兹布兰
材料科学
光纤激光器
光学
放大器
激光线宽
光电子学
铥
激光器
波长
物理
兴奋剂
CMOS芯片
作者
Xuanxi Li,Yamei Xu,Linyong Yang,Yulong Cui,Zhiyue Zhou,Meng Wang,Zefeng Wang
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2023-11-14
卷期号:31 (24): 40991-40991
被引量:8
摘要
We present here the first watt-level single-frequency thulium-doped ZBLAN fiber amplifier system operating at a wavelength of 2.3 µm. Continuous-wave output of up to 1.41 W was generated from a two-stage Tm: ZBLAN fiber amplifier with direct ground-state pumping at 793 nm. Seeded by a single-frequency distributed feedback diode laser at 2332 nm, the thulium-doped ZBLAN fiber amplifier emitted a laser with linewidth no more than 10 MHz at maximal output power. This study examines the impact of a 2.3-µm seed on the competitive laser transition of 2 µm. The findings indicate that direct pumping of a Tm fiber amplifier holds the potential for achieving higher power output within the 2.3-µm band.
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