Two-beam-combined 7.4 j, 50 Hz Q-switch pulsed YAG laser system based on SBS phase conjugation mirror for plasma diagnostics

被引：27
作者：
Yoshida, H
Nakatsuka, M
Hatae, T
Kitamura, S
Sakuma, T
Hamano, T
机构：
[1] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan
[2] Japan Atom Energy Res Inst, Ibaraki 3110193, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2004年 / 43卷 / 8A期
关键词：
beam combination; stimulated Brillouin scattering; phase conjugation mirror; plasma diagnostics;
D O I：
10.1143/JJAP.43.L1038
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The phase conjugation of the optically nonlinear stimulated Brillouin scattering (SBS) process using heavy-fluorocarbon materials effectively compensated thermal degradation at two amplifier lines, resulting in an output energy of 7.4 J at 50 Hz. When combining two beams, the beat wave generation caused by the temporal coherence between the two beams can be prevented because the two beams leave at intervals longer than the coherence length of the pulse. The use of different Brillouin frequencies of reflection from different SBS substances can also be effective in preventing the interference effect caused by the spatial coherence between the two beams.
引用
收藏
页码：L1038 / L1040
页数：3
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