Rare earth thulium-doped aluminate fluorescent glass and preparation method thereof
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A technology of luminescent glass, aluminate, applied in the field of rare earth luminescence and light amplification materials, can solve the problems of limited development, poor chemical stability and mechanical properties
Inactive Publication Date: 2009-09-16
BEIHANG UNIV
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However, this glass has limited its further development due to i
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Embodiment 1
[0023] Weigh high-purity reagents alumina, calcium carbonate, boric acid and thulium oxide, and its composition and weight ratio are as follows:
[0024] al 2 o 3 24.4%; CaCO 3 34%;
[0025] h 3 BO 3 40.6%; Tm 2 o 3 1%;
[0026] Then take by weighing the flux that accounts for above-mentioned four kinds of high-purity reagent gross weight 1.5% weight, and flux is SrF 2 , BaF 2 , NH 4 HF 2 , SrCl 2 , BaCl 2 , NH 4 Cl, H 3 BO 3 one or more of them. Grind them in a mortar for 2-3 hours and mix well.
Embodiment 2
[0028] Weigh high-purity reagents alumina, calcium carbonate, boric acid and thulium oxide, and its composition and weight ratio are as follows:
[0029] al 2 o 3 25.3%; CaCO 3 33%;
[0030] h 3 BO 3 40.5%; Tm 2 o 3 1.2%;
[0031] Then take by weighing the flux that accounts for 2% weight of above-mentioned four kinds of high-purity reagent gross weights, and flux is SrF 2 , BaF 2 , NH 4 HF 2 , SrCl 2 , BaCl 2 , NH 4 Cl, H 3 BO 3 one or more of them. Grind them in a mortar for 2-3 hours and mix well.
Embodiment 3
[0033] Weigh high-purity reagents alumina, calcium carbonate, boric acid and thulium oxide, and its composition and weight ratio are as follows:
[0034] al 2 o 3 24.4%; CaCO 3 34%;
[0035] h 3 BO 3 40.1%; Tm 2 o 3 1.5%;
[0036] Then take by weighing the flux that accounts for 0.5% weight of above-mentioned four kinds of high-purity reagent gross weights, flux is SrF 2 , BaF 2 , NH 4 HF 2 , SrCl 2 , BaCl 2 , NH 4 Cl, H 3 BO 3 one or more of them. Grind them in a mortar for 2-3 hours and mix well.
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Abstract
The invention relates to a rare earth thulium-doped aluminate fluorescent glass, and the weight proportions of the compositions are as follows: 22% to 28% of Al2O3; 30% to 37% of CaCO3; 36% to 44% of H3BO3; and 0.5% to 1.5% of Tm2O3; the preparation method is as follows: (1) extra pure reagents alumina, calcium carbonate and boric acid are weighed, and the weight percentages are respectively as follows: 22% to 28%; 30% to 37%; 36% to 44%; 0.5% to 1.5%; thulium oxide is weighed so that the ratio between the weight of thulium oxide and the total weight of the three master batches is between 0.5% and 1.5%; fluxing agent accouting for 1% to 2% of the total weight of the four extra pure reagents is weighed, and the compositions are fully mixed; (2) the mixture is loaded in a corundum crucible and is sintered in a high temperature furnace, the atmosphere is air, the sintering temperature is 1100 to 1400 DEG C, and the sintering time is 2 to 5 hours; (3) sinter is processed in an annealing furnace at the temperature of 450 to 550 DEG C, and the processing time is 30 to 60 minutes; (4) the sinter is reduced to room temperature in air, cut into required length, washed by deionized water at the temperature of 70 to 85 DEG C, and dried at the temperature of 120 to 150 DEG C, so that the required product is obtained.
Description
technical field [0001] The invention belongs to the technical field of rare earth luminescent and light amplifying materials, and specifically relates to an aluminate luminescent glass doped with rare earth thulium and a preparation method thereof. The luminescent glass doped with rare earth thulium can be used to prepare infrared light sources and optical amplifiers. Background technique [0002] In the past two decades, rare earth erbium (Er) ions have played a very important role as an optical gain medium in lasers and optical amplifiers, because Er 3+ from the first excited state 4 I 13 / 2 transition to ground state 4 I 15 / 2 The emission wavelength is 1.54μm, which is just the minimum light absorption window of the quartz glass fiber used for optical fiber communication. Erbium-doped Fiber Amplifier EDFA (Erbium-doped Fiber Amplifier) has been widely used in the field of optical communication, but it can only use wavelength resources in the range of 1530-1625nm (tha...
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