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Near-infrared broadband luminescence erbium and thulium-co-doped bismuthate laser glass and preparation method thereof

A laser glass and near-infrared technology, applied in the field of laser glass, to achieve the effect of reducing the probability of non-radiative transition, uniform physical and chemical properties, and stable thermodynamic performance

Active Publication Date: 2014-11-26
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

However, there are few reports on broadband luminescence of bismuthate glasses at home and abroad.

Method used

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  • Near-infrared broadband luminescence erbium and thulium-co-doped bismuthate laser glass and preparation method thereof
  • Near-infrared broadband luminescence erbium and thulium-co-doped bismuthate laser glass and preparation method thereof
  • Near-infrared broadband luminescence erbium and thulium-co-doped bismuthate laser glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Composition is as shown in 1# in table 1, and concrete preparation process is as follows:

[0030] According to the molar percentage of the 1# glass composition in Table 1, calculate and weigh the weight of each composition, weigh each raw material and mix them evenly; put the mixture into a corundum crucible and place it on a silicon carbide rod at 1050°C~1100°C Melt in an electric furnace, clarify for 15 minutes after complete melting, and pour the molten glass on the preheated mold; after a little cooling, quickly move it into a muffle furnace with a temperature of 400 ° C, keep it warm for 3 hours, and then use a temperature of 10 ° C / hour The rate was lowered to room temperature, and the glass sample was taken out after complete cooling.

[0031] The test results for this glass are as follows:

[0032] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test. The differential thermal...

Embodiment 2

[0035] Composition is as shown in 2# in table 1, and concrete preparation process is as follows:

[0036] According to the molar percentage of the 2# glass composition in Table 1, calculate the weight of the corresponding components, weigh the raw materials and mix them evenly; put the mixture into a corundum crucible and melt it in a silicon carbide rod electric furnace at 1050 ° C ~ 1100 ° C, Clarify for 15 minutes after complete melting, and pour the molten glass on the preheated mold; after a little cooling, quickly move it into a muffle furnace with a temperature of 400°C, keep it warm for 3 hours, and then lower it to room temperature at a rate of 10°C / hour, completely The glass samples were removed after cooling.

[0037] The test results for this glass are as follows:

[0038] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test.

[0039] The annealed sample was processed into a 10×20×...

Embodiment 3

[0041] Composition is as shown in 3# in table 1, and concrete preparation process is as follows:

[0042] According to the molar percentage of the 3# glass composition in Table 1, calculate the weight of the corresponding components, weigh the raw materials and mix them evenly; put the mixture into a corundum crucible and melt it in a silicon carbide rod electric furnace at 1050 ° C ~ 1100 ° C, Clarify for 15 minutes after complete melting, and pour the molten glass on the preheated mold; after a little cooling, quickly move it into a muffle furnace with a temperature of 400°C, keep it warm for 3 hours, and then lower it to room temperature at a rate of 10°C / hour, completely The glass samples were removed after cooling.

[0043] The test results for this glass are as follows:

[0044] Take a small sample after annealing, grind it into a fine powder with an agate mortar, and conduct a differential thermal analysis test.

[0045] The annealed sample was processed into a 10×20×...

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Abstract

The invention relates to near-infrared broadband luminescence erbium and thulium-co-doped bismuthate laser glass and a preparation method thereof. The glass comprises the following components in molar percentage: 53.6-59.8 mol% of Bi2O3, 10-20 mol% of B2O3, 10-20 mol% of SiO2, 10-20 mol% of Ga2O3, 0.8-1.2 mol% of Tm2O3 and 0.2-0.6 mol% of Er2O3. The glass which is prepared by utilizing a melting-cooling method is of glassy yellow and has uniform physical and chemical properties. The glass disclosed by the invention has the advantages of stable thermodynamic property and strong anti-devitrification ability. The Raman vibration spectrum of the glass shows that the strongest vibration peak is in the vicinity of 188-412cm-1. The probability of nonradiative transition of the energy level of rare earth ions is greatly reduced. The radiation bandwidth with the width of 165nm is obtained under pumping of a laser diode with 800nm wavelength and covered on an S plus C plus L wave band. The glass disclosed by the invention is suitable for preparation and application of near-infrared broadband luminescence rare earth ion-doped optical fiber materials.

Description

technical field [0001] The invention relates to laser glass, in particular to a near-infrared broadband luminescent erbium-thulium co-doped bismuthate laser glass and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of optical communication technology and information channel technology, the channel bandwidth of erbium ion-doped silicate glass fiber amplifier (EDFA), which is a key device of wavelength division multiplexing (WDM), has increasingly shown limitations. Expanding the spectrum range of the existing EDFA and selecting a suitable luminescent host material has become an important direction for the development of rare earth fluorescence. The working wavelength range of the existing EDFA is 1530~1600 nm (C+L band). The wavelength range can be broadened to 1440-1600nm (S+C+L band) by introducing thulium ions into erbium monodoped glass. The principle is attributed to the Tm of the thulium ion 3+ : 3 h 4 → 3 f ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/068C03C4/12
Inventor 赵国营胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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