OPTICAL FIBER CORE AND OPTICAL FIBER TAPE CORE

Title:

OPTICAL FIBER CORE AND OPTICAL FIBER TAPE CORE

Document Type and Number:

WIPO Patent Application WO/2008/029488

Kind Code:

A1

Abstract:

An optical fiber core housed in an optical fiber cable, in particular, an optical fiber core that suppresses an increase of optical fiber transmission loss attributed to the use environment and aged deterioration through suiting of the optical fiber coating resin and coloring resin. It is intended to provide an optical fiber core, or optical fiber tape core, which avoids any increase of transmission loss attributed to the use environment and aged deterioration, especially exposure to water or high humidity. There is provided an optical fiber core with a cladding of at least two layers of coating resins, wherein the coating resin disposed in the outermost layer is a colored layer of coloring resin, and wherein when the optical fiber core is immersed in water heated at 60°C for 168 hr, the ratio of coating resin leached from the optical fiber core is regulated so as to be 1.5 mass% or less.

Inventors:

NAKAJIMA YASUO (JP)
TANAKA HIROKI (JP)
ARASHITANI YOSHIHIRO (JP)
MOCHIZUKI KOUJI (JP)
OKADA MITSUNORI (JP)

Application Number:

PCT/JP2006/318309

Publication Date:

March 13, 2008

Filing Date:

September 08, 2006

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD (JP)
NAKAJIMA YASUO (JP)
TANAKA HIROKI (JP)
ARASHITANI YOSHIHIRO (JP)
MOCHIZUKI KOUJI (JP)
OKADA MITSUNORI (JP)

International Classes:

G02B6/44

Foreign References:

JP2006113103A	2006-04-27
JPH0933773A	1997-02-07

Other References: