扭曲光纤中光旋涡的新型模色散

2019 Days on Diffraction (DD) Pub Date : 2019-06-01 DOI:10.1109/DD46733.2019.9016453

E. Barshak, C. Alexeyev, B. Lapin, M. Yavorsky

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引用次数: 0

摘要

我们证明了阶跃折射率扭曲光纤中具有拓扑电荷| r | r≥1的光旋涡存在三种可能的模式色散:偏振、拓扑和混合模式色散。我们发现，对于每一对> 1的光旋涡，这些色散的值是不同的，这是受扭曲机械应力影响的结果。我们通过数值计算得到了一定的光纤参数，使色散最小。

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Novel types of mode dispersion of optical vortices in twisted optical fibers

We demonstrate that there are three possible types of mode dispersion of optical vortices with topological charge |ℓ| ≥ 1 in step-index twisted fibers: polarization, topological and hybrid mode dispersion. We established that the values of these types of the dispersion are different for each pair of optical vortices with |ℓ| > 1, which is a result of the influence of twisted mechanical stress. We numerically obtained certain fiber parameters to minimize the dispersion.

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$2019 Days on Diffraction (DD)$

2019 Days on Diffraction (DD)

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