Coupling of cylindrical high-power laser-diode array end-pumped disk amplifier

被引：0
|
作者：
Deng Q. [1 ]
Ding L. [1 ]
He S. [1 ]
Fu X. [1 ]
Tang J. [1 ]
Xie X. [1 ]
Lu Z. [1 ]
Dong Y. [1 ]
机构：
[1] Research Center of Laser Fusion, CAEP, Mianyang 621900
来源：
Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 10期
关键词：
Coupling coefficient; Cylindrical high-power laser-diode; End pumping; Laser-diode array; Solid-state lasers; Uniform pumping;
D O I：
10.3788/HPLPB20102210.2249
中图分类号：
学科分类号：
摘要：
A coupling method is put forward for laser-diode array(LDA) end-pumped amplifiers. The LDA is inscribed on a cylindrical surface and then a duct is connected to it. That means the laser diodes are arranged in the shape of an arch. The center of the arch is at the geometrical center of the gain medium. A three dimensional ray-tracing program is made to simulate the coupling of the cylindrical LDAs. Simulating results show that the cylindrical laser diode array can be arranged flexibly. When laser diode are arranged as 1 × 12, 2 × 6 and 3 × 4 arrays, high coupling coefficient and uniform coupling intensity distribution can be obtained simultaneously when the radius of the arch changes in a wide range; when the gain media is close to the output end of the duct, top-hat deposited pumping intensity distributions can be obtained for the three arrays; when the ratio of the number of laser diodes in the fast axis to that in the slow axis is equal to the ratio of divergence between the fast axis and the slow axis, the best coupling results can be obtained.
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页码：2249 / 2252
页数：3
相关论文
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