Amphawan, Angela and al-Nadesh, Yousef Ali Fazea and Ibrahim, Huda (2015) Investigation of channel spacing for Hermite-Gaussian mode division multiplexing in multimode fiber. In: IEEE 11th International Colloquium on Signal Processing & Its Applications (CSPA2015), 6-8 March 2015, Kuala Lumpur.

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Abstract

Mode division multiplexing (MDM) may be used to increase the capacity of multimode fiber interconnects for data centers.This paper demonstrates the importance of controlling the channel spacing of a MDM system capitalizing on Hermite-Gaussian (HG) modes in order to mitigate modal dispersion and minimize the average system bit-error rate.The effect of channel spacing of a 25-channel hybrid MDM-wavelength division multiplexing (WDM) system was examined through the x-index and y-index separations of Hermite polynomials of HG modes for different MMF lengths. Simulations prove that by controlling the index separations of the Hermite polynomials, acceptable BER was achieved for 25Gb/s data transmission for a distance of 800 meters for a 25-channel HG-based MDM-WDM system at a center wavelength of 1550.12nm.The optimal x-index and y-index Hermite polynomial separations for the HG modes are 2, 3 and 4.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	Print ISBN: 978-1-4799-8248-6
Uncontrolled Keywords:	mode division multiplexing (MDM); HermiteGaussian (HG) modes; control systems; channel spacing; multimode fiber; x-index separation; optical communications
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions:	School of Computing
Depositing User:	Dr. Angela Amphawan
Date Deposited:	15 Nov 2015 01:44
Last Modified:	27 Apr 2016 01:20
URI:	https://repo.uum.edu.my/id/eprint/16106

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