Optical images rotation and reflection with engineered orbital angular momentum spectrum
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5043229
Abstract: According to the concept of digital spiral imaging, we reconstruct an arbitrary structured light beam with information based on orbital angular momentum (OAM) eigenstates, i.e., the Laguerre-Gaussian (LG) modes. We propose a method to realize… read more here.
Keywords: phase; structured light; oam; oam mode ... See more keywords
Effects of anisotropic oceanic turbulence on the propagation of the OAM mode of a partially coherent modified Bessel correlated vortex beam
Sign Up to like & getrecommendations! Published in 2019 at "Waves in Random and Complex Media"
DOI: 10.1080/17455030.2018.1464234
Abstract: ABSTRACT We have studied the impacts of anisotropic turbulence on the orbital angular momentum (OAM) mode of a partially coherent modified Bessel correlated vortex beam propagation in an oceanic channel. In the weak turbulence paraxial… read more here.
Keywords: mode; oceanic turbulence; turbulence; oam mode ... See more keywords
Superposing Multiple LP Modes With Microphase Difference Distributed Along Fiber to Generate OAM Mode
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2017.2674022
Abstract: We propose a new method to generate orbital angular momentum (OAM) mode by superposing multiple LP11 modes with microphase difference distributed along fiber propagation. This way, OAM mode can be generated by superposing a series… read more here.
Keywords: difference; mode; microphase difference; modes microphase ... See more keywords
Joint WDM and OAM Mode Group Multiplexed Transmission Over Conventional Multimode Fiber
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2023.3272737
Abstract: To exploit the advantages of multimode fiber (MMF)-based transmission and to improve the overall capacity, transmission of OAM modes over a single wavelength needs to be replaced by multichannel transmission with the proper experimental demonstration… read more here.
Keywords: talk; wdm; oam mode; transmission ... See more keywords
Direct Generation of OAM Mode-Group and Its Application in LoS-MIMO System
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2020.3009759
Abstract: A partial slotted curved waveguide leaky-wave antenna which can directly generate orbital angular momentum (OAM) mode-groups (MG) with high equivalent OAM order $l_{e}=\pm 40$ at 60 GHz is proposed in this letter. This partial arc… read more here.
Keywords: tex math; wave; inline formula; oam mode ... See more keywords
Analysis of electromagnetic vortex beams using modified dynamic mode decomposition in spatial angular domain.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.027702
Abstract: The orbital angular momentum (OAM) modes of electromagnetic (EM) beams are utilized for multiplexing in communication systems, where each OAM mode is encoded with data. The OAM index, or the so-called topological charge, identifies each… read more here.
Keywords: dynamic mode; mode; oam; oam mode ... See more keywords
Data-defined naïve Bayes (DNB) based decision scheme for the nonlinear mitigation for OAM mode division multiplexed optical fiber communication.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.415908
Abstract: In this manuscript, a data-defined naïve Bayes (DNB)-based decision scheme for nonlinear mitigation is presented for an orbital angular momentum (OAM) mode-division multiplexed optical fiber communication system. Due to the inherent nonlinearity characteristic of opto-electronic… read more here.
Keywords: dnb based; communication; oam mode; based decision ... See more keywords
Torsion-tunable OAM mode generator based on oxyhydrogen-flame fabricated helical long-period fiber grating.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.461003
Abstract: We demonstrate a class of all-fiber torsion-tunable orbital angular momentum (OAM) mode generators based on oxyhydrogen-flame fabricated helical long-period fiber gratings (HLPFGs). The 1-order and 3-order OAM modes are excited based on the HLPFGs inscribed… read more here.
Keywords: oam; torsion tunable; fiber; oam mode ... See more keywords
Orbital angular momentum exchange in a picosecond optical parametric oscillator.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.003606
Abstract: We report on the orbital angular momentum (OAM) exchange among the interacting beams in an ultrafast optical parametric oscillator (OPO). The singly-resonant OPO is synchronously pumped by a picosecond vortex beam from a frequency-doubled Yb-fiber… read more here.
Keywords: optical parametric; oam; angular momentum; oam mode ... See more keywords
OAM mode generation in helically twisted hollow-core antiresonant fiber.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.485302
Abstract: We investigate the orbital angular momentum (OAM) mode-generating process of a long-period onefold chiral fiber grating (L-1-CFG) based on a helically twisted hollow-core antiresonant fiber (HC-ARF). Taking the right-handed L-1-CFG for an example, we theoretically… read more here.
Keywords: helically twisted; fiber; hollow core; twisted hollow ... See more keywords
Analyzing OAM mode purity in optical fibers with CNN-based deep learning
Sign Up to like & getrecommendations! Published in 2019 at "Chinese Optics Letters"
DOI: 10.3788/col201917.100603
Abstract: Inspired by recent rapid deep learning development, we present a convolutional-neural-network (CNN)-based algorithm to predict orbital angular momentum (OAM) mode purity in optical fibers using far-field patterns. It is found that this image-processing-based technique has… read more here.
Keywords: deep learning; purity; oam mode; mode purity ... See more keywords