Investigation of diode pumped passively Q-switched [100]- and [111]-Cut Nd: YAG laser

被引：0
作者：
机构：
[1] Institute of Laser Engineering, Beijing University of Technology, Beijing
来源：
Sun, Zhe | 1600年 / Chinese Optical Society卷 / 34期
关键词：
Cr[!sup]4+[!/sup]:YAG; Lasers; Nd: YAG; Passive Q-switch;
D O I：
10.3788/AOS201434.s114001
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学科分类号：
摘要：
Thermal depolarization caused by birefringence is a major factor that limits the output power of linearly polarized Nd:YAG laser. Compared with conventional [111]- cut Nd:YAG rod, the thermal depolarization depends on the polarization direction for the [100]- cut Nd:YAG rod. The linearly polarized output power can be improved by suitable modification of the polarization direction of oscillate laser. The [111]- and [100]- cut Nd:YAG rods are used as the gain medium and the Cr4+:YAG crystal is used as the saturable absorber for passively Q-switched laser. The experiment demonstrates that in comparison with conventional [111]- cut Nd:YAG rod, highly stabled output with high extinction is achieved by using the [100]- cut Nd:YAG rod as the laser crystal. The extinction ratio is 500:1 and polarized output stability is higher than 96.5%.
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页数：6
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