Improving switch loss of Nd:YAG laser by double acousto-optic devices two-dimensional Q-switch

被引：0
|
作者：
Li, Qiang [1 ]
Zheng, Yi-Jun [1 ]
Wang, Zhi-Yong [1 ]
Li, Gang [1 ]
Zuo, Tie-Chan [1 ]
机构：
[1] Coll. of Laser Eng., Beijing Polytech. Univ., Beijing 100022, China
来源：
| 2003年 / Science Press卷 / 30期
关键词：
Acoustic wave diffraction - Acoustooptical effects - Optical switches - Q switching;
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摘要：
The switch-losses of one Q-switch, two Q-switches in acousto-field perpendicular or parallel are analyzed. According to the theory of acousto-optic (AO) interaction, the formulas of diffraction loss of two AO Q-switches. which acousto-field are perpendicular or parallel one another, in Raman-Nath diffraction are derived. The power divider for ensuring two AO Q-switch synchronization and effective power driving is designed. The calculation results are satisfied with Nd:YAG laser experimental results. It is shown that the switch-loss of two AO Q-switches, which acousto-field are perpendicular each other, is nearly three times as large as one AO Q-switch's, one time larger than the two AO Q-switches which acousto-field are parallel.
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