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A Quantum Dot-Doped Fiber Optic Taper for Fluorescence Enhancement and Mixing

A fiber-doped and fluorescence-enhanced technology, which is applied to light guides doped with fluorescent agents, fiber optic light guides, light guides, etc., can solve the problem of low fluorescence efficiency of a single quantum dot-doped fiber, complex monochromatic light source technology, and high cost. problem, to achieve the effect of small output spot area, high output optical power density, and simple installation and debugging

Active Publication Date: 2018-06-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of complex and expensive monochromatic light source technology and low fluorescence efficiency of a single quantum dot-doped optical fiber, the purpose of the present invention is to provide a quantum dot-doped optical fiber light cone for fluorescence enhancement and fluorescence mixing, And by adjusting the ratio of different quantum dot doped fibers, a variety of colored light can also be obtained

Method used

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  • A Quantum Dot-Doped Fiber Optic Taper for Fluorescence Enhancement and Mixing
  • A Quantum Dot-Doped Fiber Optic Taper for Fluorescence Enhancement and Mixing
  • A Quantum Dot-Doped Fiber Optic Taper for Fluorescence Enhancement and Mixing

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Embodiment 1

[0029] A method for preparing a quantum dot-doped fiber optic cone for fluorescence enhancement:

[0030] (1) Preparation of optical fiber monofilament: Weigh 70g of the raw material of quantum dot-doped optical fiber (SiO 2 :B 2 o 3 :Al 2 o 3 : CaCO 3 : Na 2 CO 3: the molar ratio of ZnS is 60:16:4:10:10:1), mix evenly, then put it in a crucible and keep it warm at 1350°C for 1 hour in a glass melting furnace to obtain molten glass; pour the molten glass Quench on a steel plate with a preheating temperature of 400°C, and after cooling to room temperature, cut and polish the glass to obtain a glass rod with a diameter of 2mm, which is the core of the quantum dot-doped glass optical fiber; then insert the core into the quartz material In the prepared cladding tube, the optical fiber is drawn with a fiber drawing machine. The drawing condition is that the temperature is 800°C and the drawing speed is 100r / min to obtain a quantum dot-doped optical fiber monofilament with a ...

Embodiment 2

[0034] A method for preparing a quantum dot-doped fiber optic cone for fluorescence mixing:

[0035] (1) Preparation of fiber monofilaments capable of exciting red fluorescence and green fluorescence fibers: Weigh 70 g of quantum dot-doped optical fiber raw materials (SiO 2 :B 2 o 3 :Al 2 o 3 : CaCO 3 : Na 2 CO 3 : The molar ratio of ZnS is 60:16:4:10:10:1) and the raw material (SiO 2 :B 2 o 3 :Al 2 o 3 : CaCO 3 : Na 2 CO 3 : The molar ratio of ZnS:PbO is 60:16:4:10:10:1:0.8), respectively mixed evenly, and then placed in two crucibles and kept at 1350°C for 1 hour in a glass melting furnace to obtain glass melting pour the molten glass on a steel plate with a preheating temperature of 400°C and quench it. After cooling to room temperature, the glass is cut and polished to obtain a glass rod with a diameter of 1 mm, which is the core of a quantum dot-doped glass optical fiber. ; Insert the fiber core into the cladding tube made of quartz material, and then draw ...

Embodiment 3

[0039] A method for preparing a quantum dot-doped fiber optic cone for fluorescence enhancement:

[0040] (1) Preparation of optical fiber monofilament: Weigh 70g of the raw material of quantum dot-doped optical fiber (SiO 2 :B 2 o 3 :Al 2 o 3 : CaCO 3 : Na 2 CO 3 : the molar ratio of PbS is 60:16:4:10:10:0.5), mix evenly, then place it in a crucible and keep it warm at 1350°C for 1 hour in a glass melting furnace to obtain a glass melt; pour the glass melt Quench on a steel plate with a preheating temperature of 400°C, and after cooling to room temperature, cut and polish the glass to obtain a glass rod with a diameter of 1.6mm, which is the core of the quantum dot-doped glass optical fiber; then insert the core into the quartz In the cladding tube prepared by the material, the optical fiber is drawn by a fiber drawing machine, the drawing condition is 800°C, the drawing speed is 100r / min, and a quantum dot-doped optical fiber monofilament with a diameter of 100 μm is ...

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Abstract

The present invention belongs to the field of quantum dot luminescence and fibers, and discloses a quantum dot doped fiber light cone for enhancement and mixture of fluorescence. The light cone comprises a quantum dot doped fiber light cone for single-color fluorescence enhancement and a quantum dot doped fiber light cone for colorful fluorescence. The quantum dot doped fiber light cone for single-color fluorescence enhancement and the quantum dot doped fiber light cone for colorful fluorescence are made through the following steps: fiber monofilaments are manufactured through quantum dot doped fibers; a plurality of monofilaments is drawn to manufacture multifilaments; and finally, the multifilaments with different monochromatic lights are uniformly arranged at regular intervals in a die in a hexagonal packing mode, then the die is disposed in an isostatic pressing forming machine for melting pressure thermal insulation and cooling, and tapering is performed through a pulling method. The cone body has two end faces having different diameters, and the length of the light cone is 2 to 10cm, wherein the diameter of the end face having a large diameter is 3 to 10cm, and the diameter of the end face having a small diameter is 0.5 to 1cm. The quantum dot doped fiber light cone for enhancement and mixture of fluorescence is convenient and flexible, is simple in installation and debugging, and has high output optical power density, small output light spot area and high monochromatic light purity; and moreover, through the regulation of the proportion of different quantum dot doped fibers, a plurality of colorama may be obtained, therefore the quantum dot doped fiber light cone for enhancement and mixture of fluorescence may be widely used in the luminescent devices.

Description

technical field [0001] The invention belongs to the field of quantum dot luminescence and optical fiber, and in particular relates to a quantum dot-doped optical fiber light cone for fluorescence enhancement and fluorescence mixing. Background technique [0002] The general light source is polychromatic light mixed with monochromatic light of different wavelengths. In physics, the so-called monochromatic light refers to electromagnetic radiation with a single wavelength that cannot be decomposed by dispersion. In practice, there is no light source It can produce pure monochromatic light, and we usually call the light with a very narrow linewidth of the emitted light wave also called monochromatic light. At present, the main means of obtaining monochromatic light sources are lasers and monochromators, but the equipment used in lasers and monochromators is complex, expensive, and inconvenient to use, and the laser is limited by its emission mechanism, and its wavelength band i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00
CPCG02B6/0003G02B6/0008
Inventor 董国平王海鹏邱建荣陈冠仲谢文煜
Owner SOUTH CHINA UNIV OF TECH
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