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Mode Coupling Analysis Of Hollow Ring-Core Fibers For Oam Transmission

Matteo Lonardi, Gianluca Guerra, Leonardo Marcon, Reza Mirzaei Nejad, Marco Santagiustina, Andrea Galtarossa, Leslie Ann Rusch, Alberto Bononi, Luca Palmieri
2018 Zenodo  
We present an analytical and numerical description of coupling between OAM modes in hollow ring-core fibers affected by stress birefringence and ellipticity.  ...  The analysis paves the way to a better modeling of propagation in these fibers.  ...  In this paper, we examine mode coupling in hollow ring-core (air core) OAM fibers to develop models for mode propagation.  ... 
doi:10.5281/zenodo.1038977 fatcat:4udonvpqezgqvnxuz4xxgiysie

Design Analysis of OAM Fibers using Particle Swarm Optimization Algorithm

Jun Ho Chang, Alessandro Corsi, Leslie A. Rusch, Sophie LaRochelle
2019 Journal of Lightwave Technology  
We study the design of ring core fibers (RCFs) supporting orbital angular momentum (OAM) modes for mode division multiplexing (MDM) transmission systems.  ...  Index Terms-Fiber design, mode division multiplexing (MDM), orbital angular momentum (OAM), ring core fiber (RCF), space division multiplexing (SDM), few mode fiber (FMF).  ...  Haisu Li for insightful discussions.  ... 
doi:10.1109/jlt.2019.2945870 fatcat:3jh222n62ncyrctf5na6sxb2pe

Transmission and Generation of Orbital ANGULAR Momentum Modes in Optical Fibers

Zhuo Wang, Jiajing Tu, Shecheng Gao, Zhaohui Li, Changyuan Yu, Chao Lu
2021 Photonics  
In this review, we focus on discussing the novel fibers that are suitable for stable OAM mode transmission and conversion. The fundamental theory of fiber modes is introduced first.  ...  Therefore, the coupled-mode theory and coupled-power power theory are introduced to analyze OAM modes crosstalk. Finally, the challenges and prospects of the applications of OAM fibers are discussed.  ...  At the same time, a kind of ring-core photonic crystal fiber (RC-PCF) was designed for OAM mode transmission with ultra-low confinement loss and wide bandwidth [37] .  ... 
doi:10.3390/photonics8070246 fatcat:njd7lkmu5faynmu6cv4psdmehq

Air-core ring fiber guiding >400 radially fundamental OAM modes across S+C+L bands

Yingning Wang, Wenqian Zhao, Wenpu Geng, Yuxi Fang, Changjing Bao, Zhi Wang, Hao Zhang, Yongxiong Ren, Zhongqi Pan, Yang Yue
2021 IEEE Access  
DESIGN OF THE GE-DOPED AIR-CORE FIBER Here, the designed fiber we propose has a hollow air-core as a repulsive barrier and a high-index Ge-doped ring region as the transport layer to guide the OAM modes  ...  Numerical analysis shows that fiber with 50-µm air-core radius and 1.5-µm ring width can simultaneously support 436 radially fundamental OAM modes at 1550 nm.  ... 
doi:10.1109/access.2021.3078504 fatcat:cwmc7asxtjgphghbfgrp4jtkaa

Hollow Ring-core Photonic Crystal Fiber with > 500 OAM Modes over 360-nm Communications Bandwidth

Yingning Wang, Yao Lu, Changjing Bao, Wenpu Geng, Yuxi Fang, Baiwei Mao, Zhi Wang, Yan-Ge Liu, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue
2021 IEEE Access  
Optical fiber with 8 OAM mode channels and 10 WDM channels for transmission distances of 50 kilometers has been achieved [41] , providing low fiber loss and low crosstalk. K. Ingerslev et al.  ...  Furthermore, we analyze the effective refractive index difference between the even and odd fiber eigenmodes in the curved hollow ring-core PCF.  ... 
doi:10.1109/access.2021.3076490 fatcat:qbopan7rrbfbvklfrnhwkg2ykm

