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Proceedings Paper

Growth of Yb-doped fluorapatate crystal and study of its defects and spectroscopy performance
Author(s): Peizhi Yang; Peizhen Deng; Jun Xu; Yao Chai; Wei Min Chen
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Paper Abstract

We have successfully grown Yb:FAP(fluorapatite) crystal doped with 1 - 5 at% Yb by CZ technique. Crystalline boules which are colorless and transparent have the size of 22 mm in diameter and 45 mm in length. The optimal growth parameters are presented. During a Yb:FAP crystal growth run there exists a continuous loss of fluoride through evaporation, so 5% excess of calcium fluoride was usually added. To eliminate the defects, a post-annealing method has been developed where the boule is suspended above the melt surface for two days in a temperature zone that is about 400 degrees Celsius below the melting point. The defects of crystals were discussed, and the spectroscopy performances of Yb:FAP crystal were reported.

Paper Details

Date Published: 14 August 1998
PDF: 7 pages
Proc. SPIE 3556, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II, (14 August 1998); doi: 10.1117/12.318250
Show Author Affiliations
Peizhi Yang, Shanghai Institute of Optics and Fine Mechanics (China)
Peizhen Deng, Shanghai Institute of Optics and Fine Mechanics (China)
Jun Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Yao Chai, Shanghai Institute of Optics and Fine Mechanics (China)
Wei Min Chen, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 3556:
Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II
Chuangtian Chen, Editor(s)

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