Modeling of longitudinally nonuniform thermal lensing in diode end-pumped solid-state lasers

被引：0
|
作者：
Li B. [1 ]
Guo Z. [1 ]
Wang S. [1 ]
Cai D. [1 ]
Wen J. [1 ]
机构：
[1] School of Technical Physics, Xidian University, Xi'an
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2011年 / 38卷 / SUPPL. 1期
关键词：
End-pumped; Lasers; Lens-like medium; Longitudinally non-uniform thermal lensing; Transmission matrix;
D O I：
10.3788/CJL201138.s102005
中图分类号：
学科分类号：
摘要：
A method for modeling the longitudinally non-uniform thermal lensing is proposed, the laser rod is divided into N equivalent segments longitudinally for calculations, each can be dealt as lens-like medium, so both the forward and backward transmission matrix of longitudinally non-uniform thermal lensing can be worked out. A quantitative analysis of the fundamental-mode distribution in a plane-parallel cavity is made using transmission matrix. The effect of the dividing number N on waist radius of cavity mode is analyzed, results show waist radius changes with the number N, when N is larger than a certain value, waist radius will tend to stabilization and can get closest to realities. The smallest values of N for the waist radius getting to stabilization are discussed with the variations of the pump power, average pump radius and rare earth ion doping concentration, individually.
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页码：s102005 / 1
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