JP4629921B2 - Optical fiber bundle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical fiber bundle.
[0002]
[Prior art and problems to be solved by the invention]
With the development of optical communication networks, various information services have recently been provided via optical communication networks. For example, as shown in FIG. 3, when there are information service providers A to D and there are subscribers 1 to 4, independent lights are provided between the providers A to D and the subscribers 1 to 4. It is necessary to connect with the fiber 5.
[0003]
In such a case, since many optical fibers 5 are congested, an optical wiring board is used as a means for solving the congestion.
In the optical wiring board, a plurality of optical fibers are fixed on a thin plastic plate. At this time, in order to avoid bending loss, each optical fiber needs to be fixed to the optical wiring board with a bending radius of 30 mm or more. For this reason, it is difficult to reduce the size of the optical wiring board, and there is a problem that an arrangement space for the optical wiring board becomes large in a relay device or the like in which the optical wiring board is arranged.
[0004]
The present invention has been made in view of the above points, and an object thereof is to provide an optical fiber bundle that can be connected to a plurality of optical fibers in a small arrangement space without using an optical wiring board. .
[0005]
[Means for Solving the Problems]
In the present invention, in order to achieve the above object, an optical fiber bundle formed by superposing m optical fiber ribbons in which n optical fibers are arranged on one end side in the thickness direction is used as an m optical fiber. An optical fiber bundle array conversion structure for converting an optical fiber bundle of optical fibers into an optical fiber bundle formed by stacking n optical fiber ribbons in a thickness direction perpendicular to the thickness direction (m and n are both The natural number of 2 or more), the array conversion structure has n light beams in which the one end sides of the m optical fiber ribbons made of the n optical fibers are separated and the m optical fibers are arrayed. It is equipped with a conversion part that is reconfigured by converting the fiber tape core wire,
In the conversion unit, the first m of the first to n-th optical fibers of the n-core optical fiber ribbon are collectively reconfigured into a single m-fiber ribbon. Similarly, the second to nth optical fibers are combined into one m-core optical fiber ribbon, and converted into n m-core optical fiber ribbons. are, each optical fiber, than is said from n centroid of the optical fiber ribbon configured to be contiguous with the sequence converted in the m-core constituted by the optical fiber tapes center Senma before conversion .
[0006]
Preferably, at one end side of the m tape cores, the optical fibers having the same array position in the tape cores are collectively converted into n tape cores.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment according to an optical fiber bundle of the present invention will be described in detail with reference to FIGS. 1 and 2.
As shown in FIG. 1, the optical fiber bundle 10 has m tape cores 11 in which n optical fibers are arranged in parallel at a predetermined pitch (m and n are both natural numbers of 2 or more), and m One end side of the tape core wire 11 is converted into an n number of tape core wires 12 in which m-core optical fibers are arrayed, and the conversion portion is accommodated in a housing 13 having an upper lid 13a and a lower lid 13b. ing.
[0008]
The optical fiber bundle 10 configured as described above is manufactured as follows.
First, m tape cores 11 are overlapped in the thickness direction, and one end side is separated into n optical fibers.
Next, the optical fibers having the same arrangement position in each tape core wire 11 are collected and the arrangement is converted.
[0009]
That is, the m number of tape cores 11 are arranged in order from the first tape core 11 to the m-th tape core 11 in parallel with the first optical fibers in order, for example, using an adhesive or the like. The first tape core wire 12 in which m-core optical fibers are arranged is used as one end.
Next, from the first tape core 11 to the m-th tape core 11, the second optical fibers are arranged in parallel in order and fixed in a tape shape with an adhesive, and one end side of the m-core is It is assumed that the second tape core wire 12 in which optical fibers are arranged.
[0010]
Hereinafter, the same operation is repeated in order from the third optical fiber to the nth optical fiber to obtain the third to nth tape core wires 12 in which m core optical fibers are arranged in parallel.
As a result, the arrangement of the optical fiber bundle 10 having m tape cores 11 is converted into n tape cores 12 in which m optical fibers 12a are arrayed. As shown in the drawing, the width direction in which the plurality of optical fibers 12a are arranged is perpendicular to the width direction of the tape core wire 11 in the tape core wire 12 whose arrangement has been converted in this way.
[0011]
At this time, the operation of arranging the separated optical fibers and fixing them in a tape shape is performed manually by the operator so that the plurality of optical fibers can be neatly arranged and revolved and fixed in a tape shape. . However, the above operation may be automated by a dedicated machine.
Thereafter, an intermediate conversion portion in which the arrangement of the m pieces of the tape cores 11 in which the arrangement of the optical fibers has been converted into the n pieces of the tape cores 12 is converted into a casing 13 having an upper lid 13a and a lower lid 13b. The optical fiber bundle 10 is manufactured.
[0012]
The optical fiber bundle 10 manufactured in this way includes, as shown in FIG. 2, for example, information service providers A to D and subscribers 1 to 4, four tape cores 11, and optical fibers. It is used when connecting with four tape core wires 12 whose arrangement has been converted. Then, since the optical fiber bundle 10 is clear as compared with FIG. 3 used in the description of the prior art, a large number of optical fibers are grouped like the tape core wire 11 and the tape core wire 12. Many optical fibers are not congested.
[0013]
The optical fiber bundle 10, Ru can be connected in a small arrangement space between the plurality of optical fibers without using the optical wiring board.
[0014]
【The invention's effect】
According to the first or second aspect of the present invention, it is possible to provide an optical fiber bundle that can be connected to a plurality of optical fibers in a small arrangement space without using an optical wiring board.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an optical fiber bundle according to the present invention.
2 is a perspective view showing an example of a usage pattern of the optical fiber bundle of FIG. 1. FIG.
FIG. 3 is a model diagram showing an example of a conventional optical communication network in which many optical fibers are congested.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Optical fiber bundle 11 Tape core wire 12 Tape core wire 12a Optical fiber 13 Case 13a Upper lid 13b Lower lid

