Micromodule cables and breakout cables therefor

Patent metadata

Field	Value
Publication number	US-8934747-B2
Application number	US-201314050903-A
Country	US
Kind code	B2
Filing date	Oct 10, 2013
Priority date	Feb 16, 2009
Publication date	Jan 13, 2015
Grant date	Jan 13, 2015

Abstract

A breakout cable includes a polymer jacket and a plurality of micromodules enclosed within the jacket. Each micromodule has a plurality of bend resistant optical fibers and a polymer sheath comprising PVC surrounding the bend resistant optical fibers. Each of the plurality of bend resistant optical fibers is a multimode optical fiber including a glass cladding region surrounding and directly adjacent to a glass core region. The core region is a graded-index glass core region, where the refractive index of the core region has a profile having a parabolic or substantially curved shape. The cladding includes a first annular portion having a lesser refractive index relative to a second annular portion of the cladding. The first annular portion is interior to the second annular portion. The cladding is surrounded by a low modulus primary coating and a high modulus secondary coating.

First claim

What is claimed is:

1. A micromodule cable, comprising:
an outer jacket;
a plurality of breakout units enclosed in the outer jacket, each breakout unit having a plurality of micromodules, a jacket enclosing the micromodules, and an aramid strain relief element adjacent to the jacket, with each micromodule having at least one bend resistant optical fiber and a polymer sheath surrounding the at least one bend resistant optical fiber, wherein the at least one bend resistant optical…

Assignees

• Corning Cable Sys Llc

Inventors

• Conrad Craig Miller
• Hurley William Carl
• Smith David Henry

Classifications

• G02B6/4432

  Physics · mapped topic

• G02B6/4401 Primary

  Physics · mapped topic

• G02B6/0365 Primary

  Physics · mapped topic

• G02B6/4411

  Physics · mapped topic

• G02B6/0288

  Physics · mapped topic