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Faculty of Science, University of Brunei Darussalam, Brunei Darussalam   
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IJIEE 2016 Vol.6(1): 1-6 ISSN: 2010-3719
DOI: 10.18178/ijiee.2016.6.1.583

Numerical Analysis of Orbital Angular Momentum based Next Generation Optical SDM Communications System

Besma Hammami, Habib Fathallah, and Houria Rezig
Abstract— In this paper, we make a theoretical and numerical analysis of a transmission chain based on an Orbital Angular Momentum (OAM) technique in the case of ideal channel. In order to generate an OAM beam, we define a theoretical OAM encoder (vortex generator) similar to the Spiral Phase Pattern (SPP) in practice, converts a flat Gaussian phase front into a helix. We then multiplex several OAM channels, all modulated with QPSK streams of data and then decode specific modes and measure the overall performance in terms of signal to noise ratio (SNR) and bit error rate (BER).

Index Terms— Orbital angular momentum (OAM), OAM beam, vortex generator, theoretical OAM encoder.

Besma Hammami and Houria Rezig are with the Laboratoire Syscom, National School of Engineer Tunis, University de Manar, Tunis, Tunisia (e-mail: hammamibesma6@gmail.com, hourezg@yahoo.fr).
Habib Fathallah is with the KACST-TIC in Radio Frequency and Photonics for the e-Society, and the Electrical Engineering Department, King Saud University, Riyadh, Saudi Arabia (e-mail: hfathallah@ksu.edu.sa).

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Cite: Besma Hammami, Habib Fathallah, and Houria Rezig, " Numerical Analysis of Orbital Angular Momentum based Next Generation Optical SDM Communications System," International Journal of Information and Electronics Engineering vol. 6, no. 1, pp. 1-6, 2016.

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