Enhancement of OAM and LP modes based on double guided ring fiber for high capacity optical communication

Fahad Ahmed Al-Zahrani, Md. Mehedi Hassan
2021 Alexandria Engineering Journal  
This article introduced a double guided ring-based spiral photonic crystal fiber (S-PCF) supporting both the orbital angular momentum (OAM) and linear polarization (LP) mode simultaneously with the efficient  ...  , respectively), supported a decent amount of modes which is numerically 64 OAM and 6 LP modes, maintaining the large refractive index differences (>10 À4 ) of all the eigenmodes, and a relatively flat  ...  Acknowledgement This manuscript has not been published yet and not even under consideration for publication elsewhere. The authors are grateful who have participated in this research work.  ... 
doi:10.1016/j.aej.2021.04.052 fatcat:mfg4xoksyje3tftjkyewyongxq

Revolutionizing Optical Fiber Transmission And Networking Using The Orbital Angular Momentum Of Light

Antonella Bogoni
2015 Zenodo  
The talk will revise the new research results on the use of the orbital angular momentum of light for increasing the capacity and the flexibility in nextgeneration datacenters.  ...  Invited Talk at ECOC 2015 Symposium: Optical Communications and Networks for Datacenters.  ...  -3 .  Critical study of algorithms for calculation of nonlinear coupling coefficients in stronglyguiding waveguides such as OAM with hollow core 4,5  Carried out numerical simulation of OAM mode transmission  ... 
doi:10.5281/zenodo.154496 fatcat:cq43bloi7nde5prg4h6xpyhs2y

Analysis of modal coupling due to birefringence and ellipticity in strongly guiding ring-core OAM fibers

Gianluca Guerra, Matteo Lonardi, Andrea Galtarossa, Leslie A. Rusch, Alberto Bononi, Luca Palmieri
2019 Optics Express  
After briefly recalling the issue of OAM mode purity in strongly-guiding ring-core fibers, this paper provides a methodology to calculate the coupling strength between OAM mode groups due to fiber perturbations  ...  Finally, the effect that modal coupling has on OAM transmission is assessed in terms of SNR penalty.  ...  and to study the propagation of OAM modes in stress birefringence-and core ellipticity-affected fibers, we consider a hollow ring-core fiber for OAM transmission [9] and numerically assess its propagation  ... 
doi:10.1364/oe.27.008308 fatcat:tv7qq3mm35ekfdh2uhh7yhvjku

Orbital Angular Momentum preserving guided mode in helically twisted hollow core photonic crystal fiber at Dirac point [article]

Rik Chattopadhyay, Shyamal K. Bhadra
2019 arXiv   pre-print
We report trapping and propagation of photonic Dirac mode in a helically twisted hollow core photonic crystal fiber (HC-PCF) where the trapped light in the hollow (air) defect can preserve the orbital  ...  The effect of twist rate, defect geometry and crystal dimension on the propagation of OAM carrying trapped Dirac modes is critically analyzed.  ...  Shantanu Bhattacharya, Director, IACS for his support to carry out the research work. The authors are indebted to CSIR-ES scheme-21(2017)/15/EMR-II for funding.  ... 
arXiv:1902.09117v1 fatcat:6stovxw5ifg77fykxmwrmochum

The third- and fourth-order orbital angular momentum multiplexed amplification with ultra-low differential mode gain [article]

TianJin Wen, Shecheng Gao, Wei Li, Jiajing Tu, Cheng Du, Ji Zhou, Bin Zhang, Weiping Liu, Zhaohui Li
2021 arXiv   pre-print
In this Letter, a ring-core erbium-doped fiber (RC-EDF), with two-layer erbium-doped structure, supporting up to the fourth-order orbital angular momentum (OAM) mode is designed and fabricated for OAM  ...  the modal gain under the fundamental mode core-pumping.  ...  Although the theoretical analysis show that EDF with a ring-core profile can realize low DMG [17] , the gain characteristics of RC-EDF at experiment for higher-order (|l|>2) OAM modes-multiplexed amplification  ... 
arXiv:2108.09680v1 fatcat:ax4ohandtbg7ncffca26cyuxdy

