TRANSIENT ANALYSIS OF DEGENERATE 4-WAVE-MIXING IN SATURABLE ABSORBERS - APPLICATION TO CR4+GSGG AT 1.06-MU-M

被引:17
作者
BRIGNON, A
HUIGNARD, JP
机构
[1] Laboratoire Central de Recherches, Thomson-CSF
关键词
D O I
10.1016/0030-4018(94)90274-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We introduce a model of degenerate four-wave mixing in saturable absorbers in the transient regime when the interacting pulses have a duration much shorter than the lifetime of the excited-state level. Our model takes into account of the depletion and the mutual interaction of the pump waves. We study the influence of excited-state absorption on phase conjugate reflectivity. This theory agrees with experimental investigations made in Cr4+:GSGG with nanosecond pulses at lambda0 = 1.06 mum. A reflectivity of 0.6% is achieved and imaging capabilities are demonstrated.
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页码:717 / 726
页数:10
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