Radially polarized and passively Q-switched fiber laser.
Radially polarized and passively Q-switched fiber laser.
复制标题
径向极化和被动的Q开关纤维激光器。
DOI：
10.1364/ol.35.003574
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发表时间：
2010-11-01
期刊：
影响因子：
3.6
通讯作者：
Li J
中科院分区：
文献类型：
--
作者：
Lin D;Xia K;Li R;Li X;Li G;Ueda K;Li J
据我们所知，我们首次报道了一种径向偏振的被动调Q掺Yb光纤激光器。利用Cr4+：YAG晶体作为可饱和吸收体，光子晶体光栅作为偏振镜，在56.6 kHz的重复频率下，获得了峰值功率202W、脉宽75 ns、偏振纯度~92%的径向偏振脉冲。来自光纤激光器的具有径向偏振的调Q脉冲将为许多应用提供便利。
We report, for the first time to our knowledge, a radially polarized and passively Q-switched Yb-doped fiber laser. By using a Cr4+:YAG crystal as a saturable absorber and a photonic crystal grating as a polarization mirror, a radially polarized pulse is produced, which has 202 W of peak power, 75 ns duration, and ~92% polarization purity at a 56.6 kHz repetition rate. The Q-switched pulse with radial polarization from the fiber laser would facilitate numerous applications.