Laser sintered flexible ribbon

Patent metadata

Field	Value
Publication number	US-10379306-B2
Application number	US-201715817338-A
Country	US
Kind code	B2
Filing date	Nov 20, 2017
Priority date	Nov 29, 2016
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

A rollable optical fiber ribbon includes a plurality of optical transmission elements, wherein each optical transmission element includes an optical core surrounded by a cladding of a different refractive index than the optical core, the cladding surrounded by a fiber coating layer, the fiber coating layer having an inner surface contacting the cladding and an outer surface defining an exterior surface of the optical transmission elements; and a coupling element coupled to and supporting the plurality of optical transmission elements in an array. The coupling element forms a chevron pattern and is formed from a flexible polymeric material such that the plurality of optical transmission elements are reversibly movable from an unrolled position in which the plurality of optical transmission elements are substantially aligned with each other to a rolled position.

First claim

What is claimed is:

1. A rollable optical fiber ribbon comprising:
a plurality of optical transmission elements, wherein each optical transmission element includes an optical core surrounded by a cladding of a different refractive index than the optical core, the cladding surrounded by a fiber coating layer, the fiber coating layer having an inner surface contacting the cladding and an outer surface defining an exterior surface of the optical transmission elements; and
a plurality of coupling elements coupled to and supporting the plurality of optical transmission elements in an array, wherein the plurality of coupling elements forms a chevron pattern and is formed from a flexible polymeric material such that the plurality of optical transmission elements are reversibly movable from an unrolled position in which the plurality of optical transmission elements are substantially aligned with each other to a rolled position:
wherein the plurality of optical transmission elements comprises twelve optical fibers; and
wherein at least three pairs of fibers are joined at any one bonding location along a longitudinal length of the ribbon.

2. The rollable optical fiber ribbon of claim 1 , wherein the chevron pattern is continuous across the width of the ribbon.

3. The rollable optical fiber ribbon of claim 1 , wherein the chevron pattern is discontinuous across the width of the ribbon.

4. The rollable optical fiber ribbon of claim 1 , wherein the plurality of coupling elements comprises a sintered polymer powder.

5. The rollable optical fiber ribbon of claim 1 , wherein a longitudinal length of the chevron pattern is greater than 15 millimeters and less than 50 millimeters.

6. The rollable optical fiber ribbon of claim 1 , wherein the array comprises a first side and a second side opposite the first side, and wherein the plurality of coupling elements supports the array from only the first side of the array.

Assignees

• Corning Optical Communications LLC

Inventors

• Bringuier Anne Germaine
• Chiasson David Wesley
• Nayak Barada Kanta

Classifications

• B29C64/153

  using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title

• B29L2011/0075

  Light guides, optical cables · CPC title

• G02B6/448

  Ribbon cables · CPC title

• G02B6/4403 Primary

  with ribbon structure (G02B6/4429, G02B6/4439, G02B6/4479 take precedence) · CPC title

• G02B6/36

  Mechanical coupling means (G02B6/255, G02B6/42 take precedence) · CPC title