Acta Optica Sinica, Volume. 39, Issue 6, 0636001(2019)
2.2 kW Narrow-Linewidth Single-Mode Laser Output Using Homemade 25/400 μm Yb-Doped Double Cladding Fiber
Fig. 1. Structure diagram of all-fiber high-power narrow-linewidth fiber laser amplifier
Fig. 2. Effect of reducing thermo-optic coefficient on mode instability threshold power
Fig. 3. Mechanism of doping elements in fiber core. (a) Distribution of the Yb ion in quartz glass when molar ratio of phosphorus to aluminum is less than 1; (b) distribution of the Yb ion in quartz glass when molar ratio of phosphorus to aluminum is larger than 1; (c) schematic of fluorine doping mechanism
Fig. 4. Output characteristics of the laser. (a) Experimentally measured laser power and slope efficiency; (b) beam quality and far-field spot at 2.2 kW; (c) forward and backward emission spectrum of 2.2 kW output beam
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Xuewen Li, Chunlei Yu, Lili Hu, Hui Shen, Zhao Quan, Qiurui Li, Fengguang Lou, Meng Wang, Lei Zhang, Yunfeng Qi, Bing He, Jun Zhou. 2.2 kW Narrow-Linewidth Single-Mode Laser Output Using Homemade 25/400 μm Yb-Doped Double Cladding Fiber[J]. Acta Optica Sinica, 2019, 39(6): 0636001
Category: Letters
Received: Apr. 15, 2019
Accepted: May. 5, 2019
Published Online: Jun. 17, 2019
The Author Email: Yu Chunlei (sdycllcy@163.com), Qi Yunfeng (dreamer_7@siom.ac.cn)