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

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

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.

Keywords: fractional thermal loading Nd:YVO₄ 914-nm Nd:YVO₄ laser

Received: 13 June 2011
Revised: 17 August 2011
Accepted manuscript online:

PACS:	42.55.Xi	(Diode-pumped lasers)
	42.60.Pk	(Continuous operation)

Fund: 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).

Corresponding Authors: Yan Ren-Peng,yanrenpeng@yahoo.cn
E-mail: yanrenpeng@yahoo.cn

Cite this article:

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 2012 Chin. Phys. B 21 024208

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

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