Pump-induced bleaching of the saturable absorber in short-pulse Nd:YAG/Cr4+:YAG passively Q-switched microchip lasers

被引:37
作者
Zayhowski, JJ [1 ]
Wilson, AL [1 ]
机构
[1] MIT, Lincoln Lab, Lexington, MA 02420 USA
关键词
diode-pumped lasers; microchip lasers; optical saturation; passive Q-switching; solid-state lasers; YAG materials/devices;
D O I
10.1109/JQE.2003.819535
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Bleaching of the saturable absorber by pump light increases the length of the pulse generated in a passively Q-switched Nd:YAG/Cr4+:YAG microchip laser and decreases the pulse energy. This effect is greatest when transmitted pump light is nearly focused in the Cr4+:YAG and when pumping is sufficiently intense to bleach the absorption of the Nd:YAG. Both effects are important in short-pulse microchip lasers. The maximum repetition rate of a passively Q-switched Nd:YAG/Cr4+:YAG microchip laser is, correlated with the pulsewidth. In general, it decreases as the pulsewidth gets shorter.
引用
收藏
页码:1588 / 1593
页数:6
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