光学
激光器
极化(电化学)
纳秒
双折射
材料科学
激光束质量
脉冲宽度调制
梁(结构)
Q开关
激光功率缩放
脉冲持续时间
光电子学
物理
功率(物理)
激光束
化学
物理化学
量子力学
作者
Sanbin Chen,Jianlang Li,Ken‐ichi Ueda
摘要
We have directly generated two kinds of vector polarized beam pulses from an end pumped rotating Nd:YAG disk laser design acousto-optic Q-switch pulse modulation. About 20 ns pulse width with peak power 29 kW and stable pulse vector polarized beams are achieved at the continuous absorbed pump power. The laser crystal rotary effectively alleviates thermal effect that affects the power scaling with high beam quality. The output state is controlled by an intra-cavity polarization selector birefringent crystal. The polarization degrees of the azimuthally and radially polarized beams are 98.6% and 98.2%, respectively. The study suggests that this new method would constitute a laser light source for producing power and single pulse energy scaling, short pulse width, and high-purity structured vector beams and serve this function.
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