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Yttrium erbium ion gadolinium sodium molybdate double-doped laser crystal and preparation method and usage thereof

A laser crystal, erbium ion technology, applied in crystal growth, chemical instruments and methods, single crystal growth and other directions, can solve the problems of small absorption cross section, weak absorption, high threshold power, etc.

Inactive Publication Date: 2007-09-19
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

But since Er 3+ Due to the weak absorption of pump light by ions, the small absorption cross section, and the long life of the lower energy level of the laser, there are shortcomings such as low laser efficiency and high threshold power. Therefore, in order to obtain satisfactory system efficiency, other rare earths are usually doped Ions are used as sensitizers to improve its laser output efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: The doping concentration is 1.0at.% Er grown by pulling method 3+ and 10at.%Yb 3+ Yb 3+ / Er 3+ :NaGd(MoO 4 ) 2 laser crystals.

[0013] Accurately weighed Na according to the ratio 2 CO 3 、Gd 2 o 3 、MoO 3 、Er 2 o 3 , Yb 2 o 3 Mix and grind evenly, after tableting, put in Φ80×80mm 3 In a corundum crucible, the solid phase reaction was carried out at 650°C in a muffle furnace for 24 hours; after taking it out, the tablet was reground and then heated to 850°C for 24 hours. Put the synthesized above samples into Φ50×40mm 3 In the platinum crucible, using the pulling method, in the air atmosphere, the growth temperature is 1173 ℃, the crystal rotation speed is 30 rpm, and the pulling speed is 1 mm / hour, and the size is Φ20×37mm. 3 high quality Yb 3+ / Er 3+ :NaGd(MoO 4 ) 2 crystals. The ICP test shows that Er in the crystal 3+ The ion content is 0.75 at.%, Yb 3+ The ion content is 5.52 at.%.

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Abstract

A ytterbium-erbium-ion-double-intermingled gadolinium-natrium molybdate laser crystal and its preparing method and its use, relate to artificial lens field, in particular relate to a laser crystal Ytterbium-erbium-ion-double-intermingled gadolinium-natrium molybdate (Yb3+ / Er3+:NaGd(MoO4)2) and its preparing method and its use. Yb3+ / Er3+:NaGd(MoO4)2 crystal having high quality and bigger size is produced by the pulling method (Czochralski method) at 1173 DEG C, at the crystal rotational speed of 10-30 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 550 nm and 1500 nm wavelengths.

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): C30B29/32C30B15/00H01S3/16
Inventor 王国富李修芝林州斌张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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