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Neodymium doped borate glass with high luminous quantum efficiency and its preparing method

A technology of luminous quantum and neodymium borate, which is applied to furnace types, furnaces, boilers, etc., and can solve problems such as low luminous quantum efficiency

Inactive Publication Date: 2007-08-15
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 neodymium-doped borate glass reported internationally is only about 20%, and its matrix glass composition is Na 2 O-Al 2 o 3 -B 2 o 3 (See V. Mehta, G. Aka, A.L. Dawar, and A. Mansingh, Opt. Mater., 12[1] 53-63 (1999)

Method used

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  • Neodymium doped borate glass with high luminous quantum efficiency and its preparing method
  • Neodymium doped borate glass with high luminous quantum efficiency and its preparing method
  • Neodymium doped borate glass with high luminous quantum efficiency and its preparing method

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example 1

[0017] Example 1: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3 and Al 2 o 3 and Nd with a purity greater than 99.99% 2 o 3 Powder, according to 0.5Nd 2 o 3 : 99.5(40Bi 2 o 3 : 15Al 2 o 3 :45B 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 1000°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 500°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 45°C per hour. After the obtained glass sample was polished, the measured stimulated emission cross section was abo...

example 2

[0018] Example 2: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3 and Al 2 o 3 and Nd with a purity greater than 99.99% 2 o 3 Powder, according to 1Nd 2 o 3 :99(40Bi 2 o 3 : 10Al 2 o 3 :50B 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 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 45°C per hour. After the obtained glass sample was polished, the measured stimulated emission cross section was about 3.9...

example 3

[0019] Example 3: the purity after drying is analytically pure H 3 BO 3 、 Bi 2 o 3 and MgCO3 and Nd with a purity greater than 99.99% 2 o 3 Powder, according to 0.5Nd 2 o 3 : 99.5(40Bi 2 o 3 :5MgO: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 950°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 40 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 3 hours, and then anneal the glass sample at a cooling rate of about 30°C per hour. After the obtained glass sample is polished, the measured stimulated emission cross section is about 4.4×10 -20 cm ...

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Abstract

The present invention relates to the field of laser glass, and provides a kind Nd doped borate glass with high luminous quantum efficiency. The Nd doped borate glass consists of B2O3, Bi2O3, alkali and alkali earth oxide RmOn and light-emitting ionic oxide Nd2O3. The Nd doped borate glass may meet different size requirement and is suitable for use in laser and fiber communication.

Description

technical field [0001] The invention relates to the field of laser glass, in particular to a neodymium-doped borate glass and its preparation. Background technique [0002] Compared with laser crystals, laser glass has the advantages of low cost, simple preparation, changeable shape and size, easy structure adjustment, isotropy, and uniform properties in large volumes. At present, laser glass plays an important role in laser emission, amplification, and optical information storage and transmission. It also has broad application prospects in the miniaturization and integration of photonic devices as glass optical fibers, optical waveguides, and thin film materials. Laser glasses that have been used so far are mainly silicate, borate, phosphate and fluoride glasses doped with rare earth ions. Among them, borate glass has low melting temperature (compared to silicate glass), less moisture content (compared to phosphate glass), low toxicity (compared to fluoride glass), stable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/15C03C4/00C03B5/06
CPCC03C3/15C03C4/0071
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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