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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Bibliographic Details
Published in:中国物理：英文版 2012-02, Vol.21 (2), p.338-344
Main Author: 闫仁鹏 于欣 陈德应 陈飞 李旭东 马欲飞 于俊华
Format: Article
Language:English
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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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.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/21/2/024208