Fiber optic cable assembly

• US 20090003778A1
• Filed: 06/29/2007
• Published: 01/01/2009
• Est. Priority Date: 06/29/2007
• Status: Abandoned Application

• Current Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Nlelsen, Lars Kristian, Craig, Brenda Dianne, Faulkner, Michael Todd, Elkins, Robert Bruce II
• Application Number:
  US11/823,961
• Publication Number:
  US 20090003778A1
• Time in Patent Office: Days
• US Class Current: 385/95
• CPC Class Codes: G02B 6/4475 with provision for lateral branching G02B6/4431 takes precedence

Abstract

A fiber optic cable assembly comprising a fiber optic cable having a plurality of optical fibers disposed within a cable sheath and having an access point through the cable sheath for accessing and preterminating at least one of the plurality of optical fibers, at least one tether attached about the access point, the at least one tether having at least one optical fiber disposed within a cable sheath, and a flexible closure substantially encapsulating the access point, a portion of the fiber optic cable and a portion of the at least one tether. At least one preterminated fiber of the fiber optic cable is spliced to the at least one optical fiber of the at least one tether, and spliced together fiber portions of the at least one preterminated fiber and the at least one tether optical fiber are not maintained within a splice tube.

Claims

1. A fiber optic cable assembly, comprising:

a fiber optic cable having a plurality of optical fibers disposed within a cable sheath and having an access point through the cable sheath for accessing and preterminating at least one of the plurality of optical fibers;

at least one tether attached about the access point, the at least one tether having at least one optical fiber disposed within a cable sheath; and

a flexible closure substantially encapsulating the access point, a portion of the fiber optic cable and a portion of the at least one tether;

wherein at least one preterminated fiber of the fiber optic cable is spliced to the at least one optical fiber of the at least one tether; and

wherein spliced together fiber portions of the at least one preterminated fiber and the at least one tether optical fiber are not maintained within a splice tube.

2. The fiber optic cable assembly according to claim 1, wherein the spliced together fiber portions are wrapped about the plurality of optical fibers of the fiber optic cable.

3. The fiber optic cable assembly according to claim 1, wherein the spliced together fiber portions are wrapped in a first direction and then wrapped in a reverse direction about the plurality of optical fibers of the fiber optic cable.

4. The fiber optic cable assembly according to claim 1, wherein the assembly includes at least a first tether attached and exiting about a first end of the access point and a second tether attached and exiting about a second end of the access point.

5. The fiber optic cable assembly according to claim 1, wherein the spliced together fiber portions of optical fibers are nanostructured optical fibers.

6. The fiber optic cable assembly according to claim 1, further comprising a preferential bend element having a predetermined shape to provide variable preferential stiffness.

7. The fiber optic cable assembly according to claim 1, wherein the fiber optic cable further comprises armor and wherein the armor at the access location is broken and electrically bridged using a bridging element.

8. The fiber optic cable assembly according to claim 7, wherein the bridging element also functions as a preferential bend element.

9. The fiber optic cable assembly according to claim 1, wherein the spliced together fiber portions are covered with a viscous boundary layer.

10. The fiber optic cable assembly according to claim 9, wherein the cable assembly further comprises a trough that provides a location to apply the viscous boundary layer.

11. A fiber optic cable assembly, comprising:

a fiber optic cable having a plurality of optical fibers disposed within a cable sheath and having an access point through the cable sheath for accessing and preterminating the plurality of optical fibers;

at least one tether attached about a first end of the access point and comprising at least one optical fiber disposed within a cable sheath;

at least one tether attached about a second end of the access point and comprising at least one optical fiber disposed within a cable sheath; and

a flexible closure substantially encapsulating the access point, a portion of the fiber optic cable and a portion of the at least one tethers;

wherein preterminated fibers of the fiber optic cable are spliced to the at least one optical fibers of the at least one tethers; and

wherein spliced together fiber portions are not maintained within a splice tube.

12. The fiber optic cable assembly according to claim 11, wherein the spliced together fiber portions are wrapped about the plurality of optical fibers of the fiber optic cable.

13. The fiber optic cable assembly according to claim 11, wherein the spliced together fiber portions are nanostructured optical fibers.

14. The fiber optic cable assembly according to claim 11, further comprising a preferential bend element having a predetermined shape to provide variable preferential stiffness.

15. The fiber optic cable assembly according to claim 11, wherein the fiber optic cable further comprises armor and wherein the armor at the access location is broken and electrically bridged using a bridging element.

16. The fiber optic cable assembly according to claim 15, wherein the bridging element also functions as a preferential bend element.

17. The fiber optic cable assembly according to claim 11, wherein the spliced together fiber portions are covered with a viscous boundary layer.

18. The fiber optic cable assembly according to claim 17, wherein the cable assembly further comprises a trough that provides a location to apply the viscous boundary layer.

19. A fiber optic cable assembly, comprising:

a fiber optic cable having a plurality of optical fibers disposed within a cable sheath and having an access point through the cable sheath for accessing and preterminating at least one of the plurality of optical fibers;

at least one tether attached about the access point, the at least one tether having at least one optical fiber disposed within a cable sheath; and

a protective covering over the access location;

wherein at least one preterminated fiber of the fiber optic cable is spliced to the at least one optical fiber of the at least one tether;

wherein spliced together fiber portions of the at least one preterminated fiber and the at least one tether optical fiber are not maintained within a splice tube; and

wherein the spliced together fiber portions are wrapped about a core of the fiber optic cable.

20. The fiber optic cable assembly according to claim 19, wherein the fiber optic cable further comprises armor and wherein the armor at the access location is broken and electrically bridged using a bridging element.