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Thermally expanded core fiber fabrication method and optical fiber coupling method

A core fiber, thermal expansion technology, applied in the direction of cladding fiber, optical waveguide light guide, optics, etc., can solve the problems of lower connection efficiency and lower connection fiber efficiency.

Inactive Publication Date: 2003-07-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if there is only a slight deviation in the core of the bonded fiber, the efficiency of the bonded fiber will be significantly reduced
Also, when the optical fiber is connected with the optical device, if the size of the waveguide is small and the shape of the waveguide is different, the connection efficiency will be reduced

Method used

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  • Thermally expanded core fiber fabrication method and optical fiber coupling method
  • Thermally expanded core fiber fabrication method and optical fiber coupling method
  • Thermally expanded core fiber fabrication method and optical fiber coupling method

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Embodiment Construction

[0014] The present invention will now be described in detail with reference to the accompanying drawings. figure 2 Two fibers with different cladding outer diameters are shown, reference numeral 210 refers to the fiber with the smaller cladding outer diameter, and reference numeral 220 refers to the fiber with the larger cladding outer diameter. However, the core diameters of the two fibers are the same.

[0015] Two optical fibers 210 and 220 with the same core diameter and different cladding outer diameters are fused together by using an arc fusion welder, and the core of one end of the optical fiber with the core cladding expands. At this time, due to the cohesion between two fibers having similar melting points, the cladding of the optical fiber with the smaller cladding outer diameter becomes wider, so that the cladding of the optical fiber with the smaller cladding outer diameter is connected to the larger cladding on the cladding of the outer diameter fiber.

[0016]...

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Abstract

A method for fabricating a thermally expanded core (TEC) fiber including the steps of arc-fusion splicing two optical fibers having different clad outer diameters, and cutting boundary surface between an optical fiber having a small clad outer diameter and an optical fiber having a large clad outer diameter of the two optical fibers to obtain the thermally expanded core (TEC) fiber. Also, the method further includes the step of polishing the cutting face of the optical fiber having a small clad outer diameter of the two cut optical fibers.

Description

technical field [0001] The present invention relates to an optical fiber processing method, in particular to a thermal expansion core (TEC) optical fiber processing method. When the optical fibers with different outer diameters are connected by arc fusion, diffusion occurs, and the diffusion causes thermal expansion of the optical fiber core. The invention also relates to an optical fiber connection method. Background technique [0002] Using a TEC fiber in an optical element having an optical fiber as its input / output port enables an efficient connection when light received from the fiber at the input end passes through the functional element and then output to the output end. [0003] like figure 1 As shown, the TEC fiber 140 is processed by approaching the fiber 110 with the flame 130 of the torch 120 generating high heat, expanding its fiber core, and then thermally treating the fiber at a high temperature below the melting point. The heat-treated fiber is then post-pr...

Claims

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Application Information

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IPC IPC(8): G02B6/02G02B6/255
CPCG02B6/2552G02B6/2551G02B6/255
Inventor 金性准金贞美
Owner SAMSUNG ELECTRONICS CO LTD