Weicheng Chen, Guijun Hu, Feng Liu, Cuiguang Chen, Boran Wang. Measurement of Mode Coupling at a Splice Point Between Few-Mode Fiber[J]. Acta Optica Sinica, 2017, 37(12): 1206005
- Acta Optica Sinica
- Vol. 37, Issue 12, 1206005 (2017)
Fig. 1. Schematic for splicing two FMFs with off-axis distance of d
Fig. 2. Rayleigh backscattering power distribution. (a) LP01 mode excited; (b) LP11a mode excited
Fig. 3. Experimental measurement system of mode coupling at a splice point based on few-mode fiber
Fig. 4. Backscattering power distribution of the LP01 and LP11a modes with LP01 mode excited (d=1.5 μm)
Fig. 5. Backscattering power distribution of the LP11a and LP11b modes with LP11a mode excited (d=1.5 μm)
Fig. 6. Backscattering power distribution of the LP01 and LP11a modes with LP01 mode excited (d=2.0 μm)
Fig. 7. Backscattering power distribution of the LP11a and LP11b modes with LP11a mode excited (d=2.0 μm)
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Table 1. Related parameters of few-mode fiber
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Table 2. Mode-coupling between FMFs measured with backscattering method
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