Symmetrical Corner-Pumped Planar Waveguide Laser Amplifier

被引：2
|
作者：
Qu, Bo [1 ]
Wang, Sibo [1 ]
Zhu, Zhanda [1 ]
Hui, Yongling [1 ]
Lei, Hong [1 ]
Li, Qiang [1 ]
机构：
[1] Beijing Univ Technol, Inst Laser Engn, Fac Mat & Mfg, Beijing 100124, Peoples R China
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2021年 / 57卷 / 05期
基金：
美国国家科学基金会; 中国国家自然科学基金;
关键词：
Laser amplifier; corner-pumped; numerical modeling; planar waveguide; Yb:YAG; FABRICATION;
D O I：
10.1109/JQE.2021.3102823
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a novel structure of planar waveguide for Yb:YAG laser amplifiers as symmetrical corner-pumped planar waveguide, allowing large absorption length. We optimize the parameters of the waveguide using an amplification model. Performance including thermal effects of 10-kW symmetrical corner-pumped planar waveguide laser amplifier is simulated, demonstrating that pump absorption efficiency and uniformity are much better than end-pumped ones. Moreover, a good beam quality causing by less thermal distortion can be expected. The power is scaled from 200W to 7000W with the pump absorption efficiency of 98.2%, leading to an optical-to-optical efficiency of 68%.
引用
收藏
页数：8
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