Panda-shaped microstructure fiber with silver wire filled elliptical core and preparation method of panda-shaped microstructure fiber

A micro-structured optical fiber and elliptical technology, which is applied in cladding optical fiber, glass manufacturing equipment, glass fiber products, etc., can solve problems such as poor effect and uneven metal

Active Publication Date: 2020-11-24
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some researchers use chemical methods to prepare metal-filled microstructure optical fibers. First, the liquid is filled into the microstructure pores of the optical fiber through air pressure, and then the metal is deposited on the surface of the pores inside the optical fiber through a chemical reaction. The metal produced by this method is extremely uneven. ,Ineffective

Method used

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  • Panda-shaped microstructure fiber with silver wire filled elliptical core and preparation method of panda-shaped microstructure fiber
  • Panda-shaped microstructure fiber with silver wire filled elliptical core and preparation method of panda-shaped microstructure fiber
  • Panda-shaped microstructure fiber with silver wire filled elliptical core and preparation method of panda-shaped microstructure fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] (1) Use quartz glass tubes with different inner diameters to draw capillaries: specifically, glass tubes with an outer diameter of 20 mm, an inner diameter of 14 mm, and a glass tube with an outer diameter of 16 mm and an inner diameter of 12 mm are drawn into capillaries with an outer diameter of 2 mm, and the inner diameters are respectively 1.4 mm. And the capillary of 1.5mm, wherein, the outer diameter is 2mm, inner diameter is the quartz glass capillary 3 of smaller inner diameter, and the outer diameter is 2mm, inner diameter is the quartz glass capillary 2 of larger inner diameter. A silver wire 4 with a diameter of 1.0 mm and a purity of 99.9% is stuffed into a capillary with an inner diameter of 1.4 mm, and one end of the silver-filled capillary is melted to death with an oxyhydrogen flame. The capillary tubes with an inner diameter of 1.4 mm are stacked into a hexagonal shape by using the ladder-type stacking method, and then the corresponding capillary tubes w...

Embodiment 2

[0068] A method for preparing a panda-shaped microstructure optical fiber filled with silver wires and an elliptical core is the same as that in Embodiment 1.

[0069] The parameter fitting curves of temperature and air pressure when preparing silver-filled elliptical-core panda-shaped microstructured optical fiber are as follows: Figure 8 As shown, when the fiber diameter is thicker, the temperature is higher, and the air holes in the cladding have been collapsed into a solid. At the beginning of wire drawing, the air holes in the cladding are mainly reduced by lowering the furnace temperature. Since the filaments are thicker at the beginning, the temperature drop is relatively large. When the furnace temperature drops to 1760°C, the pores in the cladding basically appear. At this time, a pressure holding device is added and the pressure threshold is gradually increased. As the filament becomes thinner, the optical fiber will become brittle. In order to prevent the optical ...

Embodiment 3

[0071] A method for preparing a panda-shaped microstructure optical fiber filled with silver wires and an elliptical core is the same as that in Embodiment 1.

[0072] A section of multimode optical fiber is fused to each end of this panda-shaped microstructure fiber filled with silver thread, and the two ends of the optical fiber are respectively connected to a broadband light source and a spectrometer. The schematic diagram of the experimental system is as follows: Figure 10 As shown in the figure, 1 is a silver-filled elliptical core panda-shaped microstructured optical fiber; 2 is a multimode optical fiber. The light emitted by the broadband light source passes through the panda-shaped silver-filled microstructured optical fiber and then enters the spectrometer. The spectrometer displays the transmission spectrum. The transmission spectrum is as follows: Figure 11 shown. It can be seen from the transmission spectrum that the transmission spectrum power of the panda-shap...

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Abstract

The invention provides a panda-shaped microstructure fiber with a silver wire filled elliptical core and a preparation method of the panda-shaped microstructure fiber and belongs to the field of special fiber preparation. According to the panda-shaped microstructure fiber with a silver wire filled elliptical core, preformed bars are distributed by adopting a ladder-type stacking and binding method, and silver wires fill inside a microstructure fiber; when the fiber is drawn, collapse of pores inside the fiber are effectively inhibited through air pressure control, and the outer diameter, the silver wire size and fiber core size of the fiber can meet the expected requirement at the same time by extra adding a spacing glass outer sleeve through the combination of air pressure control and secondary drawing process parameters. The panda-shaped microstructure fiber with silver wire the filled elliptical core prepared by the method enables two panda-like big pores to occur in adjacent positions of the fiber core, and the fiber core is extruded into elliptical shapes by the big pores. The panda-shaped microstructure fiber with the silver wire filled elliptical core can spontaneously generate surface plasma resonance effect since a metal material is arranged in the pores inside the panda-shaped microstructure fiber, and can be applied to optical filters.

Description

technical field [0001] The invention belongs to the field of preparation of special optical fibers, and in particular relates to a panda-shaped microstructure optical fiber filled with silver wires and an elliptical core and a preparation method thereof. Background technique [0002] With the advancement of preparation technology, microstructured optical fibers are continuously being made into miniaturized and integrated optical devices, and are widely used in various fields of optics, such as optical communications, wavelength division multiplexers, couplers, optical filters, ultrafast Nonlinear optics, optical sensing, supercontinuum light source and optical polarization beam splitting, etc. [0003] In metal-filled or metal-coated microstructured optical fibers, when light waves (electromagnetic waves) are incident on the interface between metal and dielectric, free electrons collectively oscillate on the metal surface to generate surface plasmon modes. Surface plasmon r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/012C03B37/026C03B37/027G02B6/02
CPCC03B37/0122C03B37/0124C03B37/026C03B37/027C03B2203/40C03B2205/40C03B2205/44C03B2205/70G02B6/02347
Inventor 李曙光娄俊波程同蕾张帆
Owner NORTHEASTERN UNIV
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