Orbital Angular Momentum (OAM) Mode Mixing in a Bent Step Index Fiber in Perturbation Theory: Multiple Bends

被引:1
作者
Bhandari, Ramesh [1 ]
机构
[1] Lab Phys Sci, College Pk, MD 20740 USA
来源
IEEE PHOTONICS JOURNAL | 2020年 / 12卷 / 02期
关键词
Orbital angular momentum mode; bent fiber; multiple bends; coplanar; non-coplanar; mode mixing; crosstalk; output intensity pattern; polarization controller;
D O I
10.1109/JPHOT.2020.2972199
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this article, we address the impact of multiple fiber bends on orbital angular momentum (OAM) mode propagation in a fiber. In particular, we extend the OAM mode-mixing due to a single-fiber bend studied earlier in detail for the step-index fiber, to the case of a succession of bends. The bends may have a relative orientation with respect to each other. Analytic expressions leading to crosstalk are given. The OAM mode intensity at the output of a pair of bends is especially studied with emphasis on the intensity pattern changes that arise from the changes in the relative orientation of the bends.
引用
收藏
页数:10
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