轴对称矢量光束包含径向偏振和角向偏振,具有独特的强度和偏振分布,在表面等离子体激发、激光光镊和高分辨成像等领域有重要应用.光纤中的二阶本征模式TM01和TE01分别具有径向偏振和角向偏振性质,可用于产生轴对称偏振光束.介绍了基于少模光纤光栅(FMFBG)的全光纤轴对称偏振光束的产生方法.
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