Optical waveguides – Optical transmission cable – Tightly confined
Patent
1990-02-28
1991-09-24
Ullah, Akm
Optical waveguides
Optical transmission cable
Tightly confined
G02B 644
Patent
active
050509586
ABSTRACT:
An optical fibre cable comprising a generally non-metallic central core encased in a rigid metallic tube, at least one layer of longitudinal strength members which, or the inner one of which, overlays and is in contact with the rigid metallic tube, and a sheath overlaying the strength member layer, the layer of strength members including, in a respective gap or gaps, at least one longitudinally-welded metallic tube within which is encased at least one optical fibre.
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patent: 4365865 (1982-12-01), Stiles
patent: 4371234 (1983-02-01), Parfree et al.
patent: 4389088 (1983-06-01), Trezequet
patent: 4730894 (1988-03-01), Arroyo
patent: 4907855 (1990-03-01), Oestreich
patent: 4913516 (1990-04-01), Ikeda
patent: 4971420 (1990-11-01), Smith
O'Bow-Hove Philip A.
Smith Lawrence I.
Heartney Phan T.
Telephone Cables Limited
Ullah Akm
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