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Manufacturing process of photonic crystal fiber

A technology of photonic crystal fiber and manufacturing process, which is applied in the direction of manufacturing tools, glass manufacturing equipment, glass fiber products, etc., can solve the problems of different manufacturing technologies of photonic crystal fiber, and there is no detailed report of photonic crystal fiber technology, so as to avoid additional impurities Introduction, fiber loss reduction, low loss effect

Active Publication Date: 2011-05-18
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The manufacturing technology of photonic crystal fiber is different from conventional fiber manufacturing technology, and there are basically no detailed reports on photonic crystal fiber technology at home and abroad

Method used

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  • Manufacturing process of photonic crystal fiber
  • Manufacturing process of photonic crystal fiber
  • Manufacturing process of photonic crystal fiber

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] For the preparation of photonic crystal fiber, whether it is total internal reflection photonic crystal fiber or hollow bandgap photonic crystal fiber, in order to reduce the loss of the fiber, it is also necessary to reduce the impurity content and increase the fiber axial And radial uniformity, in order to prepare low-loss photonic crystal fiber.

[0065] In addition, if the photonic crystal fiber is drawn by the beamforming method, it is necessary to study the capillary dynamics and micropore characteristics of the photonic crystal fiber. The size, shape and deviation of microholes arranged in the cross-section of photonic crystal fiber have a great influence on various functional parameters of the fiber (such as zero dispersion point, nonlinearity, and single-mode transmission bandwidth).

[0066] Under the high temperature condition of about 2000 ℃, the molten glass has a certain viscosity, and the temperature rises, and the viscosity of the quartz glass melt decre...

Embodiment 1

[0109] A quartz glass tube with an outer diameter of 40mm, a wall thickness of 1.5mm, and a length of 2000mm is used as the substrate tube, and nearly a thousand layers of high-purity quartz material are deposited on the inner wall of the quartz glass tube by using an optical fiber preform deposition lathe, so that the pure quartz material wall about 1 mm thick,

[0110] Put the quartz glass tube in figure 1 and figure 2 In the shown substrate tube erosion device, the substrate tube is locked by a circular ferrule 1 and a flange 2, so that the substrate tube is in the center of the substrate tube erosion device. Then inject strong acid through the upper inlet 4, and the lower inlet 5 is closed. After a period of time, the strong acid is exported from the lower inlet 5, and then the substrate tube erosion device is inverted, and the strong acid is injected from the lower inlet 5. After a period of time, After the original substrate tube material is completely eroded, the str...

Embodiment 2

[0118] A quartz glass tube with an outer diameter of 35mm, a wall thickness of 2.5mm, and a length of 1600mm is used as the substrate tube, and the optical fiber preform deposition lathe is used to deposit thousands of layers of high-purity quartz materials doped with germanium and fluorine on the inner wall of the quartz glass tube. The deposition thickness reaches 3mm,

[0119] Put the quartz glass tube in figure 1 and figure 2 In the shown substrate tube erosion device, the substrate tube is locked by a circular ferrule 1 and a flange 2, so that the substrate tube is in the center of the substrate tube erosion device. Then inject strong acid through the upper inlet 4, and the lower inlet 5 is closed. After a period of time, the strong acid is exported from the lower inlet 5, and then the substrate tube erosion device is inverted, and the strong acid is injected from the lower inlet 5. After a period of time, After the original substrate tube material is completely eroded...

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Abstract

The invention relates to a manufacturing process of a photonic crystal fiber. The manufacturing process comprises the following steps: the plasma chemistry vapor deposition (PCVD) technology and equipment are adopted to deposit a high-purity quartz material on the inner wall of a substrate tube, the corrosion method is adopted to remove the substrate tube, fire polishing is adopted to shape and smoothen the obtained high purity quartz tube and remove impurities, the high purity quartz tube is purified, the high purity quartz tube is drawn on a drawing tower to obtain a capillary tube under a sealed environment with the cleanliness of more than 100; the capillary tube is purified and protected, a mechanized dot matrix device is used to gather the capillary tubes in a bundle and finally form a photonic crystal fiber preform, and the photonic crystal fiber preform is drawn on the drawing tower through a certain drawing process to prepare the photonic crystal fiber. In the invention, the raw material preparation process of the photonic crystal fiber, the protection process of the capillary tube and the bundling process are optimized; the controllable preparation equipment with high cleanliness and high precision is formed; and the drawing process in the preparation of the photonic crystal fiber is optimized; and the manufacturing process can be used to prepare the photonic crystalfiber with low loss and have good application effect.

Description

technical field [0001] The invention relates to the manufacture of photonic crystal fibers, in particular to a process for manufacturing photonic crystal fibers. In particular, it refers to the low-loss manufacturing method of photonic crystal fiber and the protection and bundled device of the capillary. Background technique [0002] With the development of society and the advancement of technology, people's dependence on the Internet is getting higher and higher, and people's demand for information is also showing explosive growth. Optical fiber communication technology is also developing in the direction of modern high-speed optical communication. [0003] The long-distance backbone network and the access network are the two key networks of modern high-speed optical communication, while the braking and buffering of optical signals are the technical obstacles restricting the next generation of all-optical communication, and the signal power and link cumulative dispersion a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/025C03B37/014
CPCC03B37/01228C03B37/01202C03B37/0122C03B2203/42C03B2203/14C03B37/01861
Inventor 罗文勇李诗愈陈伟雷道玉胡福明黄文俊
Owner FENGHUO COMM SCI & TECH CO LTD
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