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Monomode multicore optical fibre-cable - has core spacing and cladding dimensions designed to give two propagation wavelengths
Monomode multicore optical fibre-cable - has core spacing and cladding dimensions designed to give two propagation wavelengths
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机译:单模多芯光纤电缆-具有芯间距和包层尺寸,旨在提供两个传播波长
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摘要
Monomode multicore optical fibre has two transmission cores of higher refractive index contained in one cladding of lower refractive index. The differences between the refractive indices of core and cladding and the dimensions and spacings are chosen so that above a certain cut-off wavelength only two orthogonal propagation modes are possible. The modes are of different propagation speeds and there is no cross-coupling between them so if one is used in a fibre the other is prohibited. The multicore design enables one mode in one core and the other in the second core without danger of interraction. A graded index fibre is also available.
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