High-bandwidth anti-bending multimode fiber
一种多模光纤、高带宽的技术,应用在光通信领域,能够解决不具有抗弯曲性能、多模光纤无法满足WDM技术应用要求等问题,达到优异抗弯曲性能、带宽-波长敏感性降低、带宽性能优化的效果
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Embodiment 1
[0041] Embodiment 1: The optical fiber includes a core layer and a cladding layer. The refractive index profile of the core layer is parabolic, the distribution index α is 2.01, the radius R1 of the core layer is 25.3 μm, and the maximum relative refractive index difference at the center of the core layer is Δ1 max is 0.98%, the core layer is co-doped with germanium and fluorine, and the mass percentage of fluorine content in the core layer is distributed along the radius with a certain value C F 3×10 -3 , the cladding from the inside to the outside is the inner cladding, the sunken cladding and the outer cladding. The radius of the inner cladding R2 is 29.7 μm, and the relative refractive index difference Δ2 is -0.02%. The depressed cladding radius R3 is 35.9 μm, and the relative refractive index difference Δ3 is -0.55%. The structure and performance test results of the obtained optical fiber are shown in Table 1. image 3 is the refractive index profile and F doping amoun...
Embodiment 2
[0042] Embodiment 2: A multimode optical fiber prepared according to the technical solution of the present invention. The optical fiber includes a core layer and a cladding layer. The refractive index profile of the core layer is parabolic, the distribution index α is 2.06, the radius R1 of the core layer is 24.8 μm, and the maximum relative refractive index difference at the center of the core layer is Δ1 max is 1.12%, the core layer is a germanium-fluorine co-doped silica glass layer, and the mass percentage of fluorine content in the core layer is distributed along the radius according to the following formula:
[0043] C F ( r ) = C F , min + C F ′ × r R 1 × ...
Embodiment 3
[0045] Embodiment 3: a multimode optical fiber prepared according to the technical solution of the present invention. The optical fiber includes a core layer and a cladding layer. The refractive index profile of the core layer is parabolic, the distribution index α is 2.09, the radius R1 of the core layer is 25.5 μm, and the maximum relative refractive index difference at the center of the core layer is Δ1 max The core layer is a germanium-fluorine co-doped silica glass layer, and the mass percentage of fluorine content in the core layer is distributed along the radius according to the following formula:
[0046] C F ( r ) = G F , min + C F ′ × r R 1 × ...
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