Xin Cheng, Huawei Jiang, Yan Feng. Research progress of high-power single-frequency erbium-doped fiber laser technology (Invited)[J]. Infrared and Laser Engineering, 2022, 51(6): 20220127

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- Infrared and Laser Engineering
- Vol. 51, Issue 6, 20220127 (2022)

Fig. 1. Schematic diagram of a typical traveling wave cavity erbium-doped fiber laser
![Structure diagram of erbium-doped DFB fiber laser [3]](/richHtml/irla/2022/51/6/20220127/img_2.jpg)
Fig. 2. Structure diagram of erbium-doped DFB fiber laser [3]
![Structure diagram of erbium-doped DBR fiber laser [3]](/Images/icon/loading.gif)
Fig. 3. Structure diagram of erbium-doped DBR fiber laser [3]

Fig. 4. Power development process of high-power continuous-wave single-frequency erbium-doped fiber amplifiers
![Structure diagram of continuous-wave single-frequency erbium-doped fiber amplifier with 151 W output power [56]](/Images/icon/loading.gif)
Fig. 5. Structure diagram of continuous-wave single-frequency erbium-doped fiber amplifier with 151 W output power [56]
![Single-frequency EYDF amplifier with off-peak pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[61]](/Images/icon/loading.gif)
Fig. 6. Single-frequency EYDF amplifier with off-peak pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[61]
![Single-frequency EYDF amplifier with co-seeding pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[59]](/Images/icon/loading.gif)
Fig. 7. Single-frequency EYDF amplifier with co-seeding pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[59]
![Single-frequency EYDF amplifier with in-band pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[69]](/Images/icon/loading.gif)
Fig. 8. Single-frequency EYDF amplifier with in-band pumping scheme. (a) Diagram of structure; (b) Diagram of power curve[69]
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Table 1. Research progress of single-frequency erbium-doped fiber lasers with traveling-wave cavity
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Table 2. Research progress of single-frequency erbium-doped fiber lasers with standing-wave cavity

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