Multicore bunched close-covered optical fibre unit and its production method
A manufacturing method and a tight-packing technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of low investment utilization rate, large number of core fiber optic cables construction funds, and high investment cost, and achieve good bending performance and lateral pressure resistance. The process is simple and reliable, and the effect of avoiding the backlog of funds
Inactive Publication Date: 2005-11-02
JIANGSU ZHONGTIAN TECH CO LTD +1
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Problems solved by technology
[0002] At present, the long-distance and local line optical cable network has a long period of construction, and the paid trench digging and direct burial fees and road occupation compensation fees are relatively high. In addition, the trunk large-core optical cables that optical cable manufacturers can provide in the past are generally large in diameter. Therefore, the communication of optical cable networks Pipeline construction costs are high, the cycle is long, and large-core optical cables occupy a lot of construction funds at one time
The high one-time cost of optical cable network construction and the slow growth of the actual market demand for optical fiber resources lead to the unavoidable basic problems of high investment costs and low investment utilization rates for telecom operators in the construction of optical cable networks.
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[0025] Refer to attached figure 1 , 2 The micro-bundle type tight-packed optical fiber unit structure includes a multi-core optical fiber 2 , a polymer photocurable material layer 3 , and a sheath 1 . The multi-core optical fiber 2 is composed of several colored optical fibers. The multi-core optical fiber is closely combined with the polymer photocurable material layer 3 to form a multi-core optical fiber bundle. A sheath 1 is arranged outside the multi-core optical fiber bundle. The sheath can be made of polymer materials such as polyvinyl chloride and polyethylene, and a non-metallic tensile element 4 can be arranged in the middle of the multi-core optical fiber bundle to increase the tensile strength of the optical fiber unit (see attached figure 2 ).
[0026] Example 1 of the manufacturing method of the micro-bundle tight-packed optical fiber unit.
[0027] 1. Install 4 colored optical fibers, that is, multi-core optical fibers, on the pay-off shaft, adjust the pay-of...
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The structure of multicore bunched tightly-covered optical fibre unit includes multicore optical fibre polymer photocureable material layer and protective jacket, the multicore optical fibre is formed from several colored optical fibres, and the multicore optical fibre can be tightly combined by means of polymer photocureable material and made into the invented multicore optical fibre bundle whose exterior is equipped with protective jacket.
Description
technical field [0001] The invention relates to a multi-core bundled tight-wrapped optical fiber unit and a manufacturing method thereof, which relate to a method of combining multi-core optical fibers into a tight-wrapped optical fiber unit by using a polymer material and then adding a sheath to form a micro-bundle tight-wrapped optical fiber and a manufacturing process. The tight-packed optical fiber is suitable for air blowing into the duct and then laying the pipeline. It can be used in long-distance communication optical cable lines, and can also be used for indoor wiring to connect communication equipment computers, small switches and end-user equipment in buildings. Background technique [0002] At present, the long-distance and local line optical cable network has a long period of construction, and the paid trench digging and direct burial fees and road occupation compensation fees are relatively high. In addition, the trunk large-core optical cables that optical cabl...
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IPC IPC(8): G02B6/44
Inventor 薛济萍缪小明娄卫东冯爱军
Owner JIANGSU ZHONGTIAN TECH CO LTD