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Manufacturing apparatus and manufacturing method of optical fiber master batch

An optical fiber base material and manufacturing device technology, which can be applied to manufacturing tools, glass manufacturing equipment, etc., can solve problems such as the inability to ensure the quality of the porous base material and the inability to observe the manufacturing state of the porous base material S, and achieve the effect of inhibiting adhesion and ensuring quality

Inactive Publication Date: 2016-10-12
THE FUJIKURA CABLE WORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, glass particles adhere to the inner surface of the internal monitoring window, so the production status of the porous base material S cannot be accurately observed through the blurred internal monitoring window.
Therefore, there is a problem that the quality of the manufactured porous base material cannot be ensured

Method used

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  • Manufacturing apparatus and manufacturing method of optical fiber master batch
  • Manufacturing apparatus and manufacturing method of optical fiber master batch
  • Manufacturing apparatus and manufacturing method of optical fiber master batch

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach ＞

[0026] figure 1 It is a vertical cross-sectional view showing the optical fiber preform manufacturing apparatus 1 using the VAD method in this embodiment. also, figure 1 The up and down direction on the paper is the vertical direction.

[0027] The optical fiber preform manufacturing apparatus 1 is an apparatus for manufacturing an optical fiber porous preform S (hereinafter, simply referred to as "porous preform S"). Such as figure 1 As shown, an optical fiber preform manufacturing apparatus 1 includes a reaction vessel 10, a target member 20, a core burner (Core burner) 30 (burner), a cladding burner 40 (burner), a base (Booth) 50, and a base (Booth) 50. The illustrated air supply device (air supply mechanism) and the exhaust device 70 are shown. An internal monitoring window 80 for monitoring the optical fiber preform is provided on a side surface of the reaction container 10 . The internal monitoring window 80 is fixed to the side surface of the reaction vessel 10 ...

no. 2 approach ＞

[0038] Figure 3A It is a vertical cross-sectional view showing a schematic configuration of an internal monitoring window 81 and an air supply port 91 in the optical fiber preform manufacturing apparatus according to the second embodiment of the present invention. Figure 3B It is a front view showing a schematic configuration of an internal monitoring window 81 and an air supply port 91 in the optical fiber preform manufacturing apparatus according to the second embodiment of the present invention.

[0039] In the present embodiment, the parts other than the internal monitoring window 81 and the air supply port 91 are the same as those in the first embodiment, and therefore description thereof will be omitted.

[0040] In the present embodiment, the gas supply port 91 is constituted by a gap between the internal monitoring window installation opening 93 provided on the side surface of the reaction container and the internal monitoring window 81 .

[0041] When described in ...

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Abstract

A manufacturing apparatus and a manufacturing method of an optical fiber master batch. The manufacturing apparatus is provided with: a reaction container, a target arranged therein, a combustor which is disposed in the reaction container and stacks glass particles on the target; an interior monitoring window which is arranged on the side wall of the reaction container, a gas supply port for supplying gas to the reaction container; and an exhaust apparatus for exhausting gas from the reaction container. The gas supply port, the interior monitoring window and the exhaust apparatus are formed in a manner that the gas flows from the gas supply port, passes through nearby the surface of the interior monitoring window through the inner side of the reaction container, is fed into the reaction container and is discharged out.

Description

technical field [0001] The invention relates to a manufacturing device for an optical fiber base material and a manufacturing method for an optical fiber base material. Background technique [0002] As a method of manufacturing a base material of an optical fiber, a VAD method and an external method are known. [0003] Figure 4 It is a vertical sectional view showing a schematic configuration of a conventional optical fiber preform manufacturing apparatus using the VAD method. [0004] Such as Figure 4 As shown, an optical fiber preform manufacturing apparatus 101 includes a reaction vessel 110, a target member 120 disposed in the reaction vessel 110, a core burner 130 for accumulating glass particles from the front end of the target member 120 toward the axially downward direction, and a bag. layer burner 140 . In addition, in the conventional optical fiber preform manufacturing apparatus using the external method, the core burner 130 is not provided, and only the cladd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/018
CPCC03B37/01406C03B37/01815
Inventor 今田宽内山圭祐
Owner THE FUJIKURA CABLE WORKS LTD