High-gain single-frequency Tm3+-doped ZBLAN fiber amplifier at 2.33 μm

被引：7
|
作者：
LI, Xuanxi [1 ,2 ,3 ]
Zhu, Xiran [1 ,2 ,3 ]
Yang, LinYong [1 ,2 ,3 ]
Cui, Yulong [1 ,2 ,3 ]
Zhou, Zhiyue [1 ,2 ,3 ]
Wang, Meng [1 ,2 ,3 ]
Wang, Zefeng [1 ,2 ,3 ]
机构：
[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China
[2] Natl Univ Def Technol, Nanhu Laser Lab, Changsha 410073, Peoples R China
[3] State Key Lab Pulsed Power Laser Technol, Changsha 410073, Peoples R China
来源：
OPTICS LETTERS | 2023年 / 48卷 / 02期
基金：
中国国家自然科学基金;
关键词：
LASER; MOPA;
D O I：
10.1364/OL.480084
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report here, to the best of our knowledge, the first highgain, single-frequency Tm3+-doped fiber amplifier operating at the 2.3-mu m band with conventional ground-state pumping transition (H-3(6)-> H-3(4)) at 793 nm. The gain fiber is an 8.5-m-long ZBLAN fiber with a Tm3+ doping concentration of 3 mol.%, and the seed is a single-frequency distributed feedback diode laser operated at 2331.9 nm. A gain up to 24.1 dB is generated for similar to 14 W of launched pump power with the maximum output power of 246 mW. The competitive F-3(4) -> H-3(6) laser transition at similar to 2 mu m is also investigated, and the prospects for further power scaling are discussed. (c) 2023 Optica Publishing Group
引用
收藏
页码：502 / 505
页数：4
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