Optical fiber cable and assembly
First Claim
1. An optical communication cable assembly, comprising:
- an outer cable jacket;
a first tensile strength element surrounded by the outer cable jacket;
a plurality of optical transmission units surrounded by the outer cable jacket, each optical transmission unit comprising;
an inner jacket defining a passage;
a plurality of elongate optical transmission elements located within the passage; and
a second tensile strength element located within the passage;
a furcation unit, wherein the first tensile strength element and the inner jackets of the plurality of optical transmission units are coupled to the furcation unit, wherein the plurality of elongate optical transmission elements and the second tensile strength element of each of the plurality of optical transmission units extend through the furcation unit without being coupled to the furcation unit,wherein when each optical transmission unit experiences a subunit compression and a maximum rated cable load is applied to the optical communication cable assembly, a percentage of the subunit compression is between 0.1% and 2.5%, with respect to an initial length of a portion of the optical transmission unit between the furcation unit and an optical connector coupled to the furcation unit, andwherein the optical connector comprises a spring compressed below a level of maximum allowed compression and providing a force to a ferrule.
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Accused Products
Abstract
An optical cable assembly is provided. The cable assembly includes a plurality of subunits surrounded by an outer cable jacket, a furcation unit and optical connectors coupled to the end of each of the subunits. Each of the subunits includes an inner jacket, a plurality of optical fibers; and a tensile strength element. The first tensile strength element and the inner jackets of each subunits are coupled to the furcation unit, and the optical fibers and tensile strength elements of each subunit extend through the furcation unit without being coupled to the furcation unit. The subunit tensile strength element and optical fibers of each subunit are balanced such that both experience axial loading applied to the assembly and, under various loading conditions, the compression of the subunits is controlled and/or the axial loading of the optical fibers is limited to allow proper function of the optical connector.
23 Citations
15 Claims
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1. An optical communication cable assembly, comprising:
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an outer cable jacket; a first tensile strength element surrounded by the outer cable jacket; a plurality of optical transmission units surrounded by the outer cable jacket, each optical transmission unit comprising; an inner jacket defining a passage; a plurality of elongate optical transmission elements located within the passage; and a second tensile strength element located within the passage; a furcation unit, wherein the first tensile strength element and the inner jackets of the plurality of optical transmission units are coupled to the furcation unit, wherein the plurality of elongate optical transmission elements and the second tensile strength element of each of the plurality of optical transmission units extend through the furcation unit without being coupled to the furcation unit, wherein when each optical transmission unit experiences a subunit compression and a maximum rated cable load is applied to the optical communication cable assembly, a percentage of the subunit compression is between 0.1% and 2.5%, with respect to an initial length of a portion of the optical transmission unit between the furcation unit and an optical connector coupled to the furcation unit, and wherein the optical connector comprises a spring compressed below a level of maximum allowed compression and providing a force to a ferrule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An optical communication cable assembly, comprising:
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an outer cable jacket; a first tensile strength element surrounded by the outer cable jacket; a subunit, comprising; an inner jacket defining a passage; a plurality of optical fibers located within the passage; a second tensile strength element located within the passage; a furcation unit, wherein the first tensile strength element and the inner jacket of the subunit are coupled to the furcation unit, wherein the plurality of optical fibers and the second tensile strength element of the subunit extend through the furcation unit without being coupled to the furcation unit; and an optical connector coupled to an end of the subunit; wherein when the subunit experiences a subunit compression of a portion of the subunit located between the furcation unit and the optical connector and a maximum rated cable load is applied to the cable assembly, a percentage of the subunit compression is between 0.1% and 2.5%, with respect to an initial length of the portion of the subunit between the furcation unit and the optical connector, and wherein the optical connector comprises a spring compressed below a level of maximum allowed compression and providing a force to a ferrule. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification