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Method of manufacturing reinforced optical fiber

  • US 4,886,562 A
  • Filed: 03/31/1987
  • Issued: 12/12/1989
  • Est. Priority Date: 03/31/1987
  • Status: Expired due to Term
First Claim
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1. A method of manufacturing reinforced optical fiber comprising the steps of:

  • conveying an elongated optical fiber from a source;

    symmetrically, coaxially winding reinforcing fiber to a selected density per unit length around said optical fiber to form a reinforcing-fiber covered optical fiber;

    immersing said reinforcing-fiber covered optical fiber in an resin bath for a predetermined time to form a flexible resin matrix among said wound reinforcing fibers to form a resin-coated optical fiber;

    passing said resin-coated optical fiber through a first sizing die to remove excess resin from and to shape the resin coating of said optical fiber to form a shaped resin-coated optical fiber;

    passing said shaped resin-coated optical fiber through an oven to cure said resin to form a cured resin-coated optical fiber;

    coating said cured resin-coated optical fiber with an external coating material to form a coated optical fiber;

    passing said coated optical fiber through a second sizing die to shape and to remove excess external coating to form a reinforced optical fiber; and

    storing said reinforced optical fiber on a reel.

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