Method for controllably precipitating crystal phase of transparent glass ceramics for ultra-wide-band fiber amplifiers

An optical fiber amplifier and glass-ceramic technology, which is applied in the field of crystal phase controllable precipitation of transparent glass-ceramic, can solve problems such as uncontrollable crystal phase precipitation, and achieve the effect of optimizing the preparation process and widening the near-infrared broadband light emission range.

Active Publication Date: 2014-01-29
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem of uncontrollable crystal phase precipitation in the preparation process of existing transparent glass-ceramics, the present invention proposes a method for crystal ph

Method used

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  • Method for controllably precipitating crystal phase of transparent glass ceramics for ultra-wide-band fiber amplifiers
  • Method for controllably precipitating crystal phase of transparent glass ceramics for ultra-wide-band fiber amplifiers
  • Method for controllably precipitating crystal phase of transparent glass ceramics for ultra-wide-band fiber amplifiers

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1:

[0022] Weigh 41.9 g of SiO 2 , 11.7g of Al 2 O 3 , 34 g of ZnO, 10.7 g of K 2 O, 0.01 g of Cr 2 O 3 , After mixing the above components uniformly, after melting at 1350 ℃, keep the temperature for 10 minutes, pour the glass melt into the preheated mold, transfer it to the muffle furnace at 500 ℃ for 1 hour, then close the horse Furnace, let it naturally cool down to room temperature to obtain basic glass.

[0023] The base glass is heat-treated at 650 ℃ for 4 hours, and then lowered to room temperature to obtain β-Zn precipitation 2 SiO 4 Nanocrystalline glass-ceramics.

[0024] The XRD pattern of this transparent glass-ceramic is shown in figure 1 , See the fluorescence spectrum figure 2 . by figure 1 Available, the crystallite phase in the transparent glass-ceramic is β-Zn 2 SiO 4 ;by figure 2 It can be obtained that the emission peak of the glass-ceramics is located at 1335 nm and the FWHM is 240 nm.

Example Embodiment

[0025] Example 2:

[0026] Weigh 41.9 g of SiO 2 , 11.7g of Al 2 O 3 , 34 g of ZnO, 1.5 g of Li 2 O, 10.7g of K 2 O, 1.5 g of NiO, after mixing the above components uniformly, melting at 1500 ℃, holding for 30 minutes, pour the glass melt into a preheated mold, and transfer to a muffle furnace at a temperature of 500 ℃ for insulation After 1 hour, turn off the muffle furnace and let it cool to room temperature naturally to obtain the basic glass.

[0027] The base glass is heat-treated at 850 ℃ for 1 hour, and then lowered to room temperature to obtain β-Zn precipitation 2 SiO 4 And Zn 1.7 SiO 4 Nanocrystalline glass-ceramics.

[0028] The XRD pattern of this transparent glass-ceramic is shown in figure 1 , See the fluorescence spectrum figure 2 . by figure 1 Available, the crystallite phase in the transparent glass-ceramic is β-Zn 2 SiO 4 , Zn 1.7 SiO 4 ;by figure 2 It can be obtained that the emission peaks of the glass-ceramics are located at 1335 nm (full width at half maxim...

Example Embodiment

[0029] Example 3:

[0030] Weigh 41.9 g of SiO 2 , 11.7g of Al 2 O 3 , 34 g of ZnO, 2.5 g of Li 2 O, 10.7 g of K 2 O, 0.5 g of CoO, after mixing the above components uniformly, melting at 1450 ℃, holding for 15 minutes, pour the glass melt into the preheated mold, and transfer to the muffle furnace at 500 ℃ for heat preservation After 1 hour, turn off the muffle furnace and let it cool to room temperature naturally to obtain the basic glass.

[0031] The base glass is heat-treated at 700 ℃ for 2 hours, and then lowered to room temperature to obtain the precipitated Zn 1.7 SiO 4 Nanocrystalline glass-ceramics.

[0032] The XRD pattern of this transparent glass-ceramic is shown in figure 1 , See the fluorescence spectrum figure 2 . by figure 1 Available, the crystallite phase in the transparent glass-ceramic is Zn 1.7 SiO 4 ;by figure 2 It can be obtained that the emission peak of the glass-ceramics is located at 1306 nm and the FWHM is 235 nm.

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Abstract

The invention discloses a method for controllably precipitating the crystal phase of transparent glass ceramics for ultra-wide-band fiber amplifiers. The base glass comprises fixed components and a variable component, wherein the fixed components comprise 41.9 parts of SiO2, 11.7 parts of Al2O3, 4 parts of ZnO3, 10.7 parts of K2O and 0.01-1.5 parts of transition metal ion oxides; the variable component comprises Li2O with the part greater than or equal to 0 and less than or equal to 10. Through adjusting the content of the variable component LiO2, one or more than one of beta-Zn2SiO4, Zn1.7SiO4, Li1.14Zn1.43SiO4 and Li2ZnSiO4 microcrystals can be precipitated in the base glass. The glass ceramics prepared by adopting the method disclosed by the invention have ultra-wide-band fluorescence luminescent property (1000-1600nm); the emission peak full width at half maximum is 200-400nm; the glass-ceramics can be applied to the ultra-wide-band fiber amplifiers.

Description

technical field [0001] The invention relates to a method for controllable precipitation of crystal phases of transparent glass-ceramics, in particular to a method for controllable precipitation of crystal phases of transparent glass-ceramics for ultra-broadband optical fiber amplifiers. technical background [0002] Glass-ceramic refers to a class of composite materials in which nanocrystals are distributed in a continuous glass phase. The preparation method is usually to first prepare a matrix glass with designed components, and then heat-treat the prepared matrix glass at a certain temperature to precipitate nanocrystals in situ, that is, to obtain a glass-ceramic. Glass-ceramics also has the characteristics of stable physical and chemical properties of glass, high mechanical strength, and easy processing, and has the characteristics of low phonon energy in crystals, which can reduce the non-radiative transition probability of doped luminescent ions and improve its quantum...

Claims

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Application Information

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IPC IPC(8): C03C10/04C03B32/02
CPCY02P40/57
Inventor 徐时清杨清华邓德刚王焕平华有杰赵士龙张军杰王乐健
Owner CHINA JILIANG UNIV
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