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Orbital Angular Momentum Modes (De)Multiplexer Without Mode Conversion Based on Strongly Guiding Coupled Ring-Core Fibers

The mode-matching/finite-element (MM/FE) method based on complex power matching is applied for the design of strongly guiding coupled ring-core fibers (RCFs) to modulate orbital angular momentum (OAM) beams. The evolutions of polarization and OAM states of light in the coupler are investigated. Due to the effects of linear birefringence and spin-orbit interaction (SOI), the OAM beam with opposite polarization and topological charge (TC) is observed at a certain distance to the end of the coupler after the coupling region in the form of complex supermodes. The impacts of separation distance and wavelength on the maximum coupling efficiency and inter-modal crosstalk are investigated to achieve the optimum trade-off between the crosstalk and the coupling length. Two types of OAM couplers with separated OAM modes of TC l=±1 are proposed, both of which can achieve high coupling efficiency ( >99% ) and low crosstalk (

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.40 No.19 October 1, 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 6523-6533

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

MODE DIVISION MULTIPLEXING (MDM)
ORBITAL ANGULAR MOMENTUM (OAM)
RING CORE FIBER (RCF)

Info Detail Spesifik

DOI: 10.1109/JLT.2022.3194731

Pernyataan Tanggungjawab

Qiaobo Wang, Xuedian Zhang, Xuejing Liu, Zhou Jun, Songlin Zhuang

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