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Method for manufacturing supporting type hollow-core anti-resonance optical fiber

An anti-resonance, support-type technology, applied in multi-layer core/clad fibers, clad fibers, optics, etc., can solve the problems of collapse and deformation of the clad resonance unit, achieve structural stability, improve collapse and deformation, structure reliable results

Active Publication Date: 2021-08-20
广州大鱼创福科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the nested anti-resonant hollow core fiber was mainly fixed in one side direction or added with a flat plate thin layer, and the cladding resonant unit was prone to collapse and deformation during the drawing process.

Method used

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  • Method for manufacturing supporting type hollow-core anti-resonance optical fiber
  • Method for manufacturing supporting type hollow-core anti-resonance optical fiber
  • Method for manufacturing supporting type hollow-core anti-resonance optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] S1, select a quartz glass tube with a refractive index of 1.45 (SiO 2 ) as the material for making the outer cladding and inner cladding of the hollow-core anti-resonant optical fiber, and the innermost anti-resonant glass tubes, central glass tubes, supporting glass tubes and outer cladding glass tubes of different sizes and quantities are drawn respectively:

[0066] S11. Fabricate the innermost anti-resonant glass tube with a radius of 3750 μm and a thickness of 40 μm:

[0067] S111. Determine the radius d of the innermost anti-resonant capillary 3 according to the parameters such as the core diameter, the tube spacing and the number of tubes 1 , the specific expression is as follows:

[0068]

[0069] In the formula, Dc is the diameter of the core area 2, and the value of Dc is 35 μm, g 1 is the tube gap between two adjacent innermost anti-resonance capillaries 3, g 1 The value is taken as 2.7 μm, and N is the number of tubes4.

[0070] S112. The specific exp...

Embodiment 2

[0091] S1, select a quartz glass tube with a refractive index of 1.45 (SiO 2 ) as the material for making the outer cladding and inner cladding of the hollow-core anti-resonant optical fiber, and the innermost anti-resonant glass tubes, central glass tubes, supporting glass tubes and outer cladding glass tubes of different sizes and quantities are drawn respectively:

[0092]S11. Fabricate the innermost anti-resonant glass tube with a radius of 2150 μm and a thickness of 40 μm:

[0093] S111. Determine the radius d of the innermost anti-resonant capillary 3 according to the parameters such as the core diameter, the tube spacing and the number of tubes 1 , the specific expression is as follows:

[0094]

[0095] In the formula, Dc is the diameter of the core area 2, and the value of Dc is 35 μm, g 1 is the tube gap between two adjacent innermost anti-resonance capillaries 3, g 1 The value is 2.7 μm, and N is the number of tubes 5.

[0096] S112. The specific expression o...

Embodiment 3

[0116] S1, select a quartz glass tube with a refractive index of 1.45 (SiO 2 ) as the material for making the outer cladding and inner cladding of the hollow-core anti-resonant optical fiber, and the innermost anti-resonant glass tubes, central glass tubes, support glass tubes, flat glass rods and outer cladding glass tubes are drawn out in different sizes and quantities :

[0117] S11. Fabricate the innermost anti-resonant glass tube with a radius of 3750 μm and a thickness of 40 μm:

[0118] S111. Determine the radius d of the innermost anti-resonant capillary 3 according to the parameters such as the core diameter, the tube spacing and the number of tubes 1 , the specific expression is as follows:

[0119]

[0120] In the formula, Dc is the diameter of the core area 2, and the value of Dc is 35 μm, g 1 is the tube gap between two adjacent innermost anti-resonance capillaries 3, g 1 The value is 2.7 μm, and N is the number of tubes.

[0121] S112. The specific expres...

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Abstract

The invention provides a method for manufacturing a supporting type hollow-core anti-resonance optical fiber. The method comprises the following specific steps of: firstly, selecting a quartz glass (SiO2) tube as a material for manufacturing an outer cladding layer and an inner cladding layer of the hollow-core anti-resonance optical fiber, and respectively drawing innermost-layer anti-resonance glass tubes, central glass tubes, supporting glass tubes and outer cladding layer glass tubes which are different in size and quantity; selecting the innermost anti-resonance glass tubes, supporting glass tubes and central glass tubes so as to assemble inner cladding anti-resonance units; then annularly and uniformly arranging the inner cladding anti-resonance units on the inner wall of the outer cladding glass tubes to assemble a complete preform; and finally, preparing an intermediate, drawing the intermediate into the hollow-core anti-resonance optical fiber, and applying a protective layer on the surface of the optical fiber. The leakage loss of the drawn hollow-core anti-resonance optical fiber on the communication wave band is lower than 0.1 dB / km, effective single-mode transmission can be achieved, the problems of collapse, deformation and the like of the cladding anti-resonance capillary tubes are solved, and the structure of the cladding anti-resonance tubes is more reliable.

Description

technical field [0001] The invention relates to the technical field of photonic crystal fibers, in particular to a method for making a supported hollow-core anti-resonance fiber. Background technique [0002] Compared with the traditional optical fiber guiding light to propagate in the glass core, the hollow-core photonic crystal fiber makes the light be confined in the air core for propagation, which improves the damage threshold of the optical fiber. Hollow-core fibers can be divided into photonic bandgap fibers, Kagome fibers, and hollow-core antiresonant fibers. Compared with the other two types of hollow-core fibers, anti-resonant hollow-core fibers have a simpler structure, more flexible design, lower transmission loss and better single-mode characteristics, and have become a hot spot in fiber research. [0003] By changing or optimizing the structure of the anti-resonance hollow-core fiber, reducing the limiting loss and increasing the bandwidth, the anti-resonance p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/012C03B37/027G02B6/02G02B6/036
CPCC03B37/01211C03B37/02781C03B37/01222G02B6/02328G02B6/02342G02B6/03605
Inventor 赵兴涛吴轩瑞项景亮李志伟成玉峰马文博
Owner 广州大鱼创福科技有限公司
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