Chiral fiber Bragg gratings for vortex signal generation

被引：1
|
作者：
Gizatulin, Azat R. [1 ]
Meshkov, Ivan K. [1 ]
Vinogradova, Irina L. [1 ]
Bagmanov, Valeriy Kh [1 ]
Sultanov, Albert Kh [1 ]
机构：
[1] Ufa State Aviat Tech Univ, Dept Telecommun Syst, 12 K Marx St, Ufa 450008, Russia
来源：
OPTICAL TECHNOLOGIES FOR TELECOMMUNICATIONS 2020 | 2021年 / 11793卷
基金：
俄罗斯科学基金会;
关键词：
chiral fiber structures; vortex modes; overlap integral; mode coupling; MDM; SDM; BEAMS;
D O I：
10.1117/12.2593041
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 paper the chiral fiber Bragg gratings (ChFBG) for generation of fiber modes carrying orbital angular momentum (OAM, vortex modes) are considered. Within the framework of the article, a generalized mathematical model of ChFBG is presented including an arbitrary function of apodization and chirping, which makes it possible to calculate gratings that form vortex modes of a given order for the required frequency range with the required reflection coefficient. In addition, a matrix method based on the mathematical apparatus of the coupled modes theory for describing ChFBG is proposed, simulation of the considered fiber structures is carried out.
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页数：9
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