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2 mu m low phosphorus content fluophosphate laser glass and preparation thereof

A technology of fluorophosphate and laser glass, which is applied in the field of 2μm low phosphorus content fluorophosphate laser glass and its preparation, which can solve the problems of rare reports of fluorophosphate glass and so on.

Inactive Publication Date: 2009-07-15
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on fluorophosphate glass that achieves 2 μm light emission at home and abroad.

Method used

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  • 2 mu m low phosphorus content fluophosphate laser glass and preparation thereof
  • 2 mu m low phosphorus content fluophosphate laser glass and preparation thereof
  • 2 mu m low phosphorus content fluophosphate laser glass and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Composition as in Table 1 1 # As shown, the specific preparation process is as follows:

[0029] According to table 1 in 1 # Calculate the mole percentage of the glass composition, calculate the corresponding weight percentage of each composition, weigh each raw material and mix evenly; put the mixture into a platinum crucible and melt it in a silicon carbide rod electric furnace at 1020 ° C, and clarify it for 10 to 15 minutes after complete melting , pour the molten glass into a preheated mold; quickly move the glass into a muffle furnace that has been heated to 420°C, keep it warm for 3 to 4 hours, then lower it to room temperature at a rate of 10°C / hour, and cool it completely Then remove the glass sample.

[0030] The test results for this glass are as follows:

[0031] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test. The differential thermal curve of the 2 μm low phosphorus...

Embodiment 2

[0035] Composition as in Table 1 2 # As shown, the specific preparation process is as follows:

[0036] According to table 1 in 2 # Calculate the mole percentage of the glass composition, calculate the corresponding weight percentage of each composition, weigh each raw material and mix evenly; put the mixture into a platinum crucible and melt it in a silicon carbide rod electric furnace at 1000 ° C, and clarify it for 10 to 15 minutes after complete melting , pour the molten glass into a preheated mold; quickly move the glass into a muffle furnace that has been heated to 430°C, keep it warm for 3 to 4 hours, then lower it to room temperature at a rate of 10°C / hour, and take it out after completely cooling Glass samples.

[0037] The test results for this glass are as follows:

[0038] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test.

[0039] The annealed sample was processed into a 10×2...

Embodiment 3

[0041] Composition as in Table 1 3 # As shown, the specific preparation process is as follows:

[0042] According to table 1 in 3 # Calculate the mole percentage of the glass composition, calculate the corresponding weight percentage of each composition, weigh each raw material and mix evenly; put the mixture into a platinum crucible and melt it in a silicon carbide rod electric furnace at 1050 ° C, and clarify for 10 to 15 minutes after complete melting , pour the molten glass into a preheated mold; quickly move the glass into a muffle furnace that has been heated to 440°C, keep it warm for 3 to 4 hours, then lower it to room temperature at a rate of 10°C / hour, and take it out after completely cooling Glass samples.

[0043] The test results for this glass are as follows:

[0044] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test.

[0045]The annealed sample was processed into a 10×20×1....

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Abstract

The invention relates to 2 mu m fluo-phosphate laser glass with a low-phosphorous content and a preparation method thereof. The glass has the composition by molar percentages as following: 3 to 6 molar percentages of Al(PO3)3, 30 to 35 molar percentages of AlF3, 9 to 12 molar percentages of MgF2, 14 to 18 molar percentages of CaF2, 5 to 8 molar percentages of SrF2, 9 to 14 molar percentages of BaF2, 8 to 11 molar percentages of NaF, 0 to 6 molar percentages of LaF3, and 4 to 10 molar percentages of RF3, wherein R is rare earth elements, such as Yb, Er, Tm and Ho. A melting method is used for preparing the fluo-phosphate glass, and the prepared glass has good physical and chemical properties, the stability parameter delta T being more than or equal to 100 DEG C. Strong 2 mu m fluorescence can be obtained by a laser diode pump with the wave length of 980 nm or 800 nm. The invention is suitable for the preparation and the application of the 2 mu m luminous specific glass and the optical-fiber material which are mixed with rare earth ions.

Description

technical field [0001] The invention relates to phosphate laser glass, in particular to a fluorophosphate laser glass with 2 μm low phosphorus content and a preparation method thereof. Background technique [0002] In recent years, rare earth-doped solid-state lasers with 2 μm output have attracted people's attention because of their wide application. Because the 2μm laser is very close to the 1.93μm absorption peak of water, the absorption and penetration depth of biological tissue is shallow, so it is an ideal medical laser; in addition, the 2μm laser has the characteristics of low atmospheric extinction ratio and safety to human eyes, and can be used in Coherent Doppler wind radar and other long-range detection systems; moreover, 2μm laser is the most suitable pumping source for obtaining 3-5μm optical parametric oscillator, which determines its military role. Therefore, no matter in military or civilian use, the development of 2μm lasers has an urgent need and great sig...

Claims

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Application Information

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IPC IPC(8): C03C3/32
Inventor 张军杰王孟衣丽霞张丽艳汪国年于春雷胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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