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Erbium and terbium co-doped fluoride halide phosphate laser glass as well as preparation method and application thereof

A fluorohalophosphate and laser glass technology, applied in the field of fluorohalophosphate glass and its preparation

Active Publication Date: 2013-07-03
合肥天奕激光医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned technical shortcomings, provide a kind of erbium and terbium co-doped fluorohalophosphate laser glass and its preparation method, which is different from the previous glass Compared with the matrix material, this material overcomes the inherent shortcomings of fluoride glass (poor thermal stability) and phosphate glass (higher phonon energy). On the basis of improving the thermal stability of the glass, erbium is used Co-doped with terbium, under the pumping of a laser diode with a wavelength of 980nm, a strong 3 m fluorescence can be obtained, which is 3m-band laser provides a suitable host material

Method used

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  • Erbium and terbium co-doped fluoride halide phosphate laser glass as well as preparation method and application thereof
  • Erbium and terbium co-doped fluoride halide phosphate laser glass as well as preparation method and application thereof
  • Erbium and terbium co-doped fluoride halide phosphate laser glass as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]According to the formula in Table 1, calculate the weight of the corresponding components, 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 900°C for 20 minutes to obtain molten glass. During the glass melting process, high-purity oxygen is always passed through for atmosphere protection to remove 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 360°C, and then quickly placed in a muffle furnace that has been heated to 410°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 temperature to obtain the annealed erbium and terbium co-doped fluorohalophosphate glass.

[0046] The annealed erbium and terbium co-doped fluorohalophosphate glass was processed into a 10×20×1 mm glass plate and po...

Embodiment 2

[0049] According to the formula in Table 1, calculate the weight of the corresponding components, 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 950°C for 15 minutes to obtain molten glass. During the glass melting process, high-purity oxygen is always passed through for atmosphere protection to remove 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 370°C, and then quickly placed in a muffle furnace that has been heated to 420°C. The rate is lowered to 100° C., then the muffle furnace is closed, and the temperature is lowered to room temperature to obtain the annealed erbium and terbium co-doped fluorohalophosphate glass.

[0050] Take the erbium and terbium co-doped fluorohalophosphate glass after the above annealing, grind it into a fine powder with an agate mortar, and con...

Embodiment 3

[0056] According to the formula in Table 1, calculate the weight of the corresponding components, 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 18 minutes to obtain molten glass. During the glass melting process, high-purity oxygen is always passed through for atmosphere protection to remove 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 370°C, and then quickly placed in a muffle furnace that has been heated to 425°C, and kept for 3 hours, and then heated at a temperature of 9°C / hour. The rate was lowered to 110° C., then the muffle furnace was closed, and the temperature was lowered to room temperature to obtain the annealed erbium and terbium co-doped fluorohalophosphate glass.

[0057] The annealed erbium and terbium co-doped fluorohalophosphate glass was proc...

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Abstract

The invention discloses erbium and terbium co-doped fluoride halide phosphate laser glass which comprises components in percentage by mole as follows: 15% to 20% of Ba(H2PO4)2, 15% to 20% of Mg(PO3)2, 5% to 10% of AlF3, 10% to 20% of BaF2, 15% to 30% of MgF2, 20% to 30% of NaX, 1% to 5% of ErF3 and 4% to 10% of TbF3, wherein X is a combination of any one or more of F, Cl, Br and I. The fluoride halide phosphate laser glass is transparent and free of crystallization, the infrared transmittance is high in an area nearby 3 mu m, physical and chemical properties are excellent, the laser glass can be applied in a 3 m fiber laser and can be hopefully applied to defense industry, military and civilian areas.

Description

technical field [0001] The invention relates to a fluorohalophosphate glass, a preparation method and application thereof. Background technique [0002] 3mm band rare earth doped laser glass and optical fiber will have broad application prospects in the fields of national security and national defense construction, astrophysics detection and spectroscopy research. At present, the 3μm laser output is only obtained in fluoride glass, mainly due to the high doping concentration of rare earth ions and the high infrared transmittance in the 3μm band, but fluoride glass also has inherent defects, such as chemical stability and mechanical strength. Poor, harsh preparation conditions, easy to be eroded by moisture, poor anti-devitrification performance (?T ≤85°C), etc. [0003] The introduction of phosphorus-containing components into the fluoride glass system improves the physical and chemical properties of the fluoride glass, but the phonon energy of the fluorophosphate glass is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/247C03C13/04
CPCC03C3/247C03C13/048
Inventor 田颖徐时清张军杰邓德刚赵士龙
Owner 合肥天奕激光医疗器械有限公司
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