Claims (3)

The optical fiber bundle made by superimposing the m optical fiber ribbon optical fibers are arranged in n-centered in the thickness direction at one end, said optical fiber ribbon optical fibers are arranged in m center thickness The vertical direction is an optical fiber bundle array conversion structure for converting into an optical fiber bundle formed by superposing n pieces in a perpendicular thickness direction (m and n are natural numbers of 2 or more),
The arrangement converting structure is arranged in n optical fiber ribbons in which the one end sides of m optical fiber ribbons composed of the n optical fibers are separated and m optical fibers are arranged. A conversion unit that has been converted and reconfigured,
In the conversion unit, the first m of the first to n-th optical fibers of the n-core optical fiber ribbon are collectively reconfigured into a single m-fiber ribbon. Similarly, the second to nth optical fibers are combined into one m-core optical fiber ribbon, and converted into n m-core optical fiber ribbons. Has been reboned in tape form,
Wherein each optical fiber, the arrangement of the optical fiber bundle, characterized in that continuously from the n-core optical fiber ribbon before the conversion to the optical fiber ribbon of the m-core which is constituted by array conversion Transformation structure. Sequence converting structure of the optical fiber bundle of the mounting serial to claim 1, wherein the converting portion is accommodated in a housing having an upper lid and a lower lid. An optical fiber bundle conversion method for converting an optical fiber bundle consisting of m n-core optical fiber ribbons into an optical fiber bundle consisting of n m-core optical fiber ribbons (m and n are both 2 More natural numbers),
At one end side of the m optical fiber ribbons of the optical fiber bundle formed by superposing m optical fiber ribbons in which n optical fibers are arranged in the thickness direction, Separating the contained optical fibers;
Of the first to nth optical fibers of the separated n-core optical fiber ribbons, the first m fibers are grouped together and reconfigured into one m-fiber ribbon. In addition, the second to nth optical fibers are combined and reconfigured into one m-core optical fiber ribbon, thereby continuously forming n m-fiber ribbons. Restructuring, and
And a step of forming an optical fiber bundle in which n reconfigured m optical fiber ribbons are superposed in a thickness direction perpendicular to the thickness direction. Array conversion method for bundles.

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