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Neodymium-doped fluorophosphate glass and preparation method thereof

A neodymium fluorophosphate and phosphate technology, which is used in glass manufacturing equipment, glass furnace equipment, glass molding and other directions, can solve the problems of easy destruction of glass, difficult preparation, lower glass transition temperature and thermal stability, etc. The effect of excellent crystal properties and good viscosity characteristics

Active Publication Date: 2016-05-25
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

The presence of alkali metal fluorides will reduce the transition temperature and thermal stability of the glass, which not only causes the glass to be easily damaged under high power conditions, but also makes the glass face great difficulties in the preparation of high light average and large size

Method used

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  • Neodymium-doped fluorophosphate glass and preparation method thereof
  • Neodymium-doped fluorophosphate glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In the first step, select the 1# glass formula according to Table 1, and use the following mole fractions of raw materials to weigh 8kg of powder according to the mole percent composition of cations: 1Al(PO 3 ) 3 ,1Ba(PO 3 ) 3 ,3.05Sr(H 2 PO 4 ) 2 , 27.6AlF 3 ,7.8MgF 2 , 19.1CaF 2 , 16.05SrF 2 , 8.5BaF 2 , 3.5YF 3 , 0.2NdF 3 , fully mix the ingredients evenly.

[0021] In the second step, the batch material is added into a platinum crucible for clinker melting, and the melting temperature is 1050°C. The melted glass liquid is poured into a sealed large-size platinum crucible, and the glass liquid surface is protected by nitrogen gas. After the glass liquid is clarified for 60 minutes, cool down to 730°C and stir for 6 hours at a stirring speed of 80 rpm; then cool down to 680°C at a uniform speed and keep warm for 30 minutes, while the blade speed drops to 20 rpm, and then preheat to 350 ℃ cast iron mould, leakage molding;

[0022] The third step is to pu...

Embodiment 2

[0024] In the first step, select the 3# glass formula according to Table 1, and use the following mole fractions of raw materials to weigh 8kg of powder according to the cation mole percentage composition: 1Al(PO 3 ) 3 ,1Ba(PO 3 ) 3 ,3.05Sr(H 2 PO 4 ) 2 , 27.5AlF 3 ,7.8MgF 2 , 19.0CaF 2 , 15.95SrF 2 , 8.5BaF 2 , 3.5YF 3 , 0.8NdF 3 , fully mix the ingredients evenly.

[0025] In the second step, the batch material is added into a platinum crucible for clinker melting, and the melting temperature is 1050°C. The melted glass liquid is poured into a sealed large-size platinum crucible, and the glass liquid surface is protected by nitrogen gas. After the glass liquid is clarified for 60 minutes, cool down to 730°C and stir for 6 hours at a stirring speed of 80 rpm; then cool down to 680°C at a uniform speed and keep warm for 30 minutes, while the blade speed drops to 20 rpm, and then preheat to 350 ℃ cast iron mould, leakage molding;

[0026] The third step is to put...

Embodiment 3

[0028] In the first step, select the 5# glass formula according to Table 1, and use the following mole fractions of raw materials to weigh 8kg of powder according to the cation mole percentage composition: 1Al(PO 3 ) 3 ,1Ba(PO 3 ) 3 ,3Sr(H 2 PO 4 ) 2 , 27.2AlF 3 ,7.7MgF 2 , 18.8CaF 2 , 15.8SrF 2 , 8.4BaF 2 , 3.4YF 3 , 1.6NdF 3 , fully mix the ingredients evenly.

[0029] In the second step, the batch material is added into a platinum crucible for clinker melting, and the melting temperature is 1050°C. The melted glass liquid is poured into a sealed large-size platinum crucible, and the glass liquid surface is protected by nitrogen gas. After the glass liquid is clarified for 60 minutes, cool down to 730°C and stir for 6 hours at a stirring speed of 80 rpm; then cool down to 680°C at a uniform speed and keep warm for 30 minutes, while the blade speed drops to 20 rpm, and then preheat to 350 ℃ cast iron mould, leakage molding;

[0030] The third step is to put the...

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Abstract

The invention relates to neodymium-doped fluorophosphate laser glass and a preparation method thereof. The glass mainly comprises low-content phosphate and high-content divalent and trivalent metal fluoride. The positive ions of the glass include, by mole percentage, 12.0-12.1% of P<5+>, 28.2-28.6% of Al<3+>, 7.7-7.8% of Mg<2+>, 18.8-19.1% of Ca<2+>, 18.8-19.1% of Sr<2+>, 9.4-9.5% of Ba<2+>, 3.4-3.5% of Y<3+>, 0.2-1.6% of Nd<3+> and 82.49-82.59% of F<-> / (F<->+O<2->). Compared with existing neodymium-doped fluorophosphate laser glass, the neodymium-doped fluorophosphate glass is excellent in glass forming performance, long in fluorescence lifetime, low in nonlinear coefficient, free of alkali and applicable to solid-state laser amplification.

Description

technical field [0001] The invention relates to laser glass, especially a neodymium-doped fluorophosphate glass and a preparation method thereof. The neodymium-doped fluorophosphate glass has the characteristics of excellent glass-forming performance, high fluorescence, low service life, nonlinear coefficient and no alkali, and is suitable for Amplified by solid-state lasers. Background technique [0002] Neodymium-doped phosphate glass is currently the only widely used working material for large-scale high-energy laser fusion systems in the world. Its main function is to provide sufficient energy storage and gain for laser amplification of laser devices. where Nd 3+ The ion fluorescence lifetime is one of the important gain performance parameters, while the nonlinear refractive index n 2 It is also one of the important output performance parameters. Compared with neodymium-doped phosphate glass, neodymium-doped fluorophosphate glass has the characteristics of low refract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/12C03C3/247C03B5/16C03B5/225C03B19/02C03B25/00
CPCC03B5/16C03B5/225C03B19/02C03B25/00C03B2201/82C03C3/247C03C4/12
Inventor 张丽艳薛天峰胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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