High erbium-doped lead-free fluoride (halide) tellurate laser glass, and preparation method and application thereof

A lead-fluorine-halogen tellurite, high-doping technology, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of poor chemical stability and mechanical strength, low glass transition temperature, low phonon energy, etc., and achieve production cost Low cost, simple preparation, safe and simple effect

Active Publication Date: 2015-03-04
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem facing erbium-doped laser glass in the 3 μm band is to find a host material with low phonon energy, good physical and chemical properties, and high doping of rare earth ions
In terms of phonon energy and rare earth doping concentration, fluorine halide glass has great advantages, but its chemical stability and mechanical strength are poor, the glass transition temperature is low (ΔT≤85°C), and it is prone to thermal damage Phenomena and other problems limit its application

Method used

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  • High erbium-doped lead-free fluoride (halide) tellurate laser glass, and preparation method and application thereof
  • High erbium-doped lead-free fluoride (halide) tellurate laser glass, and preparation method and application thereof
  • High erbium-doped lead-free fluoride (halide) tellurate laser glass, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A highly erbium-doped lead-free fluorohalogen tellurite glass, made of the following components in terms of molar percentage: AlF 3 20%, BaF 2 20%, CaF 2 10%, ZnCl 2 10%, TeO 2 30%, YF 3 1%, LaF 3 6%, ErF 3 3%. Calculate the weight of the corresponding components according to the above formula, weigh the raw materials and mix them evenly; put the mixture in a platinum crucible and melt it in a silicon carbide rod electric furnace at 800°C for 20 minutes to obtain molten glass, During the production process, high-purity oxygen is always introduced to protect the atmosphere to remove the moisture in the molten glass. After being homogenized and clarified, the dehydrated glass liquid is quickly poured into a mold that has been preheated to 370°C, and then quickly placed in a muffle furnace that has been heated to 430°C and kept for 2 hours; The muffle furnace is lowered to 100° C., then the muffle furnace is closed, and the temperature is lowered to room temperatur...

Embodiment 2

[0030] A highly erbium-doped lead-free fluorohalogen tellurite glass, made of the following components in terms of molar percentage: AlF 3 35%, BaF 2 25%, CaF 2 10%, ZnCl 2 10%, TeO 2 15%, YF 3 2%, LaF 3 0%, ErF 3 3%. Calculate the weight of the corresponding components according to the above formula, weigh the raw materials and mix them evenly; put the mixture into a platinum crucible and melt it in a silicon carbide rod electric furnace at 900°C for 25 minutes to obtain molten glass, During the production process, high-purity oxygen is always introduced to protect the atmosphere to remove the moisture in the molten glass. After the dehydrated glass liquid is homogenized and clarified, it is quickly poured into a mold that has been preheated to 375°C, and then quickly placed in a muffle furnace that has been heated to 445°C, and kept warm for 3 hours, and then heated at a temperature of 10°C / hour. The rate was lowered to 90° C., and then the muffle furnace was closed,...

Embodiment 3

[0033] A highly erbium-doped lead-free fluorohalogen tellurite glass, made of the following components in terms of molar percentage: AlF 3 21%, BaF 2 35%, CaF 2 11%, ZnCl 2 5%, ZnI 2 6%, TeO 2 16%, YF 3 2%, LaF 3 1%, ErF 33%. Calculate the weight of the corresponding components according to the above formula, weigh the raw materials and mix them uniformly; put the mixture into a platinum crucible and melt it in a silicon carbide rod electric furnace at 1000°C for 30 minutes to obtain molten glass, which is then melted in the glass melting During the production process, high-purity oxygen is always introduced to protect the atmosphere to remove the moisture in the molten glass. After being homogenized and clarified, the water-removed glass liquid is quickly poured into a mold that has been preheated to 390°C, and then quickly placed in a muffle furnace that has been heated to 455°C, kept for 3 hours, and then heated at a temperature of 9°C / hour. The rate is lowered to ...

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Abstract

The invention relates to high erbium-doped lead-free fluoride (halide) tellurate glass, and a preparation method and application thereof. The high erbium-doped lead-free fluoride (halide) tellurate glass is prepared from the following components in percentage by mol: 20-35% AlF3, 20-35% of BaF2, 10-20% of CaF2, 10-20% of ZnBr2, ZnCl2 and / or ZnI2, 15-30% of TeO2, 2-8% of YF3+LaF3 and 3-7% of ErF3, wherein the sum of the mol percents of all the components is 100%. The fluoride (halide) phosphate glass prepared by a fusion method is transparent, causes no crystallization, and has high infrared transmittance around 3mu m and fine physicochemical property. The glass can be used for a 3mu m fiber laser, and is hopefully used in the fields of national defense industry, military and civilian use.

Description

technical field [0001] The invention relates to a high-erbium-doped lead-free fluorine-halogen tellurate glass and its preparation method and application. Background technique [0002] Because the laser light obtained by erbium in the 3μm band is close to the absorption peak of water, it is extremely safe for human eyes and covers many toxic gas absorption bands. Therefore, erbium-doped laser materials in the 3 μm band are also widely used in the fields of laser medical treatment, environmental monitoring, atmospheric detection, and earth environmental physics. Among several methods for obtaining all-solid-state lasers in the 3 μm band, erbium-doped glass and optical fiber have become the focus of research and development of mid-infrared solid-state lasers due to their advantages of all-solid state, high power output, good stability, and low cost. [0003] In order to meet the requirements of integrated optics, the size of the fiber laser should be as small as possible, so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/00C03C3/23C03B37/012
Inventor 徐时清田颖张军杰邓德刚赵士龙王焕平黄立辉
Owner CHINA JILIANG UNIV
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