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Phase Purity Measurement of Ultra-Broadband Orbital Angular Momentum Mode Excited by Meta-Facet Few-Mode Fiber

机译:Meta-Facet少模光纤激发的超宽带轨道角动量模的相纯度测量

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摘要

We design and fabricate metasurface on the facet of few-mode fiber (FMF). Ultra-broadband orbital angular momentum modes (OAM+1and OAM-1) are excited in the fiber and the phase purity from 1480-1640 nm is measured through one interferogram image.
机译:我们在少数模光纤(FMF)的小面上设计和制作超颖表面。在光纤中激发超宽带轨道角动量模式(OAM +1 和OAM -1 ),并通过一张干涉图测量从1480-1640 nm的相纯度。

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