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Optical fiber composite ground wire and method using steel tube

  • US 6,195,488 B1
  • Filed: 11/18/1999
  • Issued: 02/27/2001
  • Est. Priority Date: 11/18/1998
  • Status: Expired due to Term
First Claim
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1. An optical fiber composite ground wire (OPGW), comprising:

  • a central wire disposed at a center of said optical fiber composite ground wire (OPGW);

    a steel tube disposed radially outward from said central wire and disposed radially outward from said center of said optical fiber composite ground wire (OPGW), said steel tube having a central aperture;

    an optical fiber ribbon disposed in said central aperture of said steel tube, said optical fiber ribbon including a plurality of optical fibers arranged in a coplanar alignment within said optical fiber ribbon, said plurality of optical fibers each respectively forming a communication line in said optical fiber composite ground wire (OPGW);

    a filling material disposed about said optical fiber ribbon in said central aperture of said steel tube;

    an inner layer wire disposed radially outward from said central wire and disposed radially outward from said center of said optical fiber composite ground wire (OPGW); and

    an outer layer wire disposed outward from said steel tube and from said inner layer wire and disposed radially outward from said center of said optical fiber composite ground wire (OPGW), said outer layer wire forming a ground wire in said optical fiber composite ground wire (OPGW).

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