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Phosphorus germanate glass composition containing erbium and neodymium and application of composition

A glass composition and phosphogermanate technology, applied in the field of glass composition, can solve the problems of poor chemical stability and mechanical properties, high melting temperature of germanate glass, poor solubility of rare earth, etc., and improve the forming ability and excellent mechanical properties, thermal stability and physicochemical properties, and the effect of overcoming poor mechanical and chemical properties

Inactive Publication Date: 2012-06-27
SHENZHEN JOSEN INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex preparation process, poor chemical stability and mechanical properties of the above-mentioned substances, it is difficult to industrialize them (see J . Y Allain , M . Monerie , and H . Poignant , Room temperature cw tunable green upconversion holmium fiber laser, Electron. Lett. 1990, 26 (4): 261-262)
Fused silica glass has good physical properties, but its phonon energy is high (1100cm~1), and its rare earth solubility is poor
The application of germanate glass is also limited due to high melting temperature and expensive raw material cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Get 70 grams of powdery raw materials phosphorus pentoxide, 7.5 grams of germanium dioxide, 20 grams of zinc oxide, 0.5 grams of erbium oxide, and 2 grams of neodymium oxide, and mix the above raw materials evenly. Put the mixture into a quartz tong pot or a platinum tong pot, and cover the platinum tong pot to prevent Cl -1 of volatilization. Put the quartz tongs or platinum tongs filled with alloy materials in a silicon carbide rod electric furnace for melting, the melting temperature is 1300-1450°C, and dry nitrogen is introduced for atmosphere protection during the melting process. After the raw materials are completely melted and homogenized and clarified, they are released from the furnace at 1000-1200 ° C. After the furnace is released, the molten glass is quickly poured on the preheated iron mold to form it. The formed glass is then placed in a muffle furnace that has been heated to around the material transition temperature (Tg) of 436°C for annealing. During...

Embodiment 2

[0025] Get 60 grams of powdery raw materials phosphorus pentoxide, 7.5 grams of germanium dioxide, 10 grams of zinc oxide, 20 grams of zinc chloride, 0.5 grams of erbium oxide, and 2 grams of neodymium oxide, and mix the above raw materials evenly. Put the mixture into a quartz tong pot or a platinum tong pot, and cover the platinum tong pot to prevent Cl -1 of volatilization. Put the quartz tongs or platinum tongs filled with alloy materials in a silicon carbide rod electric furnace for melting, the melting temperature is 1300-1450°C, and dry nitrogen is introduced for atmosphere protection during the melting process. After the raw materials are completely melted and homogenized and clarified, they are released from the furnace at 1000-1200 ° C. After the furnace is released, the molten glass is quickly poured on the preheated iron mold. Then put the formed glass into a muffle furnace that has been heated to a material transition temperature (Tg) of 419°C for annealing. The...

Embodiment 3

[0028] Get 50 grams of powdery raw materials phosphorus pentoxide, 4 grams of germanium dioxide, 10 grams of zinc oxide, 30 grams of zinc chloride, 1 gram of erbium oxide, and 5 grams of neodymium oxide, and mix the above raw materials evenly. Put the mixture into a quartz tong pot or a platinum tong pot, and cover the platinum tong pot to prevent Cl -1 of volatilization. Put the quartz tongs or platinum tongs filled with alloy materials in a silicon carbide rod electric furnace for melting, the melting temperature is 1300-1450°C, and dry nitrogen is introduced for atmosphere protection during the melting process. After the raw materials are completely melted and homogenized and clarified, they are released from the furnace at 1000-1200 ° C. After the furnace is released, the molten glass is quickly poured on the preheated iron mold. Then put the formed glass into a muffle furnace that has been heated to a material transition temperature (Tg) of 408°C for annealing. Then the...

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PUM

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Abstract

The invention relates to a phosphorus germanate glass composition containing erbium and neodymium and application of the composition. The composition comprises the following components by molar percentage: 40-70 of phosphorus pentoxide, 0-7.5 of germanium dioxide, 4-20 of zinc oxide, 0-50 of zinc chloride, 0.5-1 of erbium oxide and 2-5 of neodymium oxide. The glass composition can be applied to production of near-infrared laser output glass chips. The composition and the application of the composition have the advantages that the crystallization resistance is high, the thermal stability and the physical and chemical properties are good, the laser threshold can be reduced effectively, and the near-infrared laser has stable properties.

Description

technical field [0001] The invention relates to a glass composition, in particular to a phosphogermanate glass composition containing erbium and neodymium elements for near-infrared laser output. Background technique [0002] Near-infrared laser has broad application prospects in laser medical treatment, human eye safety lidar, remote sensing detection, atmospheric monitoring, etc., especially in the application of human physiotherapy, such as treating hyperlipidemia, reducing blood viscosity to prevent cardiovascular and cerebrovascular diseases, The treatment of cardiovascular and cerebrovascular diseases and the prevention of high blood pressure have received widespread attention. What is commonly used at present is to directly act on the human body with the 650-780 nm visible red laser emitted by the semiconductor laser. However, the laser in this band has relatively high energy due to its short wavelength. The infrared laser with a wavelength near 1 micron has moderat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/253
Inventor 卢子忱
Owner SHENZHEN JOSEN INDAL
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