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Erbium-doped lanthanum-titanium near-infrared fluorescent glass and preparation method thereof

A fluorescent glass and near-infrared technology, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve problems such as devitrification, damage to crystallization, and affect the optical properties of glass, and achieve a large width and high infrared light intensity. Effect

Active Publication Date: 2018-03-06
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on TiO 2 and La 2 o 3 As far as these two components are concerned, the components are simple, and at the same time they do not belong to the glass former, which leads to the orderly migration of atoms in the melt during the cooling process, which is induced by the wall of the container, and the supercooling degree is destroyed. Crystal devitrification, affecting the optical properties of the glass
In this case, it is more difficult to prepare this kind of glass by traditional methods such as crucible melting and casting.

Method used

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  • Erbium-doped lanthanum-titanium near-infrared fluorescent glass and preparation method thereof
  • Erbium-doped lanthanum-titanium near-infrared fluorescent glass and preparation method thereof
  • Erbium-doped lanthanum-titanium near-infrared fluorescent glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First, according to (1-α-β)La 2 o 3 -αTiO 2 -βEr 2 o 3 (80%2 ), 15.0g high-purity lanthanum oxide (La 2 o 3 ), and the weighed TiO 2 , La 2 o 3 Put the raw materials into an agate ball mill jar, add 60g of agate balls and 12ml of alcohol, and mill on a planetary ball mill for 10 hours. Then, put the ball-milled powder into an oven at 80°C for drying, and pass through a 200-mesh sieve. Then put the powder into an alumina crucible, put it into a muffle furnace together with the crucible, raise the temperature to 1200°C at a rate of 10°C / min, and keep it at 1200°C for 10h. After natural cooling, take out the powder. Furthermore, the calcined powder is put into a mold and pressed into a cylindrical block on a powder press. Finally, after it is divided into small pieces, it is put into an air-suspension furnace body for melting and sintering, and after cooling, the novel lanthanum-titanium series near-infrared fluorescent glass doped with erbium is obtained. The g...

Embodiment 2

[0043] First, according to (1-α-β)La 2 o 3 -αTiO 2 -βEr 2 o 3 (80%2 ), 14.7g high-purity lanthanum oxide (La 2 o 3 ), 0.3g high-purity erbium oxide (Er 2 o 3 ), and the weighed TiO 2 , La 2 o 3 and Er 2 o 3 Put the raw materials into an agate ball mill jar, add 60g of agate balls and 12ml of alcohol, and mill on a planetary ball mill for 10 hours. Then, put the ball-milled powder into an oven at 80°C for drying, and pass through a 200-mesh sieve. Then put the powder into an alumina crucible, put it into a muffle furnace together with the crucible, raise the temperature to 1200°C at a rate of 10°C / min, and keep it at 1200°C for 10h. After natural cooling, take out the powder. Furthermore, the calcined powder is put into a mold and pressed into a cylindrical block on a powder press. Finally, after it is divided into small pieces, it is put into an air-suspension furnace body for melting and sintering, and after cooling, the novel lanthanum-titanium series near-infr...

Embodiment 3

[0045] First, according to (1-α-β)La 2 o 3 -αTiO 2 -βEr 2 o 3 (80%2 ), 14.2g high-purity lanthanum oxide (La 2 o 3 ), 0.8g high-purity erbium oxide (Er 2 o 3 ), and the weighed TiO 2 , La 2 o 3 and Er 2 o 3 Put the raw materials into an agate ball mill jar, add 60g of agate balls and 12ml of alcohol, and mill on a planetary ball mill for 10 hours. Then, put the ball-milled powder into an oven at 80°C for drying, and pass through a 200-mesh sieve. Then put the powder into an alumina crucible, put it into a muffle furnace together with the crucible, raise the temperature to 1200°C at a rate of 10°C / min, and keep it at 1200°C for 10h. After natural cooling, take out the powder. Furthermore, the calcined powder is put into a mold and pressed into a cylindrical block on a powder press. Finally, after it is divided into small pieces, it is put into an air-suspension furnace body for melting and sintering, and after cooling, the novel lanthanum-titanium series near-infr...

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Abstract

The invention relates to Er-doped La-Ti near infrared fluorescent glass and a preparation method thereof. The chemical composition of the Er-doped La-Ti near infrared fluorescent glass is (1-alpha-beta)La2O3*alphaTiO2*betaErO3, wherein alpha is larger than 80% and smaller than or equal to 85%, beta is larger than 0 and smaller than or equal to 2.1%, and the sum of alpha and beta is smaller than 1. When the prepared novel fluorescent material is in the wavelength range of 1,400-1,650 nm, the emitted infrared light has high intensity, the FWHM (full width at half maximum) is large and can exceed 100 nm, the maximum Er2O3 concentration is high and reaches 2.1%, and the fluorescent material is expected to be applied to optical fiber amplifiers.

Description

technical field [0001] The invention relates to a novel erbium-doped lanthanum-titanium near-infrared fluorescent glass, which belongs to the field of near-infrared fluorescent materials. Background technique [0002] Near-infrared light is an electromagnetic wave with a wavelength range of 780-2526nm. Materials that can immediately emit near-infrared light of the corresponding band after being excited by light of a specific wavelength are called near-infrared fluorescent materials. With the development of the Internet, people's requirements for network transmission speed are increasing. Therefore, reducing signal loss in optical fibers and expanding the frequency range of optical fiber transmission signals has become a development field with great market value. At present, the widely used silica optical fiber has a small signal loss in the 1000-1700nm band, and the loss is the smallest at 1550nm. Therefore, in the near-infrared field, people pay great attention to the corr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/12C03C4/12C03B5/16C03B5/235
CPCC03B5/16C03B5/235C03C3/127C03C4/12
Inventor 余建定汪超越刘岩李勤王伟张明辉谷彦静郑效杰段蛟李未
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI