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.

中文翻译：

---

用主动调 Q 旋转圆盘激光器产生纳秒脉冲方位角和径向偏振光束

我们从端泵浦旋转 Nd:YAG 圆盘激光器设计声光 Q 开关脉冲调制直接产生了两种矢量偏振光束脉冲。在连续吸收的泵浦功率下实现了大约 20 ns 的脉冲宽度和 29 kW 的峰值功率和稳定的脉冲矢量偏振光束。激光晶体旋转有效地减轻了影响功率缩放的热效应，具有高光束质量。输出状态由腔内偏振选择器双折射晶体控制。方位偏振光束和径向偏振光束的偏振度分别为98.6%和98.2%。该研究表明，这种新方法将构成一种用于产生功率和单脉冲能量缩放、短脉冲宽度和高纯度结构矢量光束的激光光源，并提供此功能。