Miao Meng, De-Xian Yan, Jiu-Sheng Li, Shuai Sun. Research on negative curvature terahertz fiber based on nested triangle structure cladding [J]. Acta Physica Sinica, 2020, 69(16): 167801-1
- Acta Physica Sinica
- Vol. 69, Issue 16, 167801-1 (2020)
Fig. 1. Structure of negative curvature hollow core fiber with nested triangle structure.
Fig. 2. (a) Confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d)core power ratio versus frequency.
Fig. 3. Fiber mode field distribution. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.
Fig. 4. Structure diagram of external bending negative curvature fiber.
Fig. 5. (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.
Fig. 6. The distribution of mode field of external bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.
Fig. 7. Internal bending negative curvature fiber structure diagram.
Fig. 8. (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.
Fig. 9. The distribution of mode field of internal bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.
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Table 1.
Performance comparison between the designed optical fiber structure and other structures.
设计的光纤结构与其他结构的性能对比
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