Liu Chang, Pei Li, Xie Yuheng, Wang Jianshuai, Zheng Jingjing, Ning Tigang, Li Jing. Design of Low Crosstalk Few Mode Multi-Core Fiber Based on Heterogeneous Structure[J]. Chinese Journal of Lasers, 2020, 47(11): 1106004
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- Chinese Journal of Lasers
- Vol. 47, Issue 11, 1106004 (2020)
Fig. 1. Refractive index profile of ring core
Fig. 2. Variation curve of the effective refractive index of the optical fiber with r1
Fig. 3. Variation of the LP01 mode with the core radius r1 and Δ
Fig. 4. Variation curve of effective refractive index with working wavelength in different modes
Fig. 5. Variation curve of differential mode delay with wavelength
Fig. 6. Variation curve of inter-core crosstalk with core pitch
Fig. 7. Relationship between crosstalk between cores and bending radius at different d. (a) LP01 mode; (b) LP11 mode; (c) LP21 mode
Fig. 8. Cross-sectional views of 12-core fiber with different core arrangements. (a) ORS; (b) SLS
Fig. 9. Variation curve of bending loss with cladding thickness
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Table 1. Parameters of heterogeneous core and Aeff of each mode
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Table 2. Parameters of 12-core fiber in different arrangements
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Table 3. Designed fiber structure parameters and optical performance
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