Using SBS for improvement of output beam divergence in excimer laser systems

被引：0
|
作者：
Ivanov, NG [1 ]
Losev, VF [1 ]
Panchenko, YN [1 ]
机构：
[1] Russian Acad Sci, SB, Inst High Current Elect, Gas Laser Lab, Tomsk 634055, Russia
来源：
INTERNATIONAL CONFERENCE ON ATOMIC AND MOLECULAR PULSED LASERS IV | 2002年 / 4747卷
关键词：
D O I：
10.1117/12.460104
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Formation of a diffraction limited divergence and obtaining a high contrast of radiation in electric-discharge XeCl laser system due to SBS are investigated. Possibility of a correction of laser beam wave-front distortion on an astigmatic and a spherical aberrations and on a refractive coefficient non-uniformity in optics elements and atmosphere is shown. Correction of laser beam wave-front having the 20-fold distortion of diffraction limited angle using phase-conjugate Brillouin mirror allowed to obtain the initial angle of 2 x 10(-5) rad divergence of laser beam. Use the threshold conditions of Brillouin scattering allowed to increase the XeCl laser radiation contrast from P-gen/P-noise similar to 4 up to P-gen/(noise) = 10(6)-10(7).
引用
收藏
页码：74 / 79
页数：6
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