12.6 W single-frequency continuous-wave 671 nm laser with an external second harmonic generation cavity

被引：1

作者：

Liu, Xu-Chao ^{[1
,2
,3
]}

Wang, Zhi-Min ^{[1
,2
]}

Zhang, Yi-Xuan ^{[1
,2
]}

Zhou, Zi-Han ^{[1
,2
,3
]}

Zhang, Feng-Feng ^{[1
,2
]}

Liu, Qian-Qian ^{[1
,2
,3
]}

Xu, Yi-Chen ^{[1
,2
,3
]}

Song, Yue ^{[1
,2
,3
]}

Yang, Rui-Nan ^{[1
,2
,3
]}

Zong, Nan ^{[1
,2
]}

Bo, Yong ^{[1
,2
]}

Peng, Qin-Jun ^{[1
,2
]}

Cui, Da-Fu ^{[1
]}

Xu, Zu-Yan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem TIPC, Key Lab Solid State Laser, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Key Lab Funct Crystal & Laser Technol, TIPC, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100190, Peoples R China

来源：

LASER PHYSICS LETTERS | 2020年 / 17卷 / 09期

基金：

中国国家自然科学基金;

关键词：

671 nm laser; single-frequency; second-harmonic generation; external ring cavity; HIGH-POWER; EFFICIENCY;

D O I：

10.1088/1612-202X/ab974b

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a high-power single-frequency continuous-wave (CW) 671 nm laser by the second-harmonic generation (SHG) of a 1342 nm laser based on an external bow-tie enhancement cavity. Different from previous works, and using periodically poled nonlinear crystals for the SHG, we adopt the high damage-threshold nonlinear crystal lithium triborate (LBO) in the external SHG cavity to achieve a high-power CW SHG. In our experiment, with a type-II noncritically phase-matched LBO, an up to 12.6 W CW 671 nm laser is obtained with a 24 W incident 1342 nm laser, corresponding to an SHG conversion efficiency of 52.5 %. To our knowledge, this is a new record of power for the single-frequency CW 671 nm laser.

引用

页数：5

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