Efficient Ho:YAP laser dual end-pumped by a laser diode at 1.91 Aμm in a wing-pumping scheme

被引：16
作者：
Duan, Xiaoming [1 ]
Li, Linjun [2 ]
Shen, Yingjie [3 ]
Yao, Baoquan [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Heilongjiang Inst Technol, Heilongjiang Prov Key Lab Optoelect & Laser Techn, Harbin 150050, Heilongjiang, Peoples R China
[3] Yantai Univ, Sch Optoelect Informat Sci & Technol, Yantai 264005, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2018年 / 124卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Q-SWITCHED OPERATION; CONTINUOUS-WAVE; YAG LASER;
D O I：
10.1007/s00340-018-7053-3
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrated a first continuous-wave and acousto-optical Q-switched Ho:YAP laser pumped by fiber-coupled laser diode at 1.91 A mu m. With a dual-end wing-pumping scheme, a maximum continuous-wave output power of 10.5 W at 2.1 A mu m and a slope efficiency of 53.2% were obtained when the incident LD power was 25.6 W, while diode-to-Ho conversion efficiency reached up to 41.0%. The Q-switched Ho:YAP laser was investigated for different pulse repetition frequencies from 3 to 20 kHz. The maximum average output power of 9.8 W and maximum pulse energy of 2.7 mJ were achieved at pulse repetition frequencies of 20 and 3 kHz, respectively. In addition, we demonstrated an efficient mid-infrared laser based on a diode-Ho-ZGP architecture for the first time. With a pulse repetition frequency of 3 kHz and an incident Ho pump power of 8.2 W, the average output power of 4.8 W and slope efficiency of 61.0% were reached in mid-infrared ZGP-OPO.
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页数：6
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