FABRICATION AND OPTICAL-PROPERTIES OF HIGH-PERFORMANCE POLYCRYSTALLINE ND-YAG CERAMICS FOR SOLID-STATE LASERS

被引:1141
作者
IKESUE, A
KINOSHITA, T
KAMATA, K
YOSHIDA, K
机构
[1] NAGAOKA UNIV TECHNOL,DEPT MAT SCI & TECHNOL,NAGAOKA,NIIGATA 90421,JAPAN
[2] OSAKA INST TECHNOL,INST LASER ENGN,OSAKA 535,JAPAN
关键词
D O I
10.1111/j.1151-2916.1995.tb08433.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Transparent polycrystalline YAG with nearly the same optical characteristics as those of a single crystal were fabricated by a solid-state reaction method using high-purity powders (>99.99 wt% purity). The average grain size and relative density of the 1.1 at.% Nd:YAG ceramics obtained were about 50 mu m and 99.98%, respectively. An oscillation experiment was performed on a cw laser by the diode laser excitation system using the fabricated ceramics. The experimental results indicated an oscillation threshold and a slope efficiency of 309 mW and 28%, respectively. These values were equivalent or superior to those of the 0.9 at.% Nd:YAG single crystal fabricated by the Czochralski method.
引用
收藏
页码:1033 / 1040
页数:8
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