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Full-dry optical fiber ribbon optical cable and manufacturing method thereof

A production method and technology of optical fiber ribbon, applied in the field of optical communication transmission, to achieve high splicing efficiency, low attenuation change rate, and high fiber capacity

Inactive Publication Date: 2021-02-09
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing optical cable structure is difficult to fully meet the above-mentioned various requirements

Method used

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  • Full-dry optical fiber ribbon optical cable and manufacturing method thereof
  • Full-dry optical fiber ribbon optical cable and manufacturing method thereof
  • Full-dry optical fiber ribbon optical cable and manufacturing method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The structure of an embodiment of the optical cable of the present invention is as follows: figure 1 , 2 As shown, it includes a cable core and an outer sheath 1. The cable core is a layer-stranded cable core, and the layer-stranded cable core includes a central strength member 5 and a sleeve twisted on the periphery of the center strength member. 6. An array-type optical fiber ribbon 4 is set in the sleeve, and the array-type optical fiber ribbon includes a rectangular array formed by 12 vertically stacked 8-core optical fiber ribbons. On the upper and lower sides of the rectangular array (long 2 layers of optical fiber ribbons are stacked on each side, and the number of cores of each layer of optical fiber ribbons is decreasing from the inside to the outside, respectively 8 cores and 4 cores. The connections at the top of the optical fiber rib...

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Abstract

The invention relates to a full-dry optical fiber ribbon optical cable and a manufacturing method thereof. The optical cable comprises a cable core and an outer sheath, the cable core is a layer-stranded cable core, the layer-stranded cable core comprises a center reinforcing part and sleeves stranded on the periphery of the center reinforcing part, and array type optical fiber ribbons are sleevedwith the sleeves. The optical cable is characterized in that the sleeves are filled with water-blocking powder, the cable core stranded by the sleeves is filled with water-blocking powder, and the cable core is coated with a PET film layer to form a full-dry yarn-free cable core structure. The optical cable is reasonable in structural arrangement, high in water blocking performance, small in cable diameter, high in fiber capacity, low in weight, convenient to use and low in manufacturing cost. Compared with an optical cable achieving water blocking through a water-blocking tape or a water-blocking yarn, the size of the optical cable is smaller, and the attenuation change rate of the optical fiber in the optical cable is lower. By means of an electrostatic water-blocking powder adding device, the water-blocking powder is properly and uniformly distributed in the cable core, the processing quality is ensured, the process is simple and convenient, and the waste of the water-blocking powder and the pollution to the environment are avoided.

Description

technical field [0001] The invention relates to a fully dry optical fiber ribbon cable and a manufacturing method thereof, belonging to the technical field of optical communication transmission. Background technique [0002] With the rapid development of optical communication technology, there is an increasing demand for high bandwidth in the field of transmission, and resources, especially pipeline resources and laying space in cities, are becoming more and more scarce. Therefore, it is necessary to develop a fiber with a smaller diameter Optical cables with higher capacity and more convenient construction have become an urgent problem to be solved in the optical communication industry. At the same time, with the doubling of the use of optical cables, higher requirements are put forward for the simplification of the optical cable structure and the reduction of manufacturing costs. However, the existing optical cable structure is difficult to fully meet the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/4404G02B6/4411G02B6/443G02B6/448G02B6/44384
Inventor 罗俊超祁林杨向荣吴凡黄俊陈学山
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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