High-doped erbium intermediate infrared tellurium germinate glass and preparation method thereof

Abstract

The invention discloses high-doped erbium intermediate infrared tellurium germinate glass. The high-doped erbium intermediate infrared tellurium germinate glass comprises the components of TeO2, GeO2,ZnCl2, BaO, a denitration catalyst waste, Na2O, and Er2O3. According to the glass prepared through a melting method, the intermediate infrared light intensity is high, the doping concentration of rare earth is high, the glass is excellent in thermal stability, and is quite promising high-optical quality glass; the wasted denitration catalyst waste is used to strengthen the hardness of the glass and improve the thermal stability of the glass, the preparation method is simple and convenient, the preparation period is short, and the glass is expected to be applied to national defence industry aswell as military and civil fields.

Description

technical field

[0001] The invention relates to a highly erbium-doped mid-infrared germanate tellurite glass and a preparation method thereof. Background technique

[0002] Rare earth-doped laser glasses and optical fibers in the 2-3μm mid-infrared band will have broad application prospects in the fields of national security and national defense construction, astrophysics detection and spectroscopy research. At present, only 3 μm laser output is obtained in fluoride glass, but due to its inherent defects, fluoride glass has poor chemical stability and mechanical strength, harsh preparation conditions, easy to be eroded by water, and poor crystallization resistance (ΔT≤85 ℃) and so on limit the increase of its laser power. Erbium ion is an important rare earth ion that can obtain laser light at 3 μm, and its luminescence at 2 μm is rarely reported. The phonon energy of tellurite glass is low (700~750cm -1 ), which is conducive to improving the probability of rare earth rad...

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