Optical waveguides – Optical transmission cable – With electrical conductor in the same cable
Patent
1991-05-31
1993-04-13
Lee, John D.
Optical waveguides
Optical transmission cable
With electrical conductor in the same cable
385107, G02B 644
Patent
active
052029441
ABSTRACT:
A cable containing an optical fiber for conducting communication signals and electrical conductors for conducting power. The optical fiber is centrally located. An inner layer includes electrical conductors and an outer layer includes electrical conductors interspaced with strength members. The interspaced strength members are in electrical contact with the electrical conductors and lower the loop resistance so that a power source may be used at one end of the cable and the equipment to be powered at the other without requiring an excessively large voltage at the power source. In one embodiment, the strength members are formed of steel and are interspaced such that there is one strength member per two electrical conductors. The cable is enclosed in a smooth and continuous stainless steel outer sheath.
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Lee John D.
Ngo John
Westech Geophysical, Inc.
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