Fiber optic cables with strength members and methods of making the same
AssigneeCorning Cable Systems LLC
InventorWilliam C. Hurley
Life of this patent
Estimating the term…
Abstract
A fiber optic cable and method of manufacturing the same include at least one optical fiber component and at least one strength member disposed adjacent to said at least one optical fiber component. The at least one strength member includes a yarn and a jacket generally surrounding said at least one optical fiber component and said at least one strength member. The yarn includes a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less. Other embodiments can include a delta attenuation of about 0.3 dB or less over the range of about 0% to about 1.0% of optical fiber strain, a peak cable core pull-out force of about 1 newton or less, or a space disposed between a cable core and the jacket.
Claims58
A fiber optic cable, comprising:
- at least one optical fiber component;
- at least one strength member disposed adjacent to said at least one optical fiber component, said at least one strength member comprising a yarn;
- said yarn including a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less;
- and
- a jacket generally surrounding said at least one optical fiber component and said at least one strength member.
A fiber optic cable, comprising:
- at least one optical fiber component stranded around a central member;
- a plurality of strength members forming a first layer stranded around said at least one optical fiber component, said plurality of strength members comprising at least one yarn;
- said yarn including a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less;
- a jacket generally surrounding said at least one optical fiber component, central member and said plurality of strength members;
- and
- said central member, said at least one optical fiber component and said first layer comprising a cable core having a peak pull-out force of about 1 newton or less.
A fiber optic cable, comprising:
- at least one tight-buffered optical fiber component stranded around a central member;
- a plurality of strength members forming a first layer stranded around said at least one optical fiber component, said plurality of strength members comprising at least one yarn;
- said yarn including a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less;
- and
- a space having a range of about 0.03 millimeters to about 1.0 millimeters, at the time of extrusion, disposed between said plurality of strength members and a jacket generally surrounding said at least one optical fiber component, central member and said plurality of strength members.
A method of manufacturing a fiber optic cable comprising:
- paying off at least one optical fiber component and at least one strength member, said at least one strength member including at least one yarn, said yarn including a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less;
- defining a cable core by placing said at least one strength member adjacent to said at least one optical fiber component;
- and
- extruding a jacket around said core.
A fiber optic cable, comprising:
- at least one optical fiber component;
- at least one strength member disposed adjacent to said at least one optical fiber component, said at least one strength member comprising a yarn;
- said yarn including a coating system having a percentage by weight, based on the dry weight of said yarn, of about 2.0% or less;
- a jacket generally surrounding said at least one optical fiber component and said at least one strength member;
- and
- said cable having a delta attenuation of about 0.3 dB or less over the range of about 0% fiber strain to about 1.0% fiber strain.
A fiber optic cable, comprising:
- at least one optical fiber component;
- at least one strength member disposed adjacent to said at least one optical fiber component;
- a jacket generally surrounding said at least one optical fiber component and said at least one strength member;
- said cable having a delta attenuation of about 0.3 dB or less over the range of about 0% fiber strain to about 1.0% fiber strain;
- and
- said at least one optical fiber component and said at least one strength member comprising a cable core having a peak pull-out force of about 1 newton or less.
Dependencies are inferred from the claim text.