Design criteria for mode size optimization in diode-pumped solid-state lasers
Design criteria for mode size optimization in diode-pumped solid-state lasers
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DOI：
10.1109/3.97276
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发表时间：
1991-10
影响因子：
2.5
通讯作者：
P. Laporta;M. Brussard
中科院分区：
文献类型：
--
作者：
P. Laporta;M. Brussard
基于空间相关速率方程分析，假设谐振腔中采用 TEM/sub 00/单横模和圆形或椭圆形高斯泵浦光束，提出了二极管泵浦固体激光器模式尺寸的设计和优化标准。模式和泵浦光斑尺寸之间的最佳比率随着输入功率和泵浦光束的椭圆率而增加。除了最佳光斑尺寸之外，还可以使用简单的绘图作为指导来确定相应的激光阈值、斜率效率和预期输出功率。给出了端泵浦 Nd:YAG 激光器的实验示例，结果与设计预测吻合良好。 >
Based on space-dependent rate equation analysis, design and optimization criteria for the mode size of diode-pumped solid-state lasers are proposed, assuming an TEM/sub 00/ single transverse mode in the resonator and circular or elliptic Gaussian pump beam. The optimum ratio between mode and pump spot size increases with input power and ellipticity of the pump beam. Simple plots may be used as guidelines to determine, in addition to the optimum spot size, the corresponding laser threshold, slope efficiency, and expected output power. Experimental examples are given for an end-pumped Nd:YAG laser, showing good agreement with the design predictions. >