On phaser-based processing of impulse radio UWB over fiber systems employing SOA

H Taki, S Azou, A Hamie, A Al Housseini… - Optical fiber …, 2017 - Elsevier
In this study, we adopt a phaser-based processing to enhance the performance of impulse
radio over fiber system utilizing SOA. The amplifier has been placed at a distance in the …

Robustness analysis of a parallel two-box digital polynomial predistorter for an SOA-based CO-OFDM system

C Diouf, M Younes, A Noaja, S Azou, M Telescu… - Optics …, 2017 - Elsevier
The linearization performance of various digital baseband pre-distortion schemes is
evaluated in this paper for a coherent optical OFDM (CO-OFDM) transmitter employing a …

Simple pre-distortion schemes for improving the power efficiency of SOA-based IR-UWB over fiber systems

H Taki, S Azou, A Hamie, A Al Housseini… - Optics …, 2017 - Elsevier
In this paper, we investigate the usage of SOA for reach extension of an impulse radio over
fiber system. Operating in the saturated regime translates into strong nonlinearities and …

Nonlinear state–space model of semiconductor optical amplifiers with gain compression for system design and analysis

SB Kuntze, AJ Zilkie, L Pavel… - Journal of Lightwave …, 2008 - opg.optica.org
In this paper, we derive a new analytical state–space model for semiconductor optical
amplifier (SOA) dynamics with nonlinear gain compression. We show that a multichannel …

Efficient baseband digital predistortion techniques for linearizing power amplifier by taking into account nonlinear memory effect

X Feng - 2015 - hal.science
Baseband digital predistortion (DPD) techniques for linearizing power amplifiers (PA) with
memory effects are investigated in this thesis. Firstly, the relevant elements concerning PA …

Simple electrical predistortion method using Schottky diode for radio-over-fiber systems

BH Son, KJ Kim, Y Li, CI Park… - IEEE photonics …, 2015 - ieeexplore.ieee.org
A simple low-current consumption analog predistortion circuit is designed to enhance
linearity. The circuit is experimentally verified in a radio-over-fiber (RoF) systems. A Schottky …

Wideband predistortion technique with dual-parallel Schottky diodes for low power RoF systems

HS Kim, JS Lee, BH Son, SJ Jeon… - IEEE Photonics …, 2021 - ieeexplore.ieee.org
Radio-over-fiber (RoF)-based front haul architecture has attracted considerable attention for
fifth-generation (5G) cellular systems because of its cost effectiveness, however, it is …

A numerical assessment of an effective envelope-tracking semiconductor optical amplifier design for coherent-optical OFDM transmission

JC Ortiz-Cornejo, P Morel, S Azou… - Optics Communications, 2020 - Elsevier
The inherent nonlinear effects associated to Semiconductor Optical Amplifiers (SOAs) may
translate into a transmission performance loss for non-constant envelope modulation …

Wide band digital predistortion using iterative feedback decomposition

A Shokair, A Beydoun, DKG Pham, C Jabbour… - … Integrated Circuits and …, 2019 - Springer
This paper presents a new digital predistortion (DPD) technique for wide band applications.
Digital predistortion is the most useful linearization technique to reduce power amplifier (PA) …

Optimisation of the key SOA parameters for amplification and switching

A Abd El Aziz, WP Ng, Z Ghassemlooy, M Aly… - 2008 - nrl.northumbria.ac.uk
Wireless Sensor Networks (WSN) are composed of small, low cost, resource-constrained
computing nodes equipped with low power wireless transceivers. Generally, they are …