Pu Zhou, Jinyong Leng, Hu Xiao, Pengfei Ma, Jiangming Xu, Wei Liu, Tianfu Yao, Hanwei Zhang, Liangjin Huang, Zhiyong Pan. High Average Power Fiber Lasers: Research Progress and Future Prospect[J]. Chinese Journal of Lasers, 2021, 48(20): 2000001
- Chinese Journal of Lasers
- Vol. 48, Issue 20, 2000001 (2021)
![Structural diagram of 2 kW-level fiber laser system reported in 2005[16]](/richHtml/zgjg/2021/48/20/2000001/img_1.jpg)
Fig. 1. Structural diagram of 2 kW-level fiber laser system reported in 2005[16]
![Structural diagram of 10 kW-level single-mode fiber laser[33]](/richHtml/zgjg/2021/48/20/2000001/img_2.jpg)
Fig. 2. Structural diagram of 10 kW-level single-mode fiber laser[33]
Fig. 3. Development data of diode laser in recent years from homepages of nlight Inc. and IPG Inc. (a) Brightness increment data; (b) cost decrement data
Fig. 4. Structural diagram of 4 kW narrow linewidth fiber laser based on tandem pumping scheme[64]
Fig. 5. Structural diagram of 5 kW output power system enabled by power amplification scheme [121]
Fig. 6. Covering ranges of gain-spectra of three typical doped fibers[33]
Fig. 7. Output power scaling of high power Raman laser
Fig. 8. Mid-infrared fiber laser with > 40 W output power[219]. (a) Structural diagram; (b) experimental result
Fig. 9. Structural diagram of 550 W-level all-fiberized single-frequency laser[254]
Fig. 10. 16-lasers coherent beam combining system[292]. (a) Structural diagram; (b) spectrum at maximal output power
Fig. 11. Tunable fiber laser with nearly kilo-nanometer tuning range[310]. (a) Spectra; (b) output power characteristics
Fig. 12. Output characteristics of mode-tunable fiber laser from nlight Inc.[323] .(a) Output spot patterns; (b) transmission parameters and diameters of different spots
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Table 1. Types of fiber lasers according to spectra and main application fields
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