Actively Q-switched laser with novel Nd:YAG/YAG polygonal active-mirror

Actively Q-switched laser with novel Nd:YAG/YAG polygonal active-mirror
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具有新型 Nd:YAG/YAG 多边形主动镜的主动 Q 开关激光器

DOI:
10.1088/1555-6611/aa9ac4
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发表时间:
2018-03
期刊:
Laser Physica
影响因子:
--
通讯作者:
Wenqi Ge
Wenqi Ge
中科院分区:
其他
文献类型:
--
作者:
Lang Ye;Yanzhong Chen;Wenqi Ge

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在这项工作中,我们展示了一个有效的主动调Q激光器的基础上,一种新型的晶体Nd:YAG/YAG多边形主动反射镜。采用端面泵浦的被动冷却Nd:YAG/YAG多角主动反射镜作为增益介质。针对TEM 00激光模式与大增益分布的重叠,精心设计了具有大基模体积的谐振腔。在最大吸收功率为3.1 W时,获得了平均输出功率为685 mW、重复频率为5 kHz的激光输出,相应的光-光效率和斜效率分别为22.1%和27.7%。脉冲宽度为133.9 ns。光束质量(M2)在水平方向上为1.561,在垂直方向上为1.261。
In this work, we demonstrate an efficient actively Q-switched laser based on a novel crystal Nd:YAG/YAG polygonal active mirror. A passively cooled crystal Nd:YAG/YAG polygonal active mirror with an end pump scheme was used as the gain medium. For the overlap between the TEM00laser mode and large gain profile, a cavity was carefully designed with a large fundamental mode volume. With a maximum absorbed power of 3.1 W, a 685 mW average output power with a pulse repetition of 5 kHz was attained, and the corresponding optical–optical and slope efficiency were 22.1% and 27.7%, respectively. The pulse width was 133.9 ns. The beam quality (M2) was 1.561 in the horizontal direction and 1.261 in the vertical direction.
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期刊: --
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