Gambling, W.A., Hartog, A.H. and Ragdale, C.M.
Optical fibre transmission lines
The Radio and Electronic Engineer, 51, (7), . (doi:10.1049/ree.1981.0048).
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Optical fibre transmission lines have many advantages over coaxial cables. The most widely used fabrication techniques involve chemical vapour deposition resulting in losses of well below 1 dB/km. Analysis of propagation follows well-defined principles and the results obtained are broadly comparable with those at microwave frequencies, although the wavelength of operation, ~1 µm, is much shorter. By suitable design single-mode fibres can be made to give bandwidth x length products approaching 100 GHz.km. Multimode fibres are now well understood, pose fewer problems and can be excited with light-emitting diodes.
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