Intermediate infrared anhydrous fluorine tellurate laser glass and preparation method thereof

Abstract

The invention relates to intermediate infrared anhydrous fluorine tellurate laser glass and a preparation method thereof. The intermediate infrared anhydrous fluorine tellurate laser glass is prepared from 50-85 mol percent of TeO2, 5-45 mol percent of ZnF2 or BaF2, 0-20 mol percent of ZnO, 0-20 mol percent of sodium ion compound or potassium ion compound and 0.1-2 mass percent of erbium ion compound. The invention provides the intermediate infrared anhydrous fluorine tellurate laser glass which can generate strong intermediate infrared luminescence and is expected to be applied to medicine, bioindustry and economic construction, as well as a preparation method of the intermediate infrared anhydrous fluorine tellurate laser glass.

Description

technical field [0001] The invention belongs to the field of optics, and relates to a glass doped with rare earth ions and a preparation method thereof, in particular to a mid-infrared anhydrous fluorine tellurate laser glass and a preparation method thereof. Background technique [0002] At present, high-power fiber lasers in the mid-infrared band near 2.7 μm have important applications in military affairs, medical diagnosis, and atmospheric detection. Er 3+ The research is currently the most popular, in Er 3+ Doped ZBLAN-based optical fibers currently have an output power of 24W, which is currently the fiber laser with the strongest output power in the mid-infrared. Er 3+ The luminescence near 3 µm is due to the 4 I 11 / 2 → 4 I 13 / 2 produced by the transition, luminescence at 2.7 μm. Er 3+ Because of the large absorption near 800nm ​​and 989nm, the pump source is simple and easy to obtain, so it has been developed rapidly. Er 3+ Fiber lasers near 3 microns are ma...

AI Technical Summary

Problems solved by technology

And there are a series of problems, such as complex manufacturing process, unstable physical and chemical properties, brittle, not easy to fiber optic, etc., the most important thing is not conducive to industrial production

At the same time, some people have used oxide glass to emit light at and around 3 μm, but they have not been able to manufacture optical fibers. The main problem is that OH ions absorb near 3 μm, which is not conducive to erbium ions emitting light in the mid-infrared, and oxide glass has already The doping concentration of erbium in some substrates cannot be very high due to crystallization, so it is difficult to generate high-power fiber laser

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