US 12,761,434 B2Granted

Optical fiber ribbon and slot-less optical cable

AssigneeSWCC Corporation

InventorsYuki Ota, Takeshiro Nagai, Kengo Tanabe, Wataru Noro

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Abstract

Disclosed is an optical fiber ribbon (1) in which a plurality of single-core coated optical fibers (11-22) are intermittently connected or separated in a length direction and a width direction while being connected every two cores. The optical fiber ribbon (1) satisfies conditional expressions [1], [2] when the length in the longitudinal direction of a connection portion (3) is denoted by A, the length in the longitudinal direction of a non-connection portion (5) in which separation portions (4) adjacent to each other overlap when viewing the separation portions (4) in the width direction is denoted by C, and the periodic interval in the longitudinal direction between the connection portions (3) is denoted by P. [1]: P≤150 mm [2]: A:C=25-45 mm:10-30 mm

Claims2

Dependent claims

An optical fiber ribbon, comprising:

a plurality of single-core coated optical fibers intermittently coupled to or separated from one another in a length direction and a width direction in a state in which every two of the plurality of single-core coated optical fibers are coupled to each other, wherein
when a length of a coupling portion in a longitudinal direction is denoted by “A,” a length of a non-coupling portion in the longitudinal direction at which separating portions adjacent to each other as seen in the width direction of the separating portions overlap each other is denoted by “C,” and a periodic interval of the coupling portion in the longitudinal direction is defined by “P,” following conditional expressions (1) and (3) are satisfied:
140
⁢
mm
≤
P
≤
150
⁢
mm
(
1
)
A
:
C
=
40
⁢
to
⁢
45
⁢
mm
:
30
⁢
mm
.
(
3
)

30 more elements

Dependencies are inferred from the claim text.