Ytterbium-doped fluophosphate laser glass and preparation method thereof

A technology of laser glass and phosphate, applied in the field of laser glass, can solve the problems of not being able to be used as a laser output medium, affecting the stability of glass components, and difficult to control the melting process of fluorine-phosphorus glass components.

Inactive Publication Date: 2011-02-16
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI +1
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Problems solved by technology

Materials with excellent spectral properties may not be able to prepare large-size and high-uniformity glass samples for tens of hours or even tens of hours, that is, they cannot be used as practical laser output media
[0004] There is very little research on laser fluorophosphorus glass in the world. The reason is that it is difficult to control the fluorophosphorus glass components suitable for long-time melting and its melting process, because the fluo

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  • Ytterbium-doped fluophosphate laser glass and preparation method thereof
  • Ytterbium-doped fluophosphate laser glass and preparation method thereof
  • Ytterbium-doped fluophosphate laser glass and preparation method thereof

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Example Embodiment

[0023] Example 1:

[0024] In the first step, according to Table 1, select 1# glass formula and calculate, weigh 3.5Kg powder and mix well.

[0025] The specific calculation method of the ingredients is as follows: according to its cationic molar composition P 5+ : 21.0mol%, Al 3+ : 10.0mol%, Mg 2+ : 15.0mol%, Ca 2+ : 9.5mol%, Sr 2+ : 8.0mol%, Ba 2+ : 4.5mol%, Li + : 27.0mol%, Na + : 4.0mol%, Yb 3+ : 1.0mol%, if you choose to introduce 21mol% P 5+ The raw material is: 3Al(PO 3 ) 3 , where 9P 5+ , 3Al 3+ ;2LiPO 3 , where 2P 5+ , 2Li + ; 2Mg(H 2 PO 4 ) 2 , where 4P 5+ , 2Mg 2+ ; 2Sr(H 2 PO 4 ) 2 , where 4P 5+ , 2Sr 2+ ;2NaH 2 PO 4 .2H 2 O, where 2P 5+ , 2Na + , the introduction amount of each cation is: 21mol%P 5+ , 3mol%Al 3+ , 2mol% Li + , 2mol% Mg 2+ , 2mol% Sr 2+, 2mol% Na + , then need to introduce 7mol% AlF 3 , 13mol% MgF 2 , 9.5mol% CaF 2 , 6.0 mol% SrF 2 , 4.5 mol% BaF 2 , 25.0mol% LiF, 2.0mol% NaF, 1.0mol% YbF 3 , then all catio...

Example Embodiment

[0029] Example 2

[0030] In the first step, according to Table 1, select 3# glass formula and calculate, weigh 3.5Kg powder and mix well. The specific calculation method is as follows: according to its cation molar composition P 5+ : 27.6mol%, Al 3+ : 18.2mol%, Mg 2+ : 6.3mol%, Ca 2+ : 12.5mol%, Sr 2+ : 10.1mol%, Ba 2+ : 11.3mol%, Li + : 6mol%, Na + : 5.0mol%, Nb 5+ : 1.0mol% Yb 3+ : 2.0mol%, if you choose to introduce 27.6mol% P 5+ The raw material is: 5Al(PO 3 ) 3 , where 15P 5+ , 6Al 3+ ; 2Ba(PO 3 ) 2 , where 4P 5+ , 2Ba 2+ ; 2.8Sr(H 2 PO 4 ) 2 , where 5.6P 5+ , 2.8Sr 2+ ; 3NaH 2 PO 4 .2H 2 O, of which 3P 5+ , 3Na + , the introduction amount of each cation is: 27.6mol%P 5+ , 5mol%Al 3+ , 2 mol% Ba 2+ , 2.8 mol% Sr 2+ , 3 mol% Na + , then need to introduce 13.2mol% AlF 3 , 6.3 mol% MgF 2 , 12.5mol% CaF 2 , 7.3 mol% SrF 2 , 9.3 mol% BaF 2 , 6.0mol% LiF, 2.0mol% NaF, 1.0mol% Nb 2 o 5 , 2.0mol% YbF 3 , then all cations satisfy the compos...

Example Embodiment

[0033] Example 3:

[0034] In the first step, according to Table 1, select 5# glass formula and calculate, weigh 3.5Kg powder and mix well. The specific calculation method is as follows: according to its cation molar composition P 5+ : 26mol%, Al 3+ : 28mol%, Mg 2+ : 5.7mol%, Ca 2+ : 12.8mol%, Sr 2+ : 11.8mol%, Ba 2+ : 10.7mol%, Li + : 6mol%, Na + : 2.0mol%, Yb 3+ : 3.0mol%, if you choose to introduce 26mol% P 5+ The raw material is 6Al(PO 3 ) 3 (18P 5+ , 6Al 3+ ); 2Ba(PO 3 ) 2 (4P 5+ , 2Ba 2+ ); 2Sr(H 2 PO 4 ) 2 (4P 5+ , 2Sr 2+ ); the introduction amount of each cation is respectively: 26mol%P 5+ , 6mol%Al 3+ , 2 mol% Ba 2+ , 2mol% Sr 2+ , then need to introduce 22mol% AlF 3 , 5.7 mol% MgF 2 , 12.8 mol% CaF 2 , 9.8 mol% SrF 2 , 8.7 mol% BaF 2 , 2.0mol% NaF, 3.0mol% YbF 3 , then all cations satisfy the composition requirements.

[0035] The second step is to melt the fluorophosphorus glass: raise the temperature of the 1 liter platinum crucible ...

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Abstract

The invention relates to ytterbium-doped fluophosphate laser glass and a preparation method thereof. The glass comprises phosphate, fluoride and little oxide, wherein cation contains the following elements in mole percentage: 21.0-35.0 mol percent of P<5+>, 10.0-28.0 mol percent of Al<3+>, 6.0-15.0 mol percent of Mg<2+>, 9.5-13.0 mol percent of Ca<2+>, 8.0-13.0 mol percent of Se<2+>, 4.5-11.3 mol percent of Ba<2+>, 0-27.0 mol percent of Li<+>, 2.0-5.0 mol percent of Na<+>, 0-1.0 mol percent of Nb<5+> and 1.0-3.0 mol percent of Yb<3+>. The glass is prepared by adopting the traditional fusion method. The fluorescence lifetime of Yb<3+> is from 1.70ms to 2.3ms in a 2mm sample, and the Abbe number is between 73.4 and 81.8. Proved by experiments, the ytterbium-doped laser glass is a practical medium material for outputting ultrahigh power and ultrashort pulse laser.

Description

technical field [0001] The invention relates to laser glass, in particular to ytterbium-doped fluorophosphate laser glass and a preparation method thereof. Background technique [0002] Although high-power laser systems worldwide, such as NIF, ICF and fast ignition projects, still use Nd-doped phosphate glass as the high-power laser gain medium, Nd-doped phosphate glass has obviously not been able to meet the requirements of high-power laser systems for higher Laser peak power and peak energy requirements. All developed countries are developing new laser gain medium materials suitable for higher power laser output, and ytterbium-doped fluorophosphorus glass is also one of the candidate materials. This is because the material dispersion of fluorophosphorus glass is very small, the nonlinear effect is low, the self-focusing damage is weak under the action of strong laser, its negative refractive index temperature coefficient makes the optical path change small, its effective ...

Claims

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Application Information

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IPC IPC(8): C03C3/247
Inventor 张丽艳张军杰胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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