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Bi2O3-GeO2 system laser glass doped with Er3+ and preparation method thereof

A technology of laser glass and er2o3, applied in the field of laser materials, can solve the problems of low efficiency and high threshold, achieve high efficiency, low threshold, and reduce production costs

Inactive Publication Date: 2016-07-20
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the existing Er-doped laser (glass medium) belongs to the three-level structure, its disadvantages are high threshold and low efficiency, so it is necessary to develop a new Er-doped laser

Method used

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  • Bi2O3-GeO2 system laser glass doped with Er3+ and preparation method thereof
  • Bi2O3-GeO2 system laser glass doped with Er3+ and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of 80Bi 2 o 3 -20GeO 2 -1.0Er 2 o 3 Glass:

[0037] Using Bi 2 o 3 、GeO 2 、Er 2 o 3 As the raw material, mix according to the mole ratio of 80:20:1.0, put it into the mortar and grind it for a period of time to make it fully mixed evenly, pour the evenly ground raw material into the corundum crucible, and then put the sealed corundum crucible into the high-temperature atmosphere furnace Medium heating, high temperature atmosphere furnace (under argon atmosphere, protective gas flow rate 0.6L / min) to 1150°C at a heating rate of 10°C / min, and keep at this temperature for 1.5h. The molten glass is poured into the mold preheated at 330°C for 20 minutes. After forming, the sample and the mold are placed in a high-temperature atmosphere furnace at 380°C for 1 hour for annealing, and then naturally cooled to room temperature. Glass samples of 2 cm x 1 cm were cut, ground to a thickness of 2 mm, and the surface was polished, and the glass was irradiated. ...

Embodiment 2

[0039] Preparation of 90Bi 2 o 3 -10GeO 2 -0.25Er 2 o 3 Glass

[0040] Using Bi 2 o 3 、GeO 2 、Er 2 o 3 As the raw material, mix according to the mole ratio of 90:10:0.25, put it into the mortar and grind it for a period of time to make it fully mixed evenly, pour the evenly ground raw material into the corundum crucible, and then put the sealed corundum crucible into the high-temperature atmosphere furnace Medium heating, high-temperature atmosphere furnace (under nitrogen atmosphere, protective gas flow rate 0.5L / min) is heated to 1100°C at a heating rate of 5°C / min, and kept at this temperature for 1.5h, and the molten glass in a molten state is poured into the furnace at 300°C In the mold preheated for 20 minutes, after forming, put the sample and the mold together in a high-temperature atmosphere furnace at 350 ° C for 1 hour for annealing, then naturally cool to room temperature, take out the sample cooled to room temperature from the mold, and cut it with a cutt...

Embodiment 3

[0042] Preparation of 90Bi 2 o 3 -10GeO 2 -1.2Er 2 o 3 Glass

[0043] Using Bi 2 o 3 、GeO 2 、Er 2 o 3 As the raw material, mix according to the mole ratio of 90:10:1.2, put it into the mortar and grind it for a period of time to make it fully mixed evenly, pour the evenly ground raw material into the corundum crucible, and then put the sealed corundum crucible into the high-temperature atmosphere furnace Medium heating, high temperature atmosphere furnace (under nitrogen atmosphere, protective gas flow rate 0.6L / min) to 1150°C at a heating rate of 10°C / min, and keep at this temperature for 1h. The molten glass is poured into the mold preheated at 340°C for 15 minutes. After forming, the sample and the mold are put together in a high-temperature atmosphere furnace at 350°C for 1 hour for annealing, and then naturally cooled to room temperature. The sample at room temperature was taken out from the mold, and a glass block of 2 cm × 1 cm was cut out with a cutting machi...

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Abstract

The invention provides Bi2O3-GeO2 system laser glass doped with Er3+ and a preparation method thereof. The Bi2O3-GeO2 system laser glass doped with Er3+ is mainly composed of Bi2O3, GeO2 and a compound containing Er3+, wherein by total molar percent of Bi2O3 and GeO2, the concentration of Er3+ ranges from 0.5% to 5.0%. The laser glass emits near-infrared light under excitation of a laser diode or a solid laser device with the emission wavelength being 800-1100 nm, can be applied to the fields like near-infrared laser communication, is low in threshold and high in efficiency, and has important application prospects.

Description

technical field [0001] The invention relates to the technical field of laser materials, in particular to Er-doped 3+ Bi 2 o 3 -GeO 2 The invention relates to a laser glass and a preparation method thereof. Background technique [0002] In the 1980s, British scientist Pyane and other researchers obtained an Er-doped fiber amplifier that is very useful for optical fiber communication through many exploratory experiments. The commonly used optical amplifier is Erbium-doped Fiber Amplifiers (EDFA). Since the 4f band inside Er transitions to a standard communication wavelength at about 1.54 μm, Er is used as an optically active element in optical waveguide amplifiers. The advantage of the Er-doped amplifier is that its linear gain response is not affected by temperature and polarization very much, and it has low noise. The invention of Er-doped optical amplifiers has greatly promoted the development of broadband data networks. This kind of equipment can greatly reduce the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/253C03B25/00
CPCC03B25/00C03C3/253
Inventor 俞平胜程俊华张霞
Owner YANCHENG INST OF TECH