； 于欣； 陈德应； 陈飞； 李旭东； 马欲飞； 于俊华；

【Author】 Yan Ren-Peng a)b),Yu Xin a)b),Chen De-Ying a)b),Chen Fei a)b),Li Xu-Dong a)b),Ma Yu-Fei a)b),and Yu Jun-Hua a)b) a) National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin 150080,China b) Institude of Opto-electronics,Harbin Institute of Technology,Harbin 150080,China

【机构】 National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology； Institude of Opto-electronics,Harbin Institute of Technology；

【摘要】 The thermal effect and the heat generation in diode-end-pumped continuous-wave 914-nm Nd:YVO4 lasers are investigated in detail.A theoretical model of a diode end-pumped solid-state laser is constructed to analyse the influence of fractional thermal loading on the thermal effect in the Nd:YVO4 laser based on finite element analysis.The thermal focal lengths and the end-surface deformations of laser rods in Nd:YVO4 quasi-three-level and four-level lasers are measured and compared with the results obtained by ordinary interferometry for the demonstration of higher thermal loading in 914-nm laser.Finally the fractional thermal loading in the Nd:YVO4 quasi-three-level laser is calculated by matching the experimental and the simulated end deformations.

【Abstract】 The thermal effect and the heat generation in diode-end-pumped continuous-wave 914-nm Nd:YVO4 lasers are investigated in detail.A theoretical model of a diode end-pumped solid-state laser is constructed to analyse the influence of fractional thermal loading on the thermal effect in the Nd:YVO4 laser based on finite element analysis.The thermal focal lengths and the end-surface deformations of laser rods in Nd:YVO4 quasi-three-level and four-level lasers are measured and compared with the results obtained by ordinary interferometry for the demonstration of higher thermal loading in 914-nm laser.Finally the fractional thermal loading in the Nd:YVO4 quasi-three-level laser is calculated by matching the experimental and the simulated end deformations.

【关键词】 fractional thermal loading； Nd:YVO4； 914-nm Nd:YVO4 laser；
【Key words】 fractional thermal loading； Nd:YVO4； 914-nm Nd:YVO4 laser；
【基金】 supported by the National Natural Science Foundation of China (Grant No.60978016);the Technological Project of Heilongjiang Province,China (Grant No.GC06A116);the Fundamental Research Funds for the Central Universities,China (Grant No.HIT.NSRIF.201165)
  • 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2012年02期
  • 【分类号】TN248
  • 【被引频次】2
  • 【下载频次】94
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