Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining

Junwei Zhang; Guoxuan Zhu; Jie Liu; Xiong Wu; Jiangbo Zhu; Cheng Du; Wenyong Luo; Yujie Chen; Siyuan Yu

doi:10.1364/OE.26.004243

Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining

Junwei Zhang, Guoxuan Zhu, Jie Liu, Xiong Wu, Jiangbo Zhu, Cheng Du, Wenyong Luo, Yujie Chen, Siyuan Yu

Department of Electrical & Electronic Engineering

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Abstract

An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme using high-order mode groups (MGs) in a graded-index ring-core fiber (GIRCF) is proposed, in which a receive-diversity architecture is designed for each MG to suppress the mode partition noise resulting from random intra-group mode crosstalk. The signal-to-noise ratio (SNR) of the received signals is further improved by a simple maximal ratio combining (MRC) technique on the receiver side to efficiently take advantage of the diversity gain of the receiver. Intensity-modulated direct-detection (IM-DD) systems transmitting three OAM mode groups with total 100-Gb/s discrete multi-tone (DMT) signals over a 1-km GIRCF and two OAM mode groups with total 40-Gb/s DMT signals over an 18.4-km GIRCF are experimentally demonstrated, respectively, to confirm the feasibility of our proposed OAM-MGM scheme.

Original language	English
Pages (from-to)	4243-4257
Number of pages	15
Journal	Optics Express
Volume	26
Issue number	4
Early online date	8 Feb 2018
DOIs	https://doi.org/10.1364/OE.26.004243
Publication status	Published - 19 Feb 2018

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@article{4bc6fdf82c7c429697fe997878cfa676,

title = "Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining",

abstract = "An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme using high-order mode groups (MGs) in a graded-index ring-core fiber (GIRCF) is proposed, in which a receive-diversity architecture is designed for each MG to suppress the mode partition noise resulting from random intra-group mode crosstalk. The signal-to-noise ratio (SNR) of the received signals is further improved by a simple maximal ratio combining (MRC) technique on the receiver side to efficiently take advantage of the diversity gain of the receiver. Intensity-modulated direct-detection (IM-DD) systems transmitting three OAM mode groups with total 100-Gb/s discrete multi-tone (DMT) signals over a 1-km GIRCF and two OAM mode groups with total 40-Gb/s DMT signals over an 18.4-km GIRCF are experimentally demonstrated, respectively, to confirm the feasibility of our proposed OAM-MGM scheme.",

author = "Junwei Zhang and Guoxuan Zhu and Jie Liu and Xiong Wu and Jiangbo Zhu and Cheng Du and Wenyong Luo and Yujie Chen and Siyuan Yu",

year = "2018",

month = feb,

day = "19",

doi = "10.1364/OE.26.004243",

language = "English",

volume = "26",

pages = "4243--4257",

journal = "Optics Express",

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TY - JOUR

T1 - Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining

AU - Zhang, Junwei

AU - Zhu, Guoxuan

AU - Liu, Jie

AU - Wu, Xiong

AU - Zhu, Jiangbo

AU - Du, Cheng

AU - Luo, Wenyong

AU - Chen, Yujie

AU - Yu, Siyuan

PY - 2018/2/19

Y1 - 2018/2/19

N2 - An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme using high-order mode groups (MGs) in a graded-index ring-core fiber (GIRCF) is proposed, in which a receive-diversity architecture is designed for each MG to suppress the mode partition noise resulting from random intra-group mode crosstalk. The signal-to-noise ratio (SNR) of the received signals is further improved by a simple maximal ratio combining (MRC) technique on the receiver side to efficiently take advantage of the diversity gain of the receiver. Intensity-modulated direct-detection (IM-DD) systems transmitting three OAM mode groups with total 100-Gb/s discrete multi-tone (DMT) signals over a 1-km GIRCF and two OAM mode groups with total 40-Gb/s DMT signals over an 18.4-km GIRCF are experimentally demonstrated, respectively, to confirm the feasibility of our proposed OAM-MGM scheme.

AB - An orbital-angular-momentum (OAM) mode-group multiplexing (MGM) scheme using high-order mode groups (MGs) in a graded-index ring-core fiber (GIRCF) is proposed, in which a receive-diversity architecture is designed for each MG to suppress the mode partition noise resulting from random intra-group mode crosstalk. The signal-to-noise ratio (SNR) of the received signals is further improved by a simple maximal ratio combining (MRC) technique on the receiver side to efficiently take advantage of the diversity gain of the receiver. Intensity-modulated direct-detection (IM-DD) systems transmitting three OAM mode groups with total 100-Gb/s discrete multi-tone (DMT) signals over a 1-km GIRCF and two OAM mode groups with total 40-Gb/s DMT signals over an 18.4-km GIRCF are experimentally demonstrated, respectively, to confirm the feasibility of our proposed OAM-MGM scheme.

U2 - 10.1364/OE.26.004243

DO - 10.1364/OE.26.004243

M3 - Article (Academic Journal)

C2 - 29475276

SN - 1094-4087

VL - 26

SP - 4243

EP - 4257

JO - Optics Express

JF - Optics Express

IS - 4

ER -

Orbital-angular-momentum mode-group multiplexed transmission over a graded-index ring-core fiber based on receive diversity and maximal ratio combining

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