High-power ultraviolet 278 nm laser from fourth-harmonic generation of a Nd:YAG laser in CsB3O5

被引：12

作者：

Wang, Zhichao ^{[1
,4
]}

Yang, Feng ^{[1
]}

Zhang, Guochun ^{[2
]}

Bo, Yong ^{[1
]}

Liu, Shanshan ^{[2
,4
]}

Xie, Shiyong ^{[1
]}

Xu, Yiting ^{[1
]}

Zong, Nan ^{[1
]}

Li, Fangqin ^{[1
]}

Liu, Biaolong ^{[1
,4
]}

Xu, Jialin ^{[1
]}

Peng, Qinjun ^{[1
]}

Zhang, Jingyuan ^{[1
,3
]}

Cui, Dafu ^{[1
]}

Wu, Yicheng ^{[2
]}

Xu, Zuyan ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Funct Crystal & Laser Technol, Res Ctr Laser Phys & Technol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Beijing Ctr Crystal R&D, Tech Inst Phys & Chem, Key Lab Funct Crystal & Laser Technol, Beijing 100190, Peoples R China

[3] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA

[4] Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China

来源：

OPTICS LETTERS | 2012年 / 37卷 / 12期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

NONLINEAR-OPTICAL CRYSTAL; 3RD HARMONIC-GENERATION;

D O I：

10.1364/OL.37.002403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a high-power UV 278 nm laser by fourth-harmonic generation (FHG) of a 1112 nm Nd:YAG laser in a nonlinear optical (NLO) crystal CsB3O5 (CBO) for the first time, to our best knowledge. A 30 W level diode-pumped Q-switched Nd: YAG laser at 1112 nm with beam quality factor M-2 = 1.2 was used as the fundamental light source at a pulse width of 500 ns. With an LiB3O5 crystal, the 1112 nm laser was first frequency-doubled to 556 nm with an average output power of 13.5 W. It was then frequency doubled again in a CBO crystal to obtain the FHG output at 278 nm. The maximum average output power of the 278 nm laser is up to 1.5 W. The results demonstrated that CBO crystal is a promising NLO material for UV high-power lasers below 300 nm. (C) 2012 Optical Society of America

引用

页码：2403 / 2405

页数：3

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