Accession Number : ADP000581

Title :   A Refined Tight Design Duct Cable for Low Loss Monomode Fibre,


Personal Author(s) : Hale,P. G. ; Jones,D. Delme ; Ramsay,M. M. ; Russell,J. N. ; Titchmarsh,J. G.

Report Date : NOV 1982

Pagination or Media Count : 6

Abstract : This paper discusses design, manufacturing and installation experience with a simple right design cable for use in ducts. The small outside diameter and low weight, of 7.5 micrometers and 60 kg/micrometers respectively, allow it to be manufactured and installed in lengths in excess of 2 km and the design, including fibre axial compression optimised through optical strain measurements, provides large safety margins against fibre failure under tensile loading. Both multimode and monomode cables have been cabled with zero incremental loss. Under contract with British Telecom a total of 15.6 km of monomode cables were produced. Laboratory operation over 62.4 km at 320 Mb/s was demonstrated and they were installed and spliced to give mean attenuations of 0.49 and 0.33 dB/km at 1.3 and 1.55 micrometer wavelengths respectively. (Author)

Descriptors :   *Fiber optics transmission lines, *Electric cables, *Electric wire, *Symposia, *Ducts, Experimental design, Lightweight, Manufacturing, Installation, International

Distribution Statement : APPROVED FOR PUBLIC RELEASE