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首页> 外文期刊>Optics Letters >Converging-axicon-based radially polarized ytterbium fiber laser and evidence on the mode profile inside the gain fiber
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Converging-axicon-based radially polarized ytterbium fiber laser and evidence on the mode profile inside the gain fiber

机译：基于会聚轴锥的径向偏振光纤激光器以及增益光纤内部模式分布的证据

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摘要

The radially polarized mode is achieved from an active Yb fiber by utilizing of an intracavity convergingaxicon, where the axicon acts as a TM_(01) mode selector based on not only its Brewster convex surface but also the distance between its vertex and plane output coupler. The polarization state of the annular laser beam is checked by using a home-made eight-hole aperture. Furthermore, an uncoated plane glass plate is inserted into the cavity, and the reflected beam points to the existence of an annular lasing mode inside the gain fiber. The issues for developing high-power radially polarized fiber lasers also are considered.
机译：通过利用腔内会聚轴锥从有源Yb光纤获得径向偏振模，其中轴锥锥不仅基于其Brewster凸面而且还取决于其顶点与平面输出耦合器之间的距离，充当TM_（01）模式选择器。通过使用自制的八孔孔径检查环形激光束的偏振状态。此外，将未镀膜的平板玻璃板插入腔中，反射光束指向增益光纤内部存在环形激光模式。还考虑了开发高功率径向偏振光纤激光器的问题。

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