EFFECTS OF ENERGY-TRANSFER AMONG ER-+3 IONS ON THE FLUORESCENCE DECAY AND LASING PROPERTIES OF HEAVILY DOPED ER-Y3AL5O12

被引:121
作者
SHI, WQ [1 ]
BASS, M [1 ]
BIRNBAUM, M [1 ]
机构
[1] UNIV SO CALIF,CTR LASER STUDIES,LOS ANGELES,CA 90089
关键词
D O I
10.1364/JOSAB.7.001456
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Nonexponential fluorescence decay has been observed from both 4I11/2 and 4I13/2 states of Er3+ ions in heavily doped Er: YAG at room temperature. Processes of cross relaxation that originate in these states are shown to be responsible. Rate equations that include cross-relaxation processes are written and numerically solved, to result in the determination of the cross-relaxation coefficients. It is found that these coefficients do not change with Er3+ concentration. The effects of the cross-relaxation processes of Er3+ ions on fluorescence decay and lasing properties are discussed. © 1990 Optical Society of America.
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页码:1456 / 1462
页数:7
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