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
Based on the self-developed large mode area Yb-doped double-cladding 25/400 μm active fiber with uniform doping and low thermo-optic coefficient, an all-fiber high-power narrow-linewidth fiber laser amplification experiment was carried out. The laser system achieves a single-mode fiber laser output with a maximum power of 2.2 kW, a linewidth of 25 GHz, and a center wavelength of 1060.3 nm, with a slope efficiency of 78% and a beam quality factor of M2≈1.2. This is the highest output power currently reported for narrow-linewidth single-mode amplifiers based on domestic Yb-doped double-cladding 25/400 μm active fiber, to the best of our knowledge.
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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)