EMISSION PROPERTIES, OSCILLATOR-STRENGTHS AND LASER PARAMETERS OF ER-3+ IN LIYF4 AT 2.7-MU-M

被引:57
作者
HUBERT, S [1 ]
MEICHENIN, D [1 ]
ZHOU, BW [1 ]
AUZEL, F [1 ]
机构
[1] CTR NATL ETUD TELECOMMUN,F-92220 BAGNEUX,FRANCE
关键词
D O I
10.1016/0022-2313(91)90004-F
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We reported already on the first observation of laser emission at several wavelengths (2.7-2.85-mu-m) for transitions between the 4I11/2 and 4I13/2 states of Er3+ in LiYF4 at room temperature under 0.8-mu-m diode laser and 0.514-mu-m argon laser excitation. In order to stabilise the action of CW lasing at 2.66 and 2.77-mu-m, the effect of polarisation on 4I11/2 --> 4I13/2 emission is studied, and oscillator strengths from ground state and excited states are calculated to predict a useful cross relaxation energy transfer.
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页码:7 / 15
页数:9
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