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Erbium boracic acid lanthanum calcium doped laser crystal and preparation method and usage thereof

A laser crystal, lanthanum erbium borate technology, applied in crystal growth, chemical instruments and methods, single crystal growth, etc.

Inactive Publication Date: 2007-09-19
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the artificial ruby ​​pulse laser was successfully developed in 1960, hundreds of laser crystals have been discovered so far, but due to various reasons, there are only a dozen kinds of laser crystals that can really be used in practice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: The doping concentration is 5.0 at.% Er grown by pulling method 3+ Er 3+ : Ca 3 La 2 (BO 3 ) 4 laser crystals.

[0012] Accurately weighed CaCO according to the ratio 3 , La 2 o 3 、H 3 BO 3 、Er 2 o 3 Mix and grind evenly, after tableting, put in φ60×40mm 3 In a platinum crucible, the solid phase reaction was carried out at 800°C for 12 hours in a muffle furnace; after taking it out, the tablet was reground and then heated to 1200°C for 24 hours. Put the synthesized above samples into the iridium crucible, adopt the pulling method, under N 2 In the atmosphere, when the growth temperature is 1420°C, the crystal rotation speed is 15 rpm, and the pulling speed is 0.8 mm / hour, a crystal with a size of 25×20×20mm is grown. 3 high quality Er 3+ Content of 5.0 at.% Er 3+ : Ca 3 La 2 (BO 3 ) 4 crystals.

Embodiment 2

[0013] Example 2: The doping concentration is 1.0 at.% Er grown by pulling method 3+ Er 3+ : Ca 3 La 2 (BO 3 ) 4 laser crystals.

[0014] Accurately weighed CaCO according to the ratio 3 , La 2 o 3 、H 3 BO 3 、Er 2 o 3 Mix and grind evenly, after tableting, put in φ60×40mm 3 In a platinum crucible, the solid phase reaction was carried out at 800°C for 12 hours in a muffle furnace; after taking it out, the tablet was reground and then heated to 1200°C for 24 hours. Put the synthesized above samples into the iridium crucible, adopt pulling method, in N 2 In the atmosphere, when the growth temperature is 1420°C, the crystal rotation speed is 15 rpm, and the pulling speed is 1 mm / hour, a crystal with a size of 28×22×20mm is grown. 3 high quality Er 3+ 1.0 at.% Er 3+ : Ca 3 La 2 (BO 3 ) 4 crystals.

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Abstract

A erbium-intermingled lanthanum-calcium borate laser crystal and its preparing method and its use, relate to artificial lens field. Er3+ / Yb3+:Ca3La2(BO3)4 crystal having high quality and bigger size is produced by the pulling method at 1410 DEG C, at the crystal rotational speed of 10-25 turns / minute, under the drawing speed of 0.5-2 mm / hour. The crystal is a novel laser crystal, and can produce the laser output of about 1.55 mum wavelength. The solid laser produced by the crystal can be used in the a plurality of fieldes such as spectroscopy, biomedicine, communication, military affairs, ect.

Description

technical field [0001] The invention relates to the field of artificial crystals and crystal growth in the technical field of optoelectronic functional materials. Background technique [0002] Laser crystal is the working substance of solid-state laser. It refers to the luminescent material that uses crystal as the matrix to absorb pump light energy and convert it into laser output through discrete luminescent centers. The solid-state laser working substance is composed of matrix material and active ions. Its various physical and chemical properties are mainly determined by the matrix material, while its spectral characteristics and fluorescence lifetime are determined by the energy level structure of the active ion. Since the artificial ruby ​​pulse laser was successfully developed in 1960, hundreds of laser crystals have been discovered so far, but due to various reasons, there are only a dozen kinds of laser crystals that can really be used in practice. [0003] At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/22C30B15/00H01S3/16
Inventor 王国富韦波林州斌张莉珍胡祖树
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI