OPTICAL FIBER UNIT AND OPTICAL FIBER CABLE

Title:

OPTICAL FIBER UNIT AND OPTICAL FIBER CABLE

Document Type and Number:

WIPO Patent Application WO/2017/199494

Kind Code:

A1

Abstract:

[Problem] When bundle materials having a width greater than the thickness in cross-section are wound around an optical fiber bundle in an SZ shape, twisting occurs in the bundle materials at locations at which the winding direction is inverted, and the bundle materials become joined in a shape of being upright from the optical fiber bundle. [Solution] The present disclosure is an optical fiber unit provided with an optical fiber bundle in which a plurality of optical fiber core wires are bundled, and a plurality of bundle materials. One of the plurality of bundle materials is wound on the outer periphery of the optical fiber bundle along the longitudinal direction of the optical fiber bundle while alternately inverting the winding direction, and joined to another bundle material at locations at which the winding direction is inverted. The width of the bundle material is less than 20 times the thickness of the bundle material in cross-section.

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Inventors:

ITO NAOTO (JP)
OSATO KEN (JP)
YAMANAKA MASAYOSHI (JP)

Application Number:

PCT/JP2017/005476

Publication Date:

November 23, 2017

Filing Date:

February 15, 2017

Export Citation:

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Assignee:

FUJIKURA LTD (JP)

International Classes:

G02B6/44

Domestic Patent References:

WO2015053146A1	2015-04-16
WO2015052951A1	2015-04-16

Foreign References:

JP2012088454A	2012-05-10
US20030091307A1	2003-05-15

Other References: