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
Language	English
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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ISSN	1674-1056 2058-3834
DOI	10.1088/1674-1056/21/2/024208

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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