Reduced-diameter, easy-access loose tube cable

Details Reduced-diameter, easy-access loose tube cable Reduced-diameter, easy-access loose tube cable

2009-11-10

2011-10-04

Kim, Ellen (Department: 2874)

Optical waveguides

Optical transmission cable

Loose tube type

C385S112000, C385S113000, C385S128000

Reexamination Certificate

active

08031997

ABSTRACT:
Disclosed is an improved optical fiber that employs a novel coating system. When combined with a bend-insensitive glass fiber, the novel coating system according to the present invention yields an optical fiber having exceptionally low losses. The coating system features (i) a softer primary coating with excellent low-temperature characteristics to protect against microbending in any environment and in the toughest physical situations and, optionally, (ii) a colored secondary coating possessing enhanced color strength and vividness. The improved coating system provides optical fibers that are useful in relatively thin-walled, low-modulus buffer tubes (i.e., “flextubes”) that can be readily accessed without special tools.

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