Erbium doped bismuth borate glass and prepaation process thereof

An erbium bismuth borate and glass technology, applied in the field of laser glass, can solve the problems of low luminous quantum efficiency and the like

Inactive Publication Date: 2007-05-30
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other types of glass, its luminous quantum efficiency is lower. So far, the highest luminous quantum efficiency of erbium-doped borate glass reported in the world is only about 7%, and its matrix glass composition is Ba - La-borate (see V.P. Gapontsev, S.M. Matitsin, A.A. Isineev, V.B. Kravchenko, Opt. and Laser Tech. 14(1982) 189.)

Method used

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  • Erbium doped bismuth borate glass and prepaation process thereof
  • Erbium doped bismuth borate glass and prepaation process thereof
  • Erbium doped bismuth borate glass and prepaation process thereof

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example 1

[0019] Example 1: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3 and Er with a purity greater than 99.99% 2 o 3 Powder, according to 0.1Er 2 o 3 : 99.9(45Bi 2 o 3 :55B 2 o 3 ) (molar ratio) ratio Accurately weigh raw materials. After the raw materials are ground and mixed evenly in an agate grinding disc, they are poured into a platinum crucible, and then placed in a temperature-controllable resistance furnace for melting at about 900°C for 10 hours. During the melting process, a stirring rod made of platinum was used to continuously stir the melt at a rate of 30 revolutions per minute. Then pour the molten liquid into a brass mold of a specific shape that has been preheated to 400°C, put it in an annealing furnace and keep it warm for 3 hours, and then anneal the glass sample at a cooling rate of about 35°C per hour. After the obtained glass sample was polished, the measured stimulated emission cross section was about 0.94×10 -20 cm 2 , the lum...

example 2

[0020] Example 2: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3 and Er with a purity greater than 99.99% 2 o 3 Powder, according to 0.5Er 2 o 3 : 99.5(45Bi 2 o 3 :55B 2 o 3 ) (molar ratio) ratio Accurately weigh raw materials. After the raw materials are ground and mixed evenly in an agate grinding disc, they are poured into a platinum crucible, and then placed in a temperature-controllable resistance furnace for melting at about 900°C for 10 hours. During the melting process, a stirring rod made of platinum was used to continuously stir the melt at a rate of 30 revolutions per minute. Then pour the molten liquid into a brass mold of a specific shape that has been preheated to 400°C, put it in an annealing furnace and keep it warm for 3 hours, and then anneal the glass sample at a cooling rate of about 35°C per hour. After the obtained glass sample is polished, the measured stimulated emission cross section is about 0.71×10 -20 cm 2 , the lumin...

example 3

[0021] Example 3: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3and Er with a purity greater than 99.99% 2 o 3 Powder, according to 0.1Er 2 o 3 : 99.9(25Bi 2 o 3 : 75B 2 o 3 ) (molar ratio) ratio Accurately weigh raw materials. The raw materials are ground and mixed evenly in an agate grinding disc, poured into a platinum crucible, and then placed in a temperature-controllable resistance furnace for melting at about 950°C for 13 hours. During the melting process, a stirring rod made of platinum was used to continuously stir the melt at a rate of 30 revolutions per minute. Then pour the molten liquid into a brass mold of a specific shape that has been preheated to 450°C, put it in an annealing furnace and keep it warm for 4 hours, and then anneal the glass sample at a cooling rate of about 40°C per hour. After the obtained glass sample was polished, the measured stimulated emission cross section was about 0.72×10 -20 cm 2 , the luminous quantum e...

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Abstract

The present invention relates to an aerbium-doped bismuth-borate glass and its preparation method, belonging to the field of laser glass. Said invention provides an erbium-doped bismuth borate glass which has high luminous quantum efficiency at 1.5 micrometer wavelength place, large stimulated emission section and wide fluorescence band width, and it is formed from B2O3, Bi2O3 and luminous ion oxide Er2O3. Said invented erbium-doped bismuth-borate glass can meet the requirement for any size, and is suitable for using in laser and can be made into optical fibre used in optical fibre laser and amplifier.

Description

technical field [0001] The invention relates to the field of laser glass, in particular to an erbium-doped bismuth borate glass and its preparation. Background technique [0002] Erbium ions have abundant energy levels and can produce optical transitions of various wavelengths, but their most important emission wavelength is located at 1.5-1.6 μm in the near-infrared region. Because the laser in this band is safe for human eyes and is in the optical communication window, Erbium-doped solid-state lasers are widely used in laser ranging, remote sensing and other fields. Erbium-doped fiber amplifiers made of Erbium-doped glass drawn into optical fibers are The key device of high-density wavelength division multiplexing optical communication system plays an irreplaceable role in improving the code rate of information transmission. Erbium-doped laser glasses that have been used so far are mainly silicate, borate, phosphate and fluoride glasses. Among them, borate glass has low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/15C03C4/00C03B19/00H01S3/17G02F1/39C03C13/04
CPCC03C4/0071C03C13/048
Inventor 陈雨金黄艺东黄妙良罗遵度
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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