Self-Q-switched and broad wavelength-tunable lasing in Tm3+-doped CaF2 single-crystal fiber

被引：10
|
作者：
Zu, Yuqian [1 ,2 ]
Zong, Mengyu [1 ,2 ]
Wang, Yangxiao [3 ,4 ]
Zhang, Zhen [3 ,4 ]
Zhang, Zhonghan [3 ,4 ]
Wu, Anhua [3 ,4 ]
Liu, Jie [1 ,2 ,6 ,7 ]
Su, Liangbi [3 ,4 ,5 ]
机构：
[1] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Sch Phys & Elect, Jinan 250014, Shandong, Peoples R China
[2] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Shandong, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Ceram, Synthet Single Crystal Res Ctr SSCRC, CAS Key Lab Transparent & Optofunct Inorgan Mat, Shanghai 201899, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 201899, Peoples R China
[5] CAS Ctr Excellence Ultraintense Laser Sci, Shanghai 201800, Peoples R China
[6] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Shandong, Peoples R China
[7] Shandong Normal Univ, Inst Data Sci & Technol, Jinan 250014, Shandong, Peoples R China
来源：
APPLIED PHYSICS EXPRESS | 2020年 / 13卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Tm; CaF2; single-crystal fiber; self-Q-switched; wavelength-tunable; pulsed laser; around 2 mu m; MU-M LASER; OPERATION; TM; CW;
D O I：
10.35848/1882-0786/abb91c
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Self-Q-switched lasing was demonstrated for the first time around 2 mu m in Thulium (Tm) doped CaF2 single-crystal fiber (SCF) using a compact linear cavity. Maximum average output power of 1.17 W was obtained under 2.38 W absorbed pump power, corresponding to the slope efficiency of up to 56.01%. Self-Q-switched laser with a 1.736 mu s shortest pulse width at 48.80 kHz repetition rate was successfully realized. Besides, broad wavelength-tunable Tm:CaF2SCF laser in 1859-2040 nm region was operated. These results show that the Tm:CaF2SCF is a promising alternative for generating efficient micro diode-pumped pulsed lasers at 2 mu m. (c) 2020 The Japan Society of Applied Physics
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页数：5
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