Mould apparatus and method for manufacturing multicomponent glass optical fiber prefabricating stick

A glass optical fiber and preform technology, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of large interface loss, complex manufacturing process, and difficulty in manufacturing glass optical fibers with special end-face structure, so as to reduce impurity and bubble loss, and reduce the loss of impurities and bubbles. Simple and easy, avoid the effect of glass rod burst

Inactive Publication Date: 2009-05-13
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of large interface loss, difficulty in manufacturing glass optical fiber with special end face structure, complex manufacturing process and the like in the manufacturing process of existing multi-component glass optical fiber preform rods.

Method used

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  • Mould apparatus and method for manufacturing multicomponent glass optical fiber prefabricating stick
  • Mould apparatus and method for manufacturing multicomponent glass optical fiber prefabricating stick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing a single-mode optical fiber preform, comprising the steps of: comprising the steps of:

[0036]①Melting the core glass and making it into a round rod, draw it into a core glass rod 9 with a diameter of 1.2mm according to the required shape and size of the fiber core by an optical fiber drawing machine;

[0037] ②According to the structure and size of the multi-component glass optical fiber, select or process the required mold device, including the length and inner diameter of the stainless steel cylindrical cylinder 1, the number, shape and position of the small holes 4 of the stainless steel end cap 2 and size, after the mold device is installed, insert the core glass rod 9 into the small hole 4 of the stainless steel end cap 2 to ensure that the core glass rod 9 and the stainless steel cylindrical cylinder After the axis of 1 is parallel, it is fixed in the mold device;

[0038] 3. Open the muffle furnace with the mouth of the furnace facing up...

Embodiment 2

[0044] A method for preparing an eccentric optical fiber preform, comprising the steps of:

[0045] (1) The core glass is melted by a common melting method, processed into a round rod, and then drawn into a core glass rod 9 with a diameter of 1.5 mm by an optical fiber drawing machine;

[0046] (2) select the diameter of the eccentric small hole 7 to be 2mm, the distance between the center of the hole and the center of the circle is 3mm, two stainless steel end caps 2 identical in shape, keep the connecting line of the eccentric small hole 7 of the two stainless steel end caps 2 and the stainless steel cylindrical circle The axes of the cylinder 1 are parallel, and the stainless steel end cap 2 is fixed to both ends of the stainless steel cylindrical cylinder 1 with an inner diameter of 25mm by screws 3, and the core glass rod 9 is inserted into the eccentric small hole of the stainless steel end cap 2 7, put it into the muffle furnace with the furnace mouth facing up, when th...

Embodiment 3

[0051] A method for preparing a panda-shaped polarized optical fiber preform, comprising the steps of:

[0052] (1) The core glass is melted by ordinary melting method, and after being processed into a round rod, it is drawn into a core glass rod with a diameter of 1 mm by an optical fiber drawing machine;

[0053] (2) Choose two eccentric small holes 8 on each stainless steel end cap, and the apertures are 1.5mm, the center of the hole is 2mm from the center of the circle, and two stainless steel end caps 2 symmetrical to the center of the circle are used to keep the stainless steel end cap 2 The connection line of the corresponding small hole 8 is parallel to the axis of the stainless steel cylindrical cylinder 1, and the two ends of the stainless steel cylindrical cylinder 1 with an inner diameter of 25mm are fixed by screws 3, and the core glass rod 9 is inserted into the In the two small holes 8 of the stainless steel end cap 2, put it in the muffle furnace with the furna...

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Abstract

The invention relates to a die device for manufacturing a multi-component glass optical fiber preformed rod and a method thereof. The die device is formed by screwed connection of both ends of a stainless steel column cylinder and two stainless steel end covers, wherein the two stainless steel end covers are provided with same small holes for fiber core glass rods to pass through; the side wall on the top end of the stainless steel column cylinder is provided with a through opening which is lower than the top end; and the through opening forms a groove of the stainless steel column cylinder, wherein the inside and the outside of the groove are communicated and the groove is intilted. The die device solves the problems of large interface consumption, large difficulty in manufacture of glass optical fibers with special end face structures, complex manufacturing technique and so on, and has the advantages of capability of precise control of the end face structures of the optical fibers, simple technology, good maneuverability, high production efficiency and so on.

Description

technical field [0001] The invention relates to glass optical fibers, in particular to a mold device and method for making multi-component glass optical fiber preform rods. It is suitable for the production of special glass optical fiber preforms with different core structures, especially for the production of multi-component glass optical fiber preforms with various matrices. Background technique [0002] Multi-component glass optical fibers are widely used in optical fiber communication, optical fiber sensing, medical equipment, instrument lighting, optical engineering and other industries. Especially with the increasing transmission capacity of the optical network, some optical nonlinear effects in the conventional silica fiber transmission have been greatly accumulated and improved, causing perturbation and damage to the optical signal transmission, which has become an optical communication process. The problems that cannot be ignored in the field have promoted the deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/012
Inventor 汪国年张军杰胡丽丽姜中宏
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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