High-beam-quality 2.1 μm pumped mid-infrared type-II phase-matching BaGa4Se7 optical parametric oscillator with a ZnGeP2 amplifier

被引：25

作者：

Liu, Gaoyou ^{[1
]}

Chen, Yi ^{[1
]}

Li, Zhuang ^{[2
,3
]}

Yang, Ke ^{[1
]}

Yao, Baoquan ^{[1
]}

Yao, Jiyong ^{[2
]}

Wang, Ruixue ^{[1
]}

Yang, Chao ^{[1
]}

Mi, Shuyi ^{[1
]}

Dai, Tongyu ^{[1
]}

Duan, Xiaoming ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China

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

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

OPTICS LETTERS | 2020年 / 45卷 / 13期

基金：

中国国家自然科学基金;

关键词：

HIGH-POWER; SYSTEM; CONVERSION; PULSES; ENERGY;

D O I：

10.1364/OL.398588

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We firstly demonstrated a tunable 2.1 mu M pumped mid-infrar ed type-II phase-matching BaGa4Se7 (BGSe) optical parametric oscillator (OPO). A signal tuning range of 3.82-3.99 mu m was achieved. With a signal light produced by the BGSe OPO serving as seed, the ZnGeP2 (ZGP) optical parametric amplifier (OPA) was first introduced. A 4.35 W mid-infrared laser was obtained in the novel type-II BGSe OPO with a ZGP OPA system, which was pumped by a 24 W 1 kHz Q-switched Ho:YAG laser. The beam quality factor M-2 of the whole system is similar to 2.3, which is over a 50% promotion on the previous M-2 results of single BGSe OPO. (C) 2020 Optical Society of America

引用

页码：3805 / 3808

页数：4

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