Equipment and method for preparing micro-structured fiber preform of chalcogenide glass

A technology of microstructured optical fiber and chalcogenide glass, applied in glass manufacturing equipment, glass fiber products, applications, etc., can solve problems such as multiple bubbles, and achieve the effect of high production efficiency and few processes

Active Publication Date: 2012-07-04
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic patent CN1081654A is based on the extrusion method to prepare porous optical fiber preforms. It also involves a preparation process for plastic optical fiber preforms. The preparation of preforms, not to mention the extrusion method for chalcogenide glass microstructured optical fiber preforms suitable for mid- and far-infrared applications

Method used

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  • Equipment and method for preparing micro-structured fiber preform of chalcogenide glass
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  • Equipment and method for preparing micro-structured fiber preform of chalcogenide glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: An equipment for preparing a chalcogenide glass microstructure optical fiber preform, including an extrusion cylinder 1, an extrusion pad 2, a pushing mechanism 3 and a mold 4, and a heating furnace group is arranged outside the extrusion cylinder 1, and the heating The furnace group heats the extrusion cylinder 1, a vacuum chamber 5 is arranged outside the heating furnace group, the extrusion pad 2 is arranged in the extrusion cylinder 1, the pushing mechanism 3 pushes the extrusion pad 2 to move downward, and the lower end of the extrusion cylinder 1 An extrusion port 6 is provided, the mold 4 is arranged at the extrusion port 6, and the cooling furnace 7 is arranged at the lower part of the extrusion cylinder 1 . The vacuum chamber is arranged on the base 15 .

[0029] The pushing mechanism 3 includes an electric jack 31 and an extruding rod 32 , the electric jack 31 drives the extruding rod 32 , and the extruding rod 32 is fixed to the extruding pad 2 ...

Embodiment 2

[0042] Embodiment two: a kind of method for preparing chalcogenide glass microstructure optical fiber preform comprises the following steps:

[0043] 1) Select a chalcogenide glass ingot whose △T>100℃, where △T=T x -T g , where T x is the crystallization start temperature, T g is the glass transition temperature;

[0044] 2) Select a kind of equipment for preparing chalcogenide glass microstructure optical fiber preform, including extrusion cylinder 1, extrusion pad 2, pushing mechanism 3 and mold 4, the extrusion cylinder 1 is equipped with a heating furnace group, and the heating furnace The group heats the extrusion cylinder 1, a vacuum chamber 5 is arranged outside the heating furnace group, the extrusion pad 2 is arranged in the extrusion cylinder 1, the pushing mechanism 3 pushes the extrusion pad 2 to move downward, and the lower end of the extrusion cylinder 1 is set There is an extrusion port 6, the mold 4 is arranged at the extrusion port 6, and the cooling furna...

Embodiment 3

[0049] A method for preparing a chalcogenide glass microstructure optical fiber preform, comprising the following steps:

[0050] 1) Select a chalcogenide glass ingot whose △T>100℃, where △T=T x -T g , where T x is the crystallization start temperature, T g is the glass transition temperature;

[0051] 2) Select a kind of equipment for preparing chalcogenide glass microstructure optical fiber preform, including extrusion cylinder 1, extrusion pad 2, pushing mechanism 3 and mold 4, the extrusion cylinder 1 is equipped with a heating furnace group, and the heating furnace The group heats the extrusion cylinder 1, a vacuum chamber 5 is arranged outside the heating furnace group, the extrusion pad 2 is arranged in the extrusion cylinder 1, the pushing mechanism 3 pushes the extrusion pad 2 to move downward, and the lower end of the extrusion cylinder 1 is set There is an extrusion port 6, the mold 4 is arranged at the extrusion port 6, and the cooling furnace 7 is arranged at ...

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Abstract

The invention discloses equipment and a method for preparing a micro-structured fiber preform of chalcogenide glass. The equipment comprises an extrusion cylinder, an extrusion pad, a pushing mechanism and a mould, wherein a heating furnace set is arranged outside the extrusion cylinder and heats the extrusion cylinder; a vacuum chamber is arranged outside the heating furnace set; the extrusion pad is arranged in the extrusion cylinder; the pushing mechanism pushes the extrusion pad to move downwards; an extrusion port is formed at the lower end of the extrusion cylinder; the mould is arranged at the extrusion port; and a cooling furnace is arranged on the lower part of the extrusion cylinder. The invention has the advantages that: few processes for manufacturing the micro-structured fiber preform of the chalcogenide glass are performed, production efficiency is higher, and micro-structured fiber preforms of the chalcogenide glass, which have various structures, can be extruded by replacing moulds.

Description

technical field [0001] The invention relates to a method for preparing an optical fiber preform, in particular to an equipment and method for preparing a chalcogenide glass microstructure optical fiber preform. Background technique [0002] Micro-structured Fiber (Micro-structured Fiber), also known as Hole Fiber (HolyFiber), was first proposed by Russell et al. in 1992. At present, the most common microstructure fiber is dominated by photonic crystal fiber, which is a two-dimensional photonic crystal with defects. The optical fiber cladding is composed of regularly distributed air holes arranged in a hexagonal microstructure; the fiber core is composed of solid glass rods or air holes to form a line defect, which uses its ability to localize light to confine light to propagate in the fiber core. The special structure of the microstructure fiber cladding makes it have some unique properties compared with traditional fibers, such as unlimited single mode, controllable dispe...

Claims

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Application Information

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IPC IPC(8): C03B37/012
CPCC03B2201/86C03B37/01274C03B2203/42
Inventor 何钰钜王训四张培全聂秋华徐铁峰戴世勋沈祥徐会娟白坤
Owner NINGBO UNIV
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