Junjie Wang, Cheng Wang, Yanni Yang, Yangyang Guo. Study on the Effect of New Inner Cladding Shape on Absorption Efficiency of Thulium-Doped Double-Clad Fiber[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1706009
- Laser & Optoelectronics Progress
- Vol. 58, Issue 17, 1706009 (2021)
Fig. 1. Diagram of new inner cladding model
Fig. 2. Schematic diagram of light reflection on arbitrary surface
Fig. 3. Pump absorption characteristics of new inner cladding DCFs with different core diameters
Fig. 4. Pump absorption characteristics of DCFs with different inner cladding shapes
Fig. 5. Diagram of experimental equipments
Fig. 6. Relationship between pump current and pump power when temperature of pump source is 20 ℃
Fig. 7. Relationship between pump current and output power of thulium-doped DCF laser
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