Self-heterodyne detection of backscattered radiation in single-mode CO2 lasers

被引：6

作者：

Gordienko, V. M. ^{[1
,2
]}

Konovalov, A. N. ^{[3
]}

Ul'yanov, V. A. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119991, Russia

[3] Russian Acad Sci, Inst Laser & Informat Technol, Troitsk 142190, Moscow Region, Russia

来源：

QUANTUM ELECTRONICS | 2011年 / 41卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

autodyne gain; backscattered radiation; single-mode CO2 laser; LASER-DIODE; AUTODYNE LIDAR; FEEDBACK;

D O I：

10.1070/QE2011v041n05ABEH014517

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：

Self-heterodyning in dc-discharge-pumped single-mode CO2 lasers is analysed theoretically and studied experimentally under strong and weak feedback conditions. Relations for the autodyne gain and modulation depth due to the effect of backscattered radiation with a Doppler-shifted frequency are obtained. Nonlinear distortions of the autodyne signal caused by a strong laser-target feedback are studied. It is shown that the autodyne detection of backscattered radiation in CO2 lasers can be considered linear even in the case of strong laser beam distortions (nonlinear distortions below 5%).

引用

页码：433 / 440

页数：8

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