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2ª–m band light-emitting oxyhalide tellurite glasses

An oxyhalotellurite and glass technology, applied in the field of glass, can solve the problems of poor chemical stability and mechanical strength preparation conditions, and achieve the effects of low cost, good glass-forming performance and water resistance, and less equipment

Inactive Publication Date: 2008-07-23
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

In fact, due to the poor chemical stability and mechanical strength and harsh preparation conditions that the fluoride glass system itself has been unable to overcome, it is necessary to ensure the optical properties of fluoride glass and improve its thermal, mechanical and chemical stability. of considerable difficulty

Method used

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  • 2ª–m band light-emitting oxyhalide tellurite glasses

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with embodiment.

[0023] The following table enumerates the composition formula of 7 specific embodiments of the glass of the present invention and the thermal characteristic temperature of the glass. These embodiment glasses are all melted by common melting method, common muffle furnace and common water removal process. The thermal characteristic temperature of the glass obtained through testing is also listed in the table and the thermal characteristic temperature of the obtained glass. Where Tg is the glass transition temperature, Tx is the crystallization initial temperature, ΔT=Tx-Tg. But the present invention is not limited only to the glass composition formulations in the table below.

[0024] Case 1

Case 2

Case 3

Case 4

Case 5

Case 6

Case 7

Glass

glass

Group

Minute

TeO 2

40

55

60

65

70

8...

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Abstract

The invention relates to a piece of luminous oxyhalide tellurate glass with 2 Mum wave band, the glass compositions and mole percentages are as follows: TeO2: 40-85, PbO: 0-15; PbF2 plus ZnF2: 5-30; ZnO: 0-15; GeO2: 0-10; Nb2O5: 0-10; WO3: 0-10; Li2O plus Na2O plus K2O: 3-10; Tm2O3 plus Ho2O3 plus Er2O3 plus Yb2O3: 2-7, wherein, at least one of the Tm2O3 and the Ho2O3 is not equal to zero. The glass is prepared through a common melting method. The oxyhalide tellurate glass of the invention has the advantages of high infrared transmittance, transparence, no crystallization, no bubbles and stripes, excellent pinhole test, high luminous efficiency at the 2 Mum wave band, etc. The preparation technique is simple, can be operated easily and has lower cost. The materials of the invention are applicable to infrared laser optical lenses at the 2 Mum wave band or infrared special fiber matrix materials at the 2 Mum wave band.

Description

technical field [0001] The invention relates to glass, in particular to an oxyhalogen tellurate glass emitting light in a 2 μm wave band. The oxyhalogen tellurite glass is characterized by good physical and chemical stability and low phonon energy, and is suitable for making optical lenses or optical fiber matrix materials that emit light in the 2 μm mid-infrared band. Background technique [0002] 2μm laser has important application value in laser ranging, wind radar, laser medical treatment and mid-infrared pumping source. At present, the materials that obtain 2μm laser output are mainly holmium-doped crystals, such as: YLF, YAG, etc., and the maximum power can reach hundreds of watts. However, due to the low laser damage threshold of nonlinear infrared crystals in the mid-infrared region, extrinsic defects can easily cause light absorption and light scattering, resulting in low transmittance in the near and mid-infrared regions; Crystals are not easy to prepare; at the ...

Claims

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Application Information

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IPC IPC(8): C03C3/253C03C3/23C03C4/12
Inventor 汪国年胡丽丽高国军范慧艳张军杰
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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