Theoretical and experimental investigations are reported concerning an excess loss due to a lossy outer layer attached to cladding in multimode step-index fibers, for structural design purposes. Equations for the excess loss are derived using electromagnetic theory. Excess loss is measured for fibers fabricated by chemical-vapor inside and outside deposition. The measured values are in good agreement with the calculated ones.
|Number of pages||9|
|Journal||Rev Electr Commun Lab (Tokyo)|
|Publication status||Published - 1978 Jan 1|
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