Growth and optical properties of RE doped bulk and fiber single crystals by Czochralski and micro pulling down methods

被引：22

作者：

Terada, Y ^{[1
]}

Shimamura, K ^{[1
]}

Fukuda, T ^{[1
]}

机构：

[1] Tohoku Univ, Mat Res Inst, Aoba Ku, Sendai, Miyagi 98077, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 275卷

关键词：

REVO4; NaRE(WO4)(2); K3Li2-xNb5+xO15+2x; modified Czochralski method; micro pulling down method;

D O I：

10.1016/S0925-8388(98)00420-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High quality oxide bulk and fiber crystals have been successfully grown by applying advanced single crystal growth methods. REVO4 single crystals have been grown by a modified Czochralski method in which a high temperature gradient was maintained at the interface during growth. Nd:GdVO4 single crystals showed superior lasing properties than those of Nd:YVO4 and Nd:YAG single crystals in slope efficiency, threshold pump power and output power. Birefringence of REVO4 were more than 0.22. High concentration Nd3+ ions doped NaRE(WO4)(2) (RE=Y, Gd) single crystal fibers were grown. Stimulated Raman scattering spectra of undoped NGW fiber was measured, and the Raman shift was observed to be larger than that of KGW. Nd3+ doped fibers showed superior optical properties such as high doping level and large stimulated Raman scattering shift for efficient multicolor laser. Crack-free and homogeneous K3Li2-xNb5+xO15+2x fiber crystals were grown with various pulling down rates. The crystals showed an excellent second harmonic generation properties. (C) 1998 Elsevier Science S.A.

引用

页码：697 / 701

页数：5

共 15 条

[1] FERROELECTRIC LITHIUM NIOBATE .3. SINGLE CRYSTAL X-RAY DIFFRACTION STUDY AT 24 DEGREES C [J].