材料科学
光学
光纤激光器
激光器
纤维
Crystal(编程语言)
计算机科学
物理
复合材料
程序设计语言
作者
Jian Liu,Jifei Dong,Yinyin Wang,Jun Guo,Yongqiang Xue,Jun Xu,Yongguang Zhao,Xiaodong Xu,Haohai Yu,Zhengping Wang,Xinguang Xu,Weidong Chen,Valentín Petrov
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-09-03
卷期号:46 (18): 4454-4454
被引量:13
摘要
In this Letter, to the best of our knowledge, we present the first thulium (Tm) single-crystal fiber (SCF) laser with free-space propagation of the laser beam only. The SCF is equipped with diffusion-bonded end caps of undoped YAG for better thermal management and enhancement of pump guiding. By utilizing mode matching and pump guiding in different SCF parts, an output power of 9.1 W is achieved at ∼ 2.02 µ m with a slope efficiency of 49.4%. This straightforward approach, which is also simple to realize and is based on combining the advantages of fiber-geometry structure and crystalline properties of Tm:YAG, is expected to be useful for 2 µm amplification stages in different time formats as well.
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