162.6 mJ high-energy and high-efficiency KTP optical  parametric oscillator at 2 μm

doi:10.3788/COL202523.021401

	162.6 mJ high-energy and high-efficiency KTP optical parametric oscillator at 2 μm
	Liu, Yuchun1,2 ; Song, Jiajun 1; Peng, Yujie 1; Li, Enhao 1; Long, Yingbin 1; Sun, Jianyu 1,3; Shen, Liya1,2 ; Liu, Yinfei 1,3; Zhu, Junze 1,3; Leng, Yuxin1,3 ; Xu, Zhizhan1,2,3
	2025-02
发表期刊	CHINESE OPTICS LETTERS (IF:3.3[JCR-2023],2.1[5-Year])
ISSN	1671-7694
卷号	23 期号:2
发表状态	已发表
DOI	10.3788/COL202523.021401
摘要	A high-energy and high-efficiency 2 μm nanosecond optical parametric oscillator (OPO) with excellent energy stability is reported. The cavity adopts a plane–plane configuration with two potassium titanyl phosphate (KTP) crystals inserted using a spatial walk-off compensated orientation. The KTP-OPO is pumped by a 1064 nm Nd:YAG Q-switched laser at a repetition rate of 10 Hz and produces a maximum pulse energy of 162.6 mJ at a pump energy of 431 mJ, corresponding to an optical conversion efficiency of 37.7% and a slope efficiency of 45.2%. The energy stability shows a record root meansquare (RMS) of 0.4% over 30min.Toourknowledge, this represents the highest 2 μmpulseenergy achieved viathe1μmlaser-pumped KTP OPO scheme, which could be an excellent laser source for driving extreme ultraviolet (EUV) radiations in the subsequent demonstration experiments.
关键词	optical parametric oscillator 2 μm laser KTP
学科门类	理学 ; 理学::物理学 ; 工学 ; 工学::光学工程
URL	查看原文
收录类别	SCIE ; SCI ; EI ; CSCD ; 其他 ; SCOPUS
语种	英语
资助项目	National Key R&D Program of China[2022YFA1604401] ; National Natural Science Foundation of China["12388102","62205351","61925507","62075227","22227901"] ; Shanghai Science and Technology Committee Program["22DZ1100300","22560780100","23560750200"] ; Shanghai Rising-Star Program[21QA1410200] ; Youth Innovation Promotion Association CAS[2020248]
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:001447253800013
出版者	CHINESE LASER PRESS
EI入藏号	20251218072437
EI主题词	Pulse repetition rate
EI分类号	713.2 Oscillators - 717 Optical Communication - 741.1.1 Nonlinear Optics - 744 Lasers and Masers - 744.2 Solid State Lasers - 745.1 Printing
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/496942
专题	物质科学与技术学院_博士生物质科学与技术学院_特聘教授组_冷雨欣组物质科学与技术学院_特聘教授组_徐至展组
通讯作者	Song, Jiajun; Peng, Yujie; Leng, Yuxin
作者单位	1.Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China 2.School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China 3.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Liu, Yuchun,Song, Jiajun,Peng, Yujie,et al. 162.6 mJ high-energy and high-efficiency KTP optical parametric oscillator at 2 μm[J]. CHINESE OPTICS LETTERS,2025,23(2).
APA	Liu, Yuchun.,Song, Jiajun.,Peng, Yujie.,Li, Enhao.,Long, Yingbin.,...&Xu, Zhizhan.(2025).162.6 mJ high-energy and high-efficiency KTP optical parametric oscillator at 2 μm.CHINESE OPTICS LETTERS,23(2).
MLA	Liu, Yuchun,et al."162.6 mJ high-energy and high-efficiency KTP optical parametric oscillator at 2 μm".CHINESE OPTICS LETTERS 23.2(2025).