Qiubai Yang, Hui Shen, Lei Zhang, Qiurui Li, Chunlei Yu, Yunfeng Qi, Lili Hu. Research Progress on Ytterbium-Doped Silica Glass Fiber for High-Power Narrow-linewidth Fiber Lasers[J]. Laser & Optoelectronics Progress, 2022, 59(15): 1516011
- Laser & Optoelectronics Progress
- Vol. 59, Issue 15, 1516011 (2022)
![Influence of Al2O3 content in Al2O3 crystal derivative fiber [41]. (a) Speed of sound; (b) Brillouin linewidth; (c) absolute Brillouin gain coefficient; (d) relative Brillouin gain coefficient with SMF-28 fiber](/richHtml/lop/2022/59/15/1516011/img_01.jpg)
Fig. 1. Influence of Al2O3 content in Al2O3 crystal derivative fiber [41]. (a) Speed of sound; (b) Brillouin linewidth; (c) absolute Brillouin gain coefficient; (d) relative Brillouin gain coefficient with SMF-28 fiber
![PD induced losses of Yb-doped fibers with different P/Al molar ratios [43]](/richHtml/lop/2022/59/15/1516011/img_02.jpg)
Fig. 2. PD induced losses of Yb-doped fibers with different P/Al molar ratios [43]
![Al-P-B-Si quaternary glass fiber and commercial fiber. (a) BGS; (b) PD induced loss [55]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Al-P-B-Si quaternary glass fiber and commercial fiber. (a) BGS; (b) PD induced loss [55]
Fig. 4. Microstructured large mode field fiber. (a) Cross-sectional image of AS-PCF[59]; (b) cross-sectional image of AS-PBF[62]; (c) (d) cross-sectional images of improved AS-PBF and core area[67]; (e)-(g) schematic diagram, cross-sectional image, and side micrograph of 3C fiber with single core[74]
Fig. 5. Schematic diagrams of different types TDF. (a) Linear type; (b) linear type with smooth ends; (c) spindle type; (d) saddle type [80]
Fig. 6. Multi-material system core acoustic tailoring fiber. (a) Schematic of Al/Ge co-doped Yb-doped fiber [97]; (b) schematic of acoustic tailoring PCF core [99]
Fig. 7. Confined-doped fiber. (a) Designed schematic; (b) refractive index profiles of confined-doped fiber and conventional fiber; elemental distributions of (c) confined-doped fiber and (d) conventional fiber [32]
Fig. 8. Metal clad fiber. (a) Polymer clad; (b) metal clad [118]
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Table 1. Summary of high-power narrow-linewidth fiber lasers based on special large mode area gain fibers
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