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Erbium ytterbium boracic acid gadolinium strontium doped laser crystal and preparation method and usage thereof

A laser crystal and crystal technology, applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve problems such as weak absorption of pump light and high laser oscillation threshold

Inactive Publication Date: 2007-09-19
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

Er as one of the rare earth dopant ions 3+ Ions can produce laser output around 1.5μm, but due to Er 3+ Weak absorption of pump light by ions, leading to a high lasing threshold

Method used

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Embodiment Construction

[0012] SrCO will be accurately weighed according to the proportion 3 , Gd 2 O 3 , H 3 BO 3 , Er 2 O 3 , Yb 2 O 3 Mix and grind evenly, after tableting, put into Φ80×80mm 2 In the corundum crucible, the solid-phase reaction was carried out in a muffle furnace at 1100 °C for 24 hours; after taking it out, the tablet was re-grinded and then heated to 1100 °C for 24 hours. Put the synthesized above samples into the iridium crucible, adopt the pulling method, in N 2 In the atmosphere, when the growth temperature is 1354 °C, the crystal rotation speed is 10 rpm, and the pulling speed is 1 mm / hour, the size of Φ21 × 35 mm is grown. 2 of high quality Er 3+ The content is 1.0at.%, Yb 3+ 10.0at.% Er 3+ / Yb 3+ :Sr 3 Gd(BO 3 ) 3 crystal.

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Abstract

A erbium- and ytterbium-intermingled gadolinium-strontium borate laser crystal and its preparing method and its use, relate to artificial lens field. Er3+ / Yb3+:Sr3Gd(BO3)3 crystal having high quality and bigger size is produced by the pulling method at 1354 DEG C, at the crystal rotational speed of 5-20 turns / minute, under the drawing speed of 0.5-2 mm / hour. The crystal belongs to trigonal system, space group of which is R3, and the refractive index is 1.73. The crystal is a novel Erbium- and ytterbium-intermingled laser crystal, which is suitable to be pumped by laser diode(LD), accordingly the infrared laser output of 1.5 mum wavelength can be reduced.

Description

technical field [0001] The present 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 a luminescent material that takes crystal as a matrix and absorbs pump light energy through discrete luminescent centers and converts it into laser output. The solid-state laser working substance is composed of host material and activated ions, and its various physical and chemical properties are mainly determined by the host material, while its spectral characteristics and fluorescence lifetime are determined by the energy level structure of the activated ions. Since the successful development of artificial ruby ​​pulsed lasers in 1960, hundreds of laser crystals have been discovered so far, but due to various reasons, only a dozen laser crystals can be actually used. [0003] At present, the most widel...

Claims

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Application Information

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IPC IPC(8): C30B29/22C30B15/00H01S3/16
Inventor 王国富赵丹林州斌张莉珍
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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