OAM Modes in Optical Fibers for Next Generation Space Division Multiplexing (SDM) Systems [chapter]

Alaaeddine Rjeb, Habib Fathallah, Mohsen Machhout
2021 Fiber Optics - Technology and Applications  
Orbital Angular Momentum (OAM) is one of the variants of MDM that showed promising features including the efficient enhancement of capacity transmission from Tbit to Pbit and substantial improvement of  ...  This is based on separate/independent and orthogonal spatial modes of optical fiber as data carriers along optical fiber.  ...  Experimentally, the transmission of two OAM mode-group is demonstrated over a 50 km ring core fiber without the use of MIMO DSP [63] .  ... 
doi:10.5772/intechopen.97773 fatcat:nbbzoyqlnveqzjfbyvm4cyudsu

Design of a family of ring-core fibers for OAM transmission studies

Charles Brunet, Bora Ung, Lixian Wang, Younès Messaddeq, Sophie LaRochelle, Leslie A. Rusch
2015 Optics Express  
We propose a family of ring-core fibers, designed for the transmission of OAM modes, that can be fabricated by drawing five different fibers from a single preform.  ...  We determine targeted fiber dimensions and explain our strategy for examining a design family rather than a single fiber design.  ...  Pravin Vaity for validating transmission of OAM modes in each fiber and providing measurements in Fig. 5 .  ... 
doi:10.1364/oe.23.010553 pmid:25969095 fatcat:g46j4gns7rbmzoiimbi25cftgq

Carrying Data on the Orbital Angular Momentum of Light

Leslie A. Rusch, Mohammad Rad, Karen Allahverdyan, Irfan Fazal, Eric Bernier
2018 IEEE Communications Magazine  
family of five related ring core fibers.  ...  Another all fiber component, a fiber coupler consisting of a central ring and four external cores is shown to be able to generate OAM modes.  ... 
doi:10.1109/mcom.2018.1700058 fatcat:mdx5udlnlzde7ku7uz23oxfdny

Generation of Vortex Optical Beams Based on Chiral Fiber-Optic Periodic Structures

Azat Gizatulin, Ivan Meshkov, Irina Vinogradova, Valery Bagmanov, Elizaveta Grakhova, Albert Sultanov
2020 Sensors  
In addition, a matrix method for describing the ChFBG is proposed, based on the mathematical apparatus of the coupled modes theory and scattering matrices.  ...  In this paper, we consider the process of fiber vortex modes generation using chiral periodic structures that include both chiral optical fibers and chiral (vortex) fiber Bragg gratings (ChFBGs).  ...  a ring-core structure and allows the formation of first-order OAM modes.  ... 
doi:10.3390/s20185345 pmid:32961965 pmcid:PMC7571199 fatcat:inogby6xxjbt3edsvc5k63e5xm

Modeling of the Twist-induced Effect in Circular Photonic Crystal Fiber Transmitting Orbital Angular Momentum Modes

Jingxuan Yang, Wei Li, Hu Zhang, Xiaoguang Zhang, Lixia Xi, Wenbo Zhang
2021 Results in Physics  
Moreover, we analyze the mode quality and transmission characteristics of the twisted OAM fiber.  ...  These superior optical properties are advantageous to twisted OAM fibers for stable data transmission in large-capacity and long-distance optical fiber communication systems.  ...  Funding This work is partly supported by the Science and Technology Project of for universities of Hebei (QN2020227, QN2021201); Natural Science Declaration of Competing Interest The authors declare  ... 
doi:10.1016/j.rinp.2021.104626 fatcat:ifyqbflr4jaixf4vjelkexdy3i
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