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

doi:10.1088/1674-1056/21/2/024208

中国物理B ›› 2012, Vol. 21 ›› Issue (2): 24208-024208.doi: 10.1088/1674-1056/21/2/024208

闫仁鹏¹ ²,于欣¹ ²,陈德应¹ ²,陈飞¹ ²,李旭东¹ ²,马欲飞¹ ²,于俊华¹ ²

收稿日期:2011-06-13 修回日期:2011-08-17 出版日期:2012-01-30 发布日期:2012-01-30
通讯作者: 闫仁鹏,yanrenpeng@yahoo.cn E-mail:yanrenpeng@yahoo.cn

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

Yan Ren-Peng(闫仁鹏)^a)b)†, Yu Xin(于欣)^a)b), Chen De-Ying(陈德应)^a)b), Chen Fei(陈飞)^a)b), Li Xu-Dong(李旭东)^a)b), Ma Yu-Fei(马欲飞)^a)b), and Yu Jun-Hua(于俊华)^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

Received:2011-06-13 Revised:2011-08-17 Online:2012-01-30 Published:2012-01-30
Contact: Yan Ren-Peng,yanrenpeng@yahoo.cn E-mail:yanrenpeng@yahoo.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60978016), the Technological Project of Heilongjiang Province, China (Grant No. GC06A116), and the Fundamental Research Funds for the Central Universities, China (Grant No. HIT. NSRIF. 201165).

摘要/Abstract

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.

Key words: fractional thermal loading, Nd:YVO₄, 914-nm Nd:YVO₄ laser

中图分类号: (Diode-pumped lasers)

42.55.Xi

42.60.Pk (Continuous operation)

闫仁鹏, 于欣, 陈德应, 陈飞, 李旭东, 马欲飞, 于俊华. [J]. 中国物理B, 2012, 21(2): 24208-024208.

Yan Ren-Peng(闫仁鹏), Yu Xin(于欣), Chen De-Ying(陈德应), Chen Fei(陈飞), Li Xu-Dong(李旭东), Ma Yu-Fei(马欲飞), and Yu Jun-Hua(于俊华) . The thermal effect in diode-end-pumped continuous-wave 914-nm Nd:YVO₄ laser[J]. Chin. Phys. B, 2012, 21(2): 24208-024208.

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

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