Multimode oscillation of a cw unstable-cavity CO2 laser with a nonstationary active medium

被引：0
|
作者：
Naumov, VG [1 ]
Svotin, PA [1 ]
机构：
[1] State Res Ctr Russia, Troitsk Inst Innovat & Fus Res, Troitsk 142190, Russia
来源：
QUANTUM ELECTRONICS | 2002年 / 32卷 / 09期
关键词：
multimode lasing; amplitude-phase characteristics; angular divergence; unstable cavity;
D O I：
10.1070/QE2002v032n09ABEH002298
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：
A method of analysis of lasing at several transverse modes in a nonstationary active medium with substantial optical inhomogeneities is developed. It is based on the assumption that the round-trip transit time for radiation in the resonator is much shorter than the characteristic time of a change in the spatial distributions of the gain and refractive index. The nonstationary oscillation of a transverse-flow CO2 laser is analysed by this method in a two-dimensional approximation in the case when the vibrational excitation of an active medium at the cavity input changes in time and phase distortions move.
引用
收藏
页码：820 / 824
页数：5
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