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

页数：8

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