KR20000050474A - Muti layer ribbon optical fiber and method of forming the same - Google Patents

Abstract

PURPOSE: A multi-layer ribbon optical fiber and a method for manufacturing the multi-layer ribbon optical fiber are provided to improve the mechanical characteristics of the fiber by coating a stacked ribbon optical fiber. CONSTITUTION: A multi-layer ribbon optical fiber comprises a single core optical fiber(200), a ribbon optical fiber(210), and a coating material(220). The single core optical fiber(200) is made of an acryl coating optical fiber. The single core optical fiber(200) is coated with a UV resin to form the ribbon optical fiber(210). The ribbon optical fiber(210) which is stacked is coated with the coating material(220).

Description

Multi layer ribbon optical fiber and method of forming the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to optical fibers, and more particularly, to a multilayer ribbon optical fiber coated by laminating a plurality of ribbon optical fibers in multiple layers using pay-offs.

In the case of a cable using ribbon optical fiber, a cable having a high density of fiber optics is required in the future due to a high density integrated cable design for FTTH (Fiber To The Home). Accordingly, a cable in which a plurality of ribbon optical fibers are stacked in a tube is used.

Figure 1a shows a process of tubing the ribbon optical fiber.

When the ribbon optical fiber 120 coated with the optical fiber arranged in two or more cores is sent out from the delivery unit 130 using a plurality of pay-offs, the ribbon optical fiber 120 is stacked in multiple layers to form a tube 110. ) Is inserted. This tubing operation is a process for allowing the ribbon optical fiber 120 to be simply stacked in multiple layers.

FIG. 1B illustrates a cross-section of the ribbon optical fibers stacked by the process of tubering the ribbon optical fibers of FIG. 1A.

Ribbon optical fiber 120 is a plurality of single-fiber optical fibers 121 in parallel, and is coated with a coating agent 123, such as UV resin. By employing ribbon optical fibers, the cable can be made higher in density, and the efficiency of work can be achieved by collective connection at the terminals.

The ribbon optical fiber 120 laminated by the tubing process has a problem that it is disturbed in the tube, and also a problem that the mechanical properties due to the external environment is weakened.

The technical problem to be achieved by the present invention is to provide a multi-layered ribbon optical fiber and a method of manufacturing the laminated ribbon optical fiber is not disturbed in the tube, and resistant to mechanical properties from the external environment.

Figure 1a shows a process of tubing the ribbon optical fiber.

FIG. 1B is a cross-sectional view of the ribbon optical fibers laminated by the process of tubing the ribbon optical fibers of FIG. 1A.

Figure 2a shows a multilayer ribbon optical fiber according to the present invention.

Figure 2b shows a state in which the multi-layered ribbon optical fiber is inserted into the tube according to the present invention.

Multi-layered ribbon optical fiber of the present invention for solving the technical problem is a single core optical fiber; A ribbon optical fiber in which the single-core optical fiber is horizontally arranged in a straight line at two or more cores and coated with ultraviolet resin; And a coating agent for laminating the ribbon optical fiber and coating the laminated ribbon optical fiber.

The multi-coated ribbon optical fiber manufacturing method of the present invention for solving the other technical problem is a step of producing a ribbon optical fiber by horizontally arranging the single-core optical fiber in a straight line with two or more cores and coated with an ultraviolet resin; (b) stacking the ribbon optical fiber in two or more layers; (c) coating the multilayer ribbon optical fiber; And (d) curing the coated multilayer ribbon optical fiber.

Hereinafter, the present invention will be described with reference to the drawings.

Figure 2a shows a multi-layered ribbon optical fiber according to the present invention, consisting of a single core optical fiber 200, a ribbon optical fiber 210 and a coating agent 220.

The single-fiber optical fiber 200 generally uses an acrylic coated optical fiber. The ribbon optical fiber 210 is coated with UV resin or the like of the single core optical fiber 200 horizontally arranged in a straight shape with two or more cores. Ribbon optical fiber 210 generally has an optical fiber depth of 2 to 12 cores. The coating agent 210 coats the ribbon optical fiber 210 laminated in two or more layers. As the coating agent 210, an ultraviolet curable resin is used.

As described above, a manufacturing process of the multilayer ribbon optical fiber according to the present invention will be described.

When the single-core optical fiber 200 is sent out from the optical fiber transmitting unit consisting of a plurality of pay-offs, the plurality of single-core optical fibers 200 sent from the optical fiber transmitting unit are coated with an ultraviolet resin. Ribbon optical fiber 210 is completed by curing the plurality of coated single-core optical fiber 200 with a UV beam.

When the ribbon optical fiber 210 is sent out by the optical fiber sending unit composed of a plurality of pay-offs, the ribbon optical fiber 210 is stacked in several layers. The laminated ribbon optical fiber 210 is coated by turning the S-shaped or Z-shaped using an ultraviolet curing coating 220. The laminated ribbon optical fiber 210 is coated by the coating agent 220 and then cured by a UV beam.

Figure 2b shows a state in which the multi-layered ribbon optical fiber is inserted into the tube according to the present invention. Here, the structure of the tube does not matter whether it is square or circular.

According to the present invention, by using multilayered ribbon optical fibers coated with laminated ribbon optical fibers, the multilayer ribbon optical fibers are not disturbed by external impact or pressure in the tube, and mechanical properties from the external environment are improved.

Claims (5)

Single core optical fiber; A ribbon optical fiber in which the single-core optical fiber is horizontally arranged in a straight line at two or more cores and coated with ultraviolet resin; Multi-layered ribbon optical fiber comprising laminating the ribbon optical fiber and a coating agent for coating the laminated ribbon optical fiber. The method of claim 1, wherein the coating agent Multi-coated ribbon optical fiber, characterized in that the UV-curable coating agent. (a) horizontally arranging the single-fiber optical fibers in a straight line form at least two cores and coating the optical fiber with ultraviolet resin to produce a ribbon optical fiber; (b) stacking the ribbon optical fiber in two or more layers; (c) coating the multilayer ribbon optical fiber; And (d) a method for producing a multilayer ribbon optical fiber, comprising curing the coated multilayer ribbon optical fiber. The method of claim 3, wherein step (c) A method for producing a multilayer ribbon optical fiber, characterized in that the coating using an ultraviolet curing coating agent. The method of claim 3, wherein step (c) Multi-layer ribbon optical fiber manufacturing method characterized in that the coating while twisting the laminated multi-layer ribbon optical fiber.