Alkali metal gallate glass and preparation method thereof

A gallate and alkali metal technology, applied in the field of alkali metal gallate glass and its preparation, can solve the problems of complex production process, poor chemical stability of fluoride glass and sulfide glass, etc., and achieve the effect of good light absorption characteristics

Inactive Publication Date: 2017-09-15
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing optical glasses have their own disadvantages. Heavy metal fluoride glass is easy to devitrify when making large-sized or thick sam

Method used

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  • Alkali metal gallate glass and preparation method thereof
  • Alkali metal gallate glass and preparation method thereof
  • Alkali metal gallate glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) The molar composition of each component is: 65% Ga2O3, 23% La2O3, 12% Na2O;

[0033] 2) Weigh the total amount of 50 grams and mix it evenly in a mortar;

[0034] 3) Move the uniformly mixed powder in 2) to a platinum crucible, put it in an electric furnace and heat it to 1550℃, and keep it for 4 hours;

[0035] 4) Pour the melt into a stainless steel mold, cool it naturally, and then put it into a muffle furnace for annealing. The annealing process is controlled by a program, kept at 700 °C for 24 hours, and then cooled to room temperature;

[0036] 5) Cut, finely grind and polish the glass sample into a 20×20×2 mm sample.

[0037] 6) Using Meticon Model 2010 Prism Coupler waveguide analyzer to test its refractive index is 1.72.

Embodiment 2

[0039] The molar composition of each component is: 69% Ga 2 O 3 , 11% La 2 O 3 , 20% Na 2 O;

[0040] According to the preparation method of Example 1, the temperature in step 3) is controlled at 1600° C. and maintained for 2 hours; the annealing temperature in step 4) is 750° C. and maintained for 20 hours. The refractive index of the obtained infrared optical glass was 1.74.

Embodiment 3

[0042] The molar composition of each component is: 64% Ga 2 O 3 , 23% La 2 O 3 , 12% Na 2 O, doped with 1% Er 2 O 3 . ;

[0043] Press embodiment 1 preparation method, the refractive index of the infrared optical glass obtained is 1.73, adopt UV / VIS / NIR Lambda9 spectrophotometer to test absorption spectrum, as figure 1 shown. Under the condition of 980 nm laser pumping, the fluorescence spectrum at 1.5 μm is measured as shown in figure 2 shown.

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PUM

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Abstract

The invention discloses alkali metal gallate glass and a preparation method thereof. The glass comprises the following main components: Ga2O3, La2O3 and Na2O. The preparation method comprises the steps of (1) mixing powder of various components evenly, heating the power to 1550-1600 DEG C and keeping for 2-4h; (2) pouring a melt into a mold and naturally cooling; and (3) annealing a molded glass sample, keeping the temperature of 700-750 DEG C for 20-30h and then cooling to a room temperature. The glass has relatively good light absorption and emission characteristics and good thermal stability, and the refractive index can reach 1.7-1.8 according to different components. The alkali metal gallate glass can be applied to the optical field of optical waveguide and optical communication.

Description

technical field [0001] The invention relates to the field of glass, in particular to an alkali metal gallate glass and a preparation method thereof. Background technique [0002] In recent years, with the development of optical communication technology, the wide application of optoelectronic devices and the introduction of the concept of integrated optics, erbium-doped silica-based fiber amplifiers (EDFAs) are now used in wavelength division multiplexing (WDM) technology transmission systems. The C-band (1530-1565 nm) cannot meet the high-speed and large-capacity communication transmission requirements. Therefore, optical glass with better light absorption and emission characteristics and better thermal stability has become one of the hotspots of research. [0003] Er 3+ Although ion-doped tellurite glass has a wide amplification gain bandwidth (1530-1610 nm), its chemical stability is poor. Although fluoride glass and sulfide glass also have wide amplification gain bandw...

Claims

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Application Information

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IPC IPC(8): C03C3/12C03C4/12C03C4/08
CPCC03C3/12C03C4/08C03C4/12
Inventor 满石清张宁
Owner YUNNAN NORMAL UNIV
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