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

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 lase...

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Published in中国物理：英文版 Vol. 21; no. 2; pp. 338 - 344
Main Author 闫仁鹏 于欣 陈德应 陈飞 李旭东 马欲飞 于俊华
Format Journal Article
LanguageEnglish
Published 01.02.2012
Subjects
Nd：YVO4晶体
Nd：YVO4激光器
二极管泵浦
二极管端面泵浦
固态激光器
热效应
表面变形
连续波
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/21/2/024208

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Summary: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.
Bibliography:11-5639/O4
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.
Yan Ren-Peng, Yu Xin, Chert De-Ying, Chen Fei, Li Xu-Dong, Ma Yu-Fei, Yu aun-Hua） a） National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150080 b） Institude of Opto-electronics, Harbin Institute of Technology, Harbin 150080, China
fractional thermal loading, Nd：YVO4, 914-nm Nd：YVO4 laser
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/21/2/024208