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Rare earth doped gallium germanium bismuth lead luminous glass material and its preparation method and uses

A technology of luminescent glass and bismuth lead, which is applied to the application of the above luminescent glass material, the rare earth-doped gallium germanium bismuth lead luminescent glass material, and the preparation field of the above luminescent glass material, can solve the large gap, chemical stability and mechanical strength. Poor, limited application, etc.

Inactive Publication Date: 2006-07-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of fluoride glass as a rare earth-doped optical fiber matrix material is its poor chemical stability and mechanical strength, and it is difficult to draw optical fibers due to easy devitrification, which greatly limits its application.
However, the traditional oxide glass with good chemical stability and mechanical strength is difficult to obtain high-efficiency upconversion luminescence due to the high phonon energy. In addition, Tm3+ ions in the glass with high phonon energy due to the influence of multi-phonon relaxation It is difficult to observe the luminescence in the 1.47μm band
In addition, although the upconversion luminous efficiency of rare earth ions in tellurite glasses is much higher than that of traditional oxide glasses such as borate, silicate and phosphate, there is still a large gap compared with non-oxide glasses. gap; in addition, the anti-devitrification stability of tellurate glass is relatively poor, and devitrification is easy to occur during the optical fiber drawing process, making it difficult to be practical [see U.S.patent 6356387, published on March 12, 2002, named TELLURITE GLASS, OPTICAL AMPLIFIER, AND LIGHTSOURCE]

Method used

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  • Rare earth doped gallium germanium bismuth lead luminous glass material and its preparation method and uses
  • Rare earth doped gallium germanium bismuth lead luminous glass material and its preparation method and uses
  • Rare earth doped gallium germanium bismuth lead luminous glass material and its preparation method and uses

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Experimental program
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Effect test

Embodiment 1

[0042] (1) Weigh 20g of the following mole percentage components, mix them evenly, put them into a covered platinum crucible and place them in a silicon carbon rod electric furnace for melting, the melting temperature is 1100°C, and the melting time is 30 minutes The molten glass is obtained, and after the molten liquid is clarified, it is poured into a preheated stainless steel mold to obtain glass;

[0043] (2) Quickly put the above glass into the material that has been heated to the material transition temperature T g (344° C.) in a muffle furnace for 1 hour, then cool down to 100° C. at a rate of 10° C. / hour, turn off the power, and automatically cool down to room temperature to obtain the luminescent glass material of the present invention.

[0044] Each component and its mole percentage are:

[0045] Ga 2 o 3 0; GeO 2 70; 2 o 3 15; PbO 10;

[0046] PbF 2 5; Er 2 o 3 1.5; Yb 2 o 3 1.0.

[0047] Take a small part of the sample ...

Embodiment 2

[0050] (1) Weigh 20g of the following mole percentage components, mix them evenly, put them into a covered platinum crucible and place them in a silicon carbon rod electric furnace for melting, the melting temperature is 900°C, and the melting time is 30 minutes The molten glass is obtained, and after the molten liquid is clarified, it is poured into a preheated stainless steel mold to obtain glass;

[0051] (2) Quickly put the above glass into the material that has been heated to the material transition temperature T g (357° C.) in a muffle furnace for 1 hour, then cool down to 100° C. at a rate of 5° C. / hour, turn off the power, and automatically cool down to room temperature to obtain the luminescent glass material of the present invention.

[0052] Each component and its molar content are:

[0053] Ga 2 o 3 30; GeO 2 0; Bi 2 o 3 20; PbO5;

[0054] PbF 2 45;Tm 2 o 3 1.5; Yb 2 o 3 2.

[0055] Take a small part of the sampl...

Embodiment 3

[0058] (1) Weigh 20g of the following mole percentage components, mix them evenly, put them into a covered platinum crucible and place them in a silicon carbon rod electric furnace for melting, the melting temperature is 1000°C, and the melting time is 20 minutes The molten glass is obtained, and after the molten liquid is clarified, it is poured into a preheated stainless steel mold to obtain glass;

[0059] (2) Quickly put the above glass into the material that has been heated to the material transition temperature T g (357° C.) in a muffle furnace for 1 hour, then cool down to 100° C. at a rate of 8° C. / hour, turn off the power, and automatically cool down to room temperature to obtain the luminescent glass material of the present invention.

[0060] Each component and its molar content are:

[0061] Ga 2 o 3 15; GeO 2 20; 2 o 3 50; PbO 15;

[0062] PbF20; Tm 2 o 3 0.2; 2 o 3 2.

[0063] Take the annealed sample and process it into a 15...

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Abstract

The disclosed Ga-Ge-Bi-Pb fluorescent glass material doped with rare earth is prepared by: mixing and fusing the Ga2O3, Bi2O3, GeO2, lead-contained compound and rare earth compound to obtain the fused glass liquor; clearing and pouring the liquor into the mold to obtain the glass; putting the glass rapidly into a muffle furnace with temperature as the glass transformation temperature for heat preservation; finally, cooling to room temperature. This product can be manufactured into different shape, and has wide application as the gain medium.

Description

technical field [0001] The invention relates to a luminescent glass material, in particular to a rare earth-doped gallium germanium bismuth lead luminescent glass material. [0002] The present invention also relates to a preparation method of the above-mentioned luminescent glass material. [0003] The present invention also relates to the application of the above-mentioned luminescent glass material. Background technique [0004] At present, the combination of Dense Wavelength Division Multiplexing (DWDM) technology and broadband amplifier is the development trend of optical communication. The amplification band (1530-1565nm) of the erbium-doped silica-based fiber amplifier (EDFA) currently used in wavelength division multiplexing (WDM) technology transmission systems only covers a part of the low-loss window of quartz single-mode fibers, which limits the available transmission wavelength. number of channels. Therefore, it is still the direction of people's efforts to f...

Claims

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Application Information

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IPC IPC(8): C03C3/253C03B5/235
CPCC03C3/253C03C3/23
Inventor 张勤远杨钢锋石冬梅姜中宏
Owner SOUTH CHINA UNIV OF TECH
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