Fiber optic cables and assemblies and the performance thereof

• US 20080298758A1
• Filed: 12/13/2006
• Published: 12/04/2008
• Est. Priority Date: 12/13/2006
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Johnson, John B.
• Granted Patent: US 7,680,380 B2
• Time in Patent Office: Days
• US Class Current: 385/123
• CPC Class Codes: G02B 6/02366 Single ring of structures, e.g. "air clad"
• CPC Class Codes: G02B 6/0365 arranged - - +

Abstract

A fiber optic jumper assembly comprising at least one bend performance optical fiber comprising a core region and a cladding region surrounding the core region, the cladding region comprising an annular hole-containing region comprised of non-periodically disposed holes, a protective covering positioned over the at least one bend performance optical fiber, and at least one connector mounted upon each end of the at least one bend performance optical fiber. A preconnectorized fiber optic jumper assembly comprising a microstructured fiber having a delta attenuation of 0.00 dB at 5 wraps about a 6 mm diameter at a reference wavelength of 1625 nm.

Claims

1. A fiber optic jumper assembly, comprising:

at least one bend performance optical fiber comprising a core region, a hole-free inner annular cladding region surrounding the core region, an annular hole-containing cladding region surrounding the inner annular cladding region and comprised of non-periodically disposed holes, and an outer hole-free cladding region surrounding the annular hole-containing cladding region;

a protective covering positioned over the at least one bend performance optical fiber; and

at least one connector mounted upon each end of the at least one bend performance optical fiber.

2. The jumper assembly of claim 1, wherein the jumper assembly has a delta attenuation of 0.11 dB or less at one turn about a 10 mm diameter structure at a reference wavelength of 1625 nanometers.

3. The jumper assembly of claim 1, wherein the jumper assembly has a delta attenuation of 0.93 dB or less at five turns about a 10 mm diameter structure at a reference wavelength of 1625 nanometers.

4. The jumper assembly of claim 1, wherein the jumper assembly has a delta attenuation of 0.46 dB or less at one turn about a 6 mm diameter structure at a reference wavelength of 1625 nanometers.

5. The jumper assembly of claim 1, wherein the jumper assembly has a delta attenuation of 3.12 dB or less at five turns about a 6 mm diameter at a reference wavelength of 1625 nanometers.

6. The jumper assembly of claim 1, wherein the at least one bend performance optical fiber has a 12 mm macrobend induced loss at 1550 nm of less than 0.1 dB/turn.

7. The jumper assembly of claim 1, wherein the at least one bend performance optical fiber has a 12 mm macrobend induced loss at 1550 nm of less than 0.05 dB/turn.

8. The jumper assembly of claim 1, wherein the at least one bend performance optical fiber has an 8 mm macrobend induced loss at 1550 nm of less than 0.2 dB/turn.

9. The jumper assembly of claim 1, wherein the at least one bend performance optical fiber has an 8 mm macrobend induced loss at 1550 nm of less than 0.1 dB/turn.

21. The fiber optic jumper assembly of claim 1, wherein the core region has a radius R1 in the range from 1 μ

m to 5 μ

m, the inner annular cladding region has an inner radius R2 in the range from 10 μ

m to 20 μ

m, and the annular hole-containing cladding region has an annular width W23 in the range from 0.5 μ

m to 20 μ

m.

10. A preconnectorized fiber optic jumper assembly comprising:

a microstructured fiber having a hole-free inner annular cladding region surrounding the core region, an annular hole-containing cladding region surrounding the inner annular cladding region and comprised of non-periodically disposed holes, and an outer hole-free cladding region surrounding the annular hole-containing cladding region, wherein the core region has a radius R1 in the range from 1 μ

m to 5 μ

m the inner annular cladding region has an inner radius R2 in the range between 10 μ

m and 20 μ

m, and the annular hole-containing cladding region has an annular width W23 in the range from 0.5 μ

m to 20 μ

m; and

wherein the microstructure fiber has a delta attenuation of 0.00 dB at 5 wraps about a 6 mm diameter at a reference wavelength of 1625 nm.

12. The preconnectorized jumper assembly of claim 10, wherein the microstructured fiber has 12 mm macrobend induced loss at 1550 nm of less than 0.1 dB/turn.

13. The preconnectorized jumper assembly of claim 10, wherein the microstructured fiber has a 12 mm macrobend induced loss at 1550 nm of less than 0.05 dB/turn.

14. The preconnectorized jumper assembly of claim 10, wherein the microstructured fiber has an 8 mm macrobend induced loss at 1550 nm of less than 0.2 dB/turn.

15. The preconnectorized jumper assembly of claim 10, wherein the microstructured fiber has an 8 mm macrobend induced loss at 1550 nm of less than 0.1 dB/turn.

11. (canceled)

16. A fiber optic assembly for performing interconnections within a fiber optic network, the assembly comprising:

at least one microstructured optical fiber having an outer surface and comprising a core region that is surrounded by a cladding region that comprises randomly disposed cladding material voids that are contained within an annular region spaced from the core and outer surface by respective a hole-free inner and outer cladding regions, the void-containing annular region having a radial width W23 in the range from 0.5 μ

m to 20 μ

m;

a protective covering surrounding at least a portion of the at least one microstructured optical fiber; and

at least one connector mounted upon at least one end of the at least one microstructured optical fiber.

18. The fiber optic assembly of claim 16, wherein the assembly has a delta attenuation of 0.11 dB or less when wrapped one turn about a 10 mm diameter structure at a reference wavelength of 1625 nm.

19. The fiber optic assembly of claim 16, wherein the assembly has a delta attenuation of 0.46 or less when wrapped one turn about a 6 mm diameter structure at a reference wavelength of 1625 nm.

20. The fiber optic assembly of claim 16, wherein the assembly has a delta attenuation of 0.00 when wrapped 5 turns about a 6 mm diameter structure at a reference wavelength of 1625 nm.

22. The fiber optic jumper assembly of claim 16, wherein the core region has a radius R1 in the range from 1 μ

m to 5 μ

m, the inner annular cladding region has an inner radius R2 in the range from 10 μ

m to 20 μ

m, and the annular hole-containing cladding region has an annular width W23 in the range from 0.5 μ

m to 20 μ

m.

17. (canceled)