A panda-shaped microstructure optical fiber filled with silver wire and an elliptical core and its preparation method

A microstructure optical fiber, elliptical technology, applied in the direction of cladding optical fiber, glass manufacturing equipment, glass fiber products, etc., can solve the problems of uneven metal and poor effect, and achieve the effect of suppressing collapse

Active Publication Date: 2021-10-22
NORTHEASTERN UNIV LIAONING
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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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  • A panda-shaped microstructure optical fiber filled with silver wire and an elliptical core and its preparation method
  • A panda-shaped microstructure optical fiber filled with silver wire and an elliptical core and its preparation method
  • A panda-shaped microstructure optical fiber filled with silver wire and an elliptical core and its preparation method

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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

A panda-shaped microstructure optical fiber filled with silver wire and an elliptical core and a preparation method thereof belong to the field of preparation of special optical fibers. The panda-shaped micro-structure optical fiber filled with silver wire has an elliptical core. The preform rods are arranged in a ladder-type stacking and bundling method, and the silver wire is filled into the micro-structure optical fiber. When drawing the optical fiber, air pressure control is used to effectively suppress the collapse of the internal pores of the optical fiber. By adding a limit glass outer sleeve, combined with the combination of air pressure control and secondary drawing process parameters, the outer diameter, silver wire size and fiber core size of the optical fiber can be adjusted. At the same time meet the expected requirements. The silver-filled elliptical core panda-shaped microstructured optical fiber prepared by this method can have two large panda-shaped large holes on the adjacent position of the fiber core, and the large holes squeeze the fiber core into an ellipse. The core-shaped Panda-shaped microstructured optical fiber has a metal material inside the air hole, which can spontaneously generate the surface plasmon resonance effect, and can be used in 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 Patents(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 LIAONING
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