A high-energy, long-wave infrared laser based on ZnGeP2 optical parametric oscillator and amplifier

被引：0
|
作者：
Wang, Hai [1 ,2 ,4 ]
Hu, Liemao [1 ]
Liu, Yu [1 ,2 ]
Li, Zhiyong [1 ,2 ]
Xie, Zhenzhen [1 ,2 ]
Li, Hui [1 ]
Tian, Juntao [1 ,2 ,3 ]
Wang, Guochang [1 ,2 ]
Wang, Ziming [1 ,2 ]
Duan, Bozheng [1 ,2 ]
Tan, Rongqing [1 ,2 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, Laser Engn Ctr, Beijing 100094, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 101408, Peoples R China
[3] Beijing Inst Space Mech & Electcity, Key Lab Space Laser Informat Percept Technol CAST, Beijing 100094, Peoples R China
[4] Chinese Acad Sci, Inst Semicond, Lab Solid State Optoelect Informat Technol, Beijing 100083, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2025年 / 145卷
基金：
中国国家自然科学基金;
关键词：
Optical parametric oscillator; Optical parametric amplifier; Solid-state laser; ZnGeP(2 )crystal; Ho: YLF laser; MU-M; RANGE;
D O I：
10.1016/j.infrared.2024.105662
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This paper reports on a high-energy, long-wave infrared source that is pumped using two individual Ho: YLF lasers, which presents an effective approach to improving the energy and peak power of the long-wave laser. A 7.23-mJ nanosecond pulse at 8.027 mu m was achieved using a ZnGeP2 optical parametric oscillator and amplifier (OPO + OPA) system. The optical conversion efficiency of the system was 7.8 %, achieved with a total pump energy of 92.15 mJ. The ZnGeP2 OPO provided an output energy of 2.68 mJ, accompanied by a pulse duration of 12.4 ns. Furthermore, the pulse energy was boosted to 7.23 mJ after optical parametric amplification, resulting in a peak power increase to 0.58 MW. The amplified long-wave laser has a linewidth of 86.26 nm, and M-2 factors of 3.44 in the x direction and 2.94 in the y direction.
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页数：8
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