SYNCHRONOUS, MODE-LOCKED PUMPING OF GAS-LASERS

被引:22
作者
LEE, SH
PETUCHOWSKI, SJ
ROSENBERGER, AT
DETEMPLE, TA
机构
[1] Department of Electrical Engineering, Electro-Physics Laboratory, Department of Physics, University of Illinois, Urbana, IL
关键词
D O I
10.1364/OL.4.000006
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The generation of mode-locked far-infrared pulses by synchronous, mode-locked optical pumping by CO2 lasers is demonstrated for the first time. The gain bandwidth implied by the observed short pulses (<1 nsec) exceeds the homogeneous linewidth of 40 MHz (T2 = 8 nsec) under the experimental conditions and is attributed to an effective inhomogeneous broadening in molecules with a K-multiplet structure such as 12CH3F and also to the presence of near-resonant stimulated Raman emission from each frequency component of the pump. This implies that the duration of pulses generated in low-pressure gases by this technique is determined by the greater of the pumpingpulse bandwidth or the linewidth of the lasing transition. © 1979, Optical Society of America.
引用
收藏
页码:6 / 8
页数:3
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