Fluoroaluminate laser glass and preparation method thereof

A technology of laser glass and fluoroaluminate, applied in glass manufacturing equipment, glass forming, manufacturing tools, etc., to achieve the effect of low production cost and simple preparation process

Inactive Publication Date: 2004-11-03
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, for most glass systems, the high doping of rare earth ions will inevitably cause the cluster effect and concentration quenching effect in the glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2、3

[0031] The preparation method of embodiment 1,2,3 is as follows:

[0032] The first step is to select the glass formula, and weigh the high-purity raw materials according to the first, second, and third examples in Table 1;

[0033] The second step is to melt the fluoroaluminate glass. The melting process of the first, second and third cases of glass is the same, and the specific preparation process is as follows: high-purity AlF 3 , MgF 2 , CaF 2 , SrF 2 , BaF 2 , YF 3 , ErF 3 and YbF 3 Powdered raw materials and ammonium hydrogen fluoride (NH 4 F · HF) mixed evenly, placed in a platinum crucible, and melted in a silicon carbon rod electric furnace. During the glass melting process, an inert gas Ar was used for atmosphere protection. The melting temperature is 900-1100°C. In order to prevent the volatilization loss of raw materials during the high-temperature melting process of glass, a platinum cover is placed on the platinum crucible during the glass melting proces...

Embodiment 4、5、6、7

[0035] In the first step, the glass formula is selected, and each high-purity raw material is weighed according to the molar percentages of the 4th, 5th, 6th, and 7th examples in Table 1.

[0036] In the second step, the process of melting the 4th, 5th, 6th and 7th groups of fluoroaluminate laser glasses is basically the same as that of the 1st, 2nd and 3rd cases of glass. The annealing temperature and process of the glasses in the 4th, 5th, 6th, and 7th cases are basically the same as those of the glasses in the 1st, 2nd, and 3rd cases.

[0037] The fluoroaluminum salt laser glass prepared in the above examples has been proved by experiments to be transparent and have excellent physical and chemical properties. The fluoroaluminate laser glass realizes high-concentration doping of rare earth ions erbium and ytterbium, and the highest doping concentration of erbium ions can reach about 23% without glass devitrification. As the doping concentration of erbium ions in the glass i...

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PUM

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Abstract

The present invention is fluoroaluminate laser glass and its preparation. The fluoroaluminate laser glass has molar material composition of: AlF3 30-40 wt%, MgF2 10-12.5 wt%, CaF2 10-12.5 wt%, SrF2 7.5-15 wt%, BaF2 7.5-15 wt%, YF3 0-15 wt%, ErF3 0-20 wt% and YbF3 0-25 wt%. The fluoroaluminate laser glass is prepared through melting process, is transparent a has no recrystallization and excellent in physical and chemical performance. In addition, the fluorescent strength of Er ion in the glass has no concentration quenching under high doping concentration. The laser glass with high doped Er and Y ion concentration may be used as the substrate glass material for micro chip laser and possesses excellent practical application foreground.

Description

Technical field: [0001] The invention relates to a microchip laser, in particular to a high-concentration rare earth ion-doped fluoroaluminate laser glass used in a microchip laser and a preparation method thereof. Background technique: [0002] The potential application of erbium-ion-doped lasers operating in a microchip structure in the 1.54 μm communication band and the "eye-safe" band has aroused great interest from researchers at home and abroad in recent years. The currently used microchip lasers operating in the 1.06 μm and 1.34 μm bands mainly use rare earth ion-doped crystal materials (see literature D.R.MacFarlane, J.Javorniczky, P.J.Newman, V.Bogdanov, D.J.Booth, W. E. K. Gibbs, J. Non-Cryst. Solids 213 & 214 (1997) 158). [0003] Compared with crystal materials, high-energy microchip lasers of glass materials require that the concentration of rare earth ions doped in the glass be at least an order of magnitude higher than that in the crystal. The purpose of inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B19/02C03B25/00C03C3/247C03C3/32C03C4/00
CPCC03C4/0071C03C3/325
Inventor 张军杰徐时清汪国年戴世勋胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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