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Long-distance micro/nano-core glass optical fiber and preparation method thereof

A glass fiber and nano-core technology, applied in the field of micro-nano optical devices, can solve the problems of difficulty in large-scale production, limited length of micro-nano fibers, etc., and achieve the effects of controllable fiber structure size, wide selection range, and stable process.

Inactive Publication Date: 2013-04-03
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, the preparation method of the optical fiber. The length of the micro-nano optical fiber prepared by the two-step tip stretching, chemical synthesis and tapered optical fiber drawing methods commonly used at present is limited, and it is difficult to achieve large-scale production.

Method used

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  • Long-distance micro/nano-core glass optical fiber and preparation method thereof
  • Long-distance micro/nano-core glass optical fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 (eg figure 2 shown) :

[0015] (1) Doped with Tb 3+ Phosphate glass-clad lumps are put into the extruder (the lumps have a refractive index of 1.50, a diameter of 80 mm, and a length of 100 mm, Tb 3+ The concentration is 8.6×10 20 cm -3 ), extrude a casing with an inner diameter of 3 mm and an outer diameter of 21 mm at 600 °C;

[0016] (2) Put the phosphate glass core material with a refractive index of 1.65 into the wire drawing machine, and draw a core rod with a diameter of 3 mm at 600 °C;

[0017] (3) Insert a core rod with a diameter of 3 mm into a casing with an inner diameter of 3 mm and an outer diameter of 21 mm, and shrink it by 7 times at 600 °C through a wire drawing machine to obtain a combined glass rod tube A with an inner diameter of 428 μm and an outer diameter of 3 mm ;

[0018] (4) Insert the combined glass rod tube A into the casing with an inner diameter of 3 mm and an outer diameter of 21 mm, and shrink it by 7 times through a ...

Embodiment 2

[0021] (1) will be doped with Yb 3+ The phosphate glass-clad lump is put into the extruder (the lump has a refractive index of 1.50, a diameter of 100 mm, and a length of 150 mm, Yb 3+ The concentration is 8.3×10 20 cm -3 ), at 600 °C extrude a casing with an inner diameter of 3 mm and an outer diameter of 18 mm;

[0022] (2) Put the phosphate glass core material with a refractive index of 1.65 into the wire drawing machine, and draw a core rod with a diameter of 3 mm at 600 °C;

[0023] (3) Insert a core rod with a diameter of 3 mm into a casing with an inner diameter of 3 mm and an outer diameter of 18 mm, and shrink it by 6 times through a wire drawing machine at 600 °C to obtain a combined glass rod tube A with an inner diameter of 500 μm and an outer diameter of 3 mm ;

[0024] (4) Insert the combined glass rod tube A into the casing with an inner diameter of 3 mm and an outer diameter of 18 mm, and shrink it by 6 times through a wire drawing machine at 600 °C to obt...

Embodiment 3

[0027] (1) Will be doped with Nd 3+ The phosphate glass-clad lump is put into the extruder (the lump has a refractive index of 1.52, a diameter of 100 mm, a length of 150 mm, Nd 3+ The concentration is 2×10 19 cm -3 ), at 600 °C extrude a casing with an inner diameter of 3 mm and an outer diameter of 25 mm;

[0028] (2) Take Nd-doped again 3+Put the phosphate glass cladding lump into the extruder, and extrude a casing with an inner diameter of 4 mm and an outer diameter of 25 mm at 600 °C;

[0029] (3) Take Nd-doped for the third time 3+ Put the phosphate glass cladding lump into the extruder, and extrude a casing with an inner diameter of 5 mm and an outer diameter of 30 mm at 600 °C;

[0030] (4) Put the phosphate glass core material with a refractive index of 1.68 into the extruder, and extrude a core rod with a diameter of 4 mm at 600 °C;

[0031] (5) Insert a core rod with a diameter of 4 mm into a casing with an inner diameter of 4 mm and an outer diameter of 25 m...

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Abstract

The invention provides a long-distance micro / nano-core glass optical fiber and a preparation method thereof. The invention mainly comprises the aspects of optical fiber matrix material, rare-earth doping, refringence of core wrap, dimensions of core wrap, casing, multistep stretching method and the like. The micro / nano-core glass optical fiber has the characteristics of low optical loss, large-proportion evanescent wave transmission, large waveguide dispersion and the like. The preparation method has the advantages of high accuracy, controllable structural dimensions and the like, and can be used for preparing long-distance micro / nano-core glass optical fibers. The invention can be well applied to design and preparation of long-distance micro / nano-core glass optical fibers, and provides a feasible design and preparation technique of a long-distance micro / nano-core glass optical fiber.

Description

technical field [0001] The invention relates to a long-distance micron or nanometer core glass optical fiber and a preparation method thereof, belonging to the field of micronano optical devices. Background technique [0002] Microelectronics, optoelectronics and photonics are the backbone of modern optical communication and light sensing industries. With the development of device design theory and manufacturing technology, as well as the improvement of device performance, integration and energy consumption, the characteristic linewidth of microelectronic and optoelectronic devices has reached sub-wavelength or nanometer size. Among the information transmission materials of network communication, optical fiber is recognized as the transmission medium with the largest communication bandwidth, attracting more and more researchers' attention. In recent years, micro-nano optical fibers such as nanocones, nanowires, and sub-wavelength diameter fibers have been reported one after...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/04C03B37/025
Inventor 韦玮彭波陈云戴微微卢星唐子汇
Owner NANJING UNIV OF POSTS & TELECOMM
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