Effect of Twisted Side Cores on OAM Modes in Chirally-Coupled-Ring Fiber
2022 Asia Communications and Photonics Conference (ACP)（2022）
摘要
By using finite-element method (FEM) in the helical coordinates, the OAM modes are studied in a chirally-coupled-ring fiber with a ring, an inner and a pair of twisted side cores. The effects of the side cores on the effective indices of OAM modes are simulated in detail. It is shown that chirally-coupled-ring fiber has flexible design and great potential on the generation and transmission of OAM beams.
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关键词
chirally-coupled-ring (CCR) fiber,orbital angular momentum (OAM),twisted side cores,structure parameters
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