Optical fiber bundle and manufacturing method thereof

Abstract

The invention relates to the technical filed of optical fiber, and particularly relates to an optical fiber bundle and a manufacturing method thereof. The UV (Ultraviolet) optical fiber bundle comprises a plurality of optical fiber ribbons, each optical fiber ribbon is provided with an isolation layer on the outer surface along the ribbon length, the plurality of optical fiber ribbons with isolation layers are stacked and consolidated by UV (Ultraviolet) resin integrally. 2 to 12 optical fiber ribbons are stacked into 2 to 12 layers. The optical fiber ribbons are wrapped. A plurality of stacked optical fiber ribbons are consolidated as optical fiber bundles with circular or rectangular cross sections by UV resin; the diameter of the optical fiber bundle with a circular cross section is 3000 to 3050mu m, the long side of the optical fiber bundle with a rectangular cross section is 2150 to 2200mu m long. The optical fiber bundle contains 2 to 8 optical fiber ribbons which are stacked in parallel, and each optical fiber ribbon contains 8 optical fibers tiled horizontally and in parallel. The optical fiber bundle is manufactured by stacking and placing the optical fiber ribbons in parallel, thus overcoming the technical prejudice in prior art that the optical fiber ribbons in the optical fiber bundle cannot be stacked and placed in parallel and meeting the requirement of people on optical cables with a large number of cores, the processing technology is simple and the processing quality is stable.

Description

technical field [0001] The invention relates to the field of optical fiber technology, in particular to an optical fiber bundle and a manufacturing method thereof. Background technique [0002] With the rapid development of the communication industry, the demand for the network is increasing day by day, and there are more and more requirements for optical cables with a large number of cores. However, the optical fiber ribbon can generally only be made of 12 cores, and 12 optical fibers of different colors are arranged side by side and cured by UV resin to form a figure 1 fiber optic ribbon shown. If the number of fiber cores exceeds 12, fibers of the same color will appear in the same fiber ribbon, which is difficult to distinguish. Therefore, the number of cores of the optical fiber ribbon is limited by the color of the optical fiber. In order to obtain an optical cable with a larger number of cores, although it is also possible to consolidate multiple optical fiber ribbo...

AI Technical Summary

Problems solved by technology

However, due to the color limit, basically only 12 cores can be achieved, and it also faces the problem of poor stripping performance. Considering that the optical fibers must be stripped out one by one when the optical cable is connected, the current use of large cores in optical cables The optical cables are all optical fiber ribbons and are placed flat, such as figure 2

However, due to the limitation of the eye mask structure, there can only be two optical fiber ribbons placed flat, which greatly restricts the number of optical fiber cores contained in the optical fiber bundle.

If the optical fiber ribbon is made into a stacked structure, the number of optical fiber cores in the optical fiber bundle can be greatly increased, but this brings about the difficulty of stripping

In fact, will figure 1 It is more troublesome to strip the optical fibers in the optical fiber ribbon shown in the figure. If the optical fiber ribbons are stacked, the adhesion area of ​​adjacent optical fiber ribbons will be larger, and the stripping will be more difficult.

Therefore, practical large-core fiber bundles have not been able to be introduced to the market

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