Ytterbium doped gadolinium lanthanum calcium oxoborate laser crystal, producing method, and purpose

A technology of ytterbium-doped calcium-gadolinium-lanthanum oxyborate and ytterbium-calcium-gadolinium-lanthanum oxyborate, which is applied in the field of ytterbium-doped calcium-gadolinium-lanthanum oxyborate laser crystals and their preparation and application, and can solve the problems of unsuitable LD pumping and narrow absorption lines, etc. question

Inactive Publication Date: 2008-07-02
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

However, it has the disadvantage of narrow absorption spectrum and is not suitable for pumping by LD, and LD pumping will be the development direction of laser pumping sources in the future.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: The doping concentration is 10.0 at.% Yb grown by pulling method 3+ Yb 3+ :Gd 0.78 La 0.12 Ca 4 O(BO 3 ) 3 laser crystals.

[0014] Accurately weighed CaCO according to the ratio 3 、Gd 2 o 3 , La 2 o 3 、H 3 BO 3 , Yb 2 o 3 Mix and grind evenly, after tableting, put in φ40×60mm 3 In a platinum crucible, the solid phase reaction was carried out in a muffle furnace at 900°C for 12 hours; 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 about 1475°C, the crystal rotation speed is 12 rpm, and the pulling speed is 0.5-2 mm / hour, a crystal with a size of φ21×26mm is grown. 3 high quality Yb 3+ 10.0 at.% Yb 3+ :Gd 0.78 La 0.12 Ca 4 O(BO 3 ) 3 crystals.

Embodiment 2

[0015] Example 2: The doping concentration is 10.0 at.% Yb grown by pulling method 3+ Yb 3+ :Gd 0.63 La 0.27 Ca 4 O(BO 3 ) 3 laser crystals.

[0016] Accurately weighed CaCO according to the ratio 3 、Gd 2 o 3 , La 2 o 3 、H 3 BO 3 , Yb 2 o 3 Mix and grind evenly, after tableting, put in φ40×60mm 3 In a platinum crucible, the solid phase reaction was carried out in a muffle furnace at 900°C for 12 hours; 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 about 1460°C, the crystal rotation speed is 10 rpm, and the pulling speed is 0.5-1.5 mm / hour, a crystal with a size of φ19×25mm is grown. 3 high quality Yb 3+ 10.0 at.% Yb 3+ :Gd 0.63 La 0.27 Ca 4 O(BO 3 ) 3 crystals.

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PUM

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Abstract

The invention discloses a method for preparing and using laser crystal mixed with the ytterbium doped gadolinium lanthanum calcium oxyborate, which relate to the field of the intraocular lens. At a temperature of about 1470 DEG C, the invention, at a crystal rotation speed of 5 to 20 rotations per minute and a pulling rate of 0.5 to 2mm per hour, produce the crystal of Yb<3+>:Gd<1-X>La<X>Ca<4>O(BO3)3 of high quality and larger dimension though a czochralski method. The crystal is a novel laser crystal, which can generate a laser output with a wavelength of about 1 Mum. The crystal also has the frequency-doubled effect and can get blue-green laser output through a self-frequency-doubling or self-mixing nonlinear optical method. A solid laser made from the crystal can be applied in the fields such as spectroscopy, biomedicine, military science and etc.

Description

technical field [0001] The ytterbium-doped oxycalcium-gadolinium-lanthanum laser crystal and its preparation method and application relate to the field of artificial crystal and crystal growth in the technical field of optoelectronic functional materials, in particular to a laser crystal material used as a working substance in a solid-state laser. 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,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/06G02B1/02C30B29/00C30B29/10C30B29/22C30B15/00
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
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