Splice protector for fiber optic ribbons

Patent metadata

Field	Value
Publication number	US-9360624-B2
Application number	US-201414206392-A
Country	US
Kind code	B2
Filing date	Mar 12, 2014
Priority date	Mar 22, 2013
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A fiber optic cable assembly includes first and second fiber optic ribbons and a splice protector. The ribbons are spliced together such that the corresponding spliced fibers at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes. The splice protector supports the ribbons that are spliced to one another at the splice. The splice protector may include or even consist essentially of an adhesive that provides a flexible support for the splice. The splice protector may be at least half as flexible when cured over the splice as the first and second ribbons in bending about the widthwise axis.

First claim

What is claimed is:

1. A fiber optic assembly, comprising:
first and second fiber optic ribbons, each comprising a plurality of optical fibers coupled in an arrangement where the optical fibers are aligned side-by-side with one another, wherein the optical fibers of the first ribbon are spliced with the optical fibers of the second ribbon such that the spliced ribbons at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes; and
a splice protector supporting the optical fibers of the first and second fiber optic ribbons that are spliced to one another at the splice, wherein the splice protector comprises an adhesive that provides a flexible support for the splice, wherein the splice protector is at least half as flexible when cured over the splice as the first and second ribbons in bending about the widthwise axis, and wherein the splice protector is at least 60% as flexible as the first and second ribbons in bending about the widthwise axis.

2. The fiber optic assembly of claim 1 , wherein the splice protector has a low-profile, having a thickness in the thickness axis that is less than 1 mm thicker than either the first or second fiber optic ribbons in the thickness axis.

3. The fiber optic assembly of claim 2 , wherein the splice protector has a narrow-profile, having a width in the width axis that is less that 1 mm wider than either the first or second fiber optic ribbons in the width axis.

4. The fiber optic assembly of claim 1 , wherein the splice protector is at least as flexible as the first and second ribbons in bending about the widthwise axis.

5. The fiber optic assembly of claim 1 , wherein the splice protector does not include a substrate.

6. The fiber optic assembly of claim 1 , wherein the splice protector consists of UV-curable adhesive.

7. A fiber optic assembly, comprising:
first and second fiber optic ribbons, each comprising a plurality of optical fibers coupled in an arrangement where the optical fibers are aligned side-by-side with one another, wherein the optical fibers of the first ribbon are spliced with the optical fibers of the second ribbon such that the spliced ribbons at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes; and
a splice protector supporting the optical fibers of the first and second fiber optic ribbons that are spliced to one another at the splice, wherein the splice protector comprises an ultra-violet light (UV-) curable adhesive facilitating a controlled profile for the splice protector;
wherein the splice protector has a low-profile, having a thickness in the thickness axis that is less than 1 mm thicker than either the first or second fiber optic ribbons in the thickness axis; and
wherein the splice protector has a narrow-profile, having a width in the width axis that is less that 1 mm wider than either the first or second fiber optic ribbons in the width axis, and wherein the thickness of the splice protector is less than 0.75 mm thicker than either the first or second fiber optic ribbons in the thickness axis.

8. The fiber optic assembly of claim 7 , wherein the thickness of the splice protector is less than 0.5 mm thicker than either the first or second fiber optic ribbons in the thickness axis.

9. The fiber optic assembly of claim 7 , wherein the width of the splice protector is less that 0.75 mm wider than either the first or second fiber optic ribbons in the width axis.

10. The fiber optic assembly of claim 7 , wherein the width of the splice protector is less that 0.5 mm wider than either the first or second fiber optic ribbons in the width axis.

11. The fiber optic assembly of claim 7 , wherein the splice protector does not include a substrate.

12. The fiber optic assembly of claim 11 , wherein the splice protector consists of UV-curable adhesive.

13. A fiber optic assembly, comprising:
first and second fiber optic ribbons, each comprising a plurality of optical fibers coupled in an arrangement where the optical fibers are aligned side-by-side with one another, wherein the optical fibers of the first ribbon are spliced with the optical fibers of the second ribbon such that the spliced ribbons at the splice have a common lengthwise axis, widthwise axis orthogonal to the lengthwise axis, and thickness axis orthogonal to the lengthwise and widthwise axes; and
a splice protector supporting the optical fibers of the first and second fiber optic ribbons that are spliced to one another at the splice,
wherein the splice protector consists essentially of an adhesive that provides a flexible support for the splice, and
wherein the splice protector is at least 60% as flexible as the first and second ribbons in bending about the widthwise axis.

14. The fiber optic assembly of claim 13 , wherein the splice protector consists of the adhesive.

15. The fiber optic assembly of claim 14 , wherein the adhesive is an ultra-violet light (UV-) curable adhesive.

16. The fiber optic assembly of claim 13 , wherein the splice protector has a low-profile, having a thickness in the thickness axis that is less than 1 mm thicker than either the first or second optical fibers in the thickness axis.

17. The fiber optic assembly of claim 13 , wherein the splice protector has a narrow-profile, having a width in the width axis that is less that 1 mm wider than either the first or second optical fibers in the width axis.

Assignees

• Corning Optical Comm Llc

Inventors

• Faulkner Michael Todd
• Nielsen Lars Kristian

Classifications

• G02B6/2558 Primary

  Reinforcement of splice joint · CPC title

• G02B6/448

  Ribbon cables · CPC title

• G02B6/4495

  Physics · mapped topic

• G02B6/4431

  with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping (break-out terminations G02B6/4471) · CPC title