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

页码：820 / 824

页数：5

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