Mourad Menif

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Providing ultra high-speed end-to-end connectivity in core optical networks while satisfying the requirements for quality of service is a topic of intense research. In an optical network, a connection is set up to carry a data signal via an all-optical channel (lightpath) from its source to destination nodes. The analog nature of the signal transmission(More)
In this paper, we review, first, the different noise terms involved in amplified and filtered spontaneous emission detection using the standard beating theory (or the semi-classical field expansion theory) of the noise in optical amplifiers. We derive BER calculations using the following approaches: 1) non-ideal electrical and optical filters combined with(More)
In this paper, we present and investigate a novel method for modulation formats recognition for radio-over-fiber (RoF) systems. The technique uses the artificial neural network (ANN) in conjunction with the features of asynchronous amplitude histograms of the detected signals at high bit rates using direct detection. The use of ANN method for this purpose(More)
In this paper, we investigate the generation of ultra-flat Optical Flat Comb Source (OFCS) using an asymmetrically driven Dual Arm Mach-Zehnder modulator (DA-MZM). A modified simulated annealing-based optimization method is applied to derive the necessary ranges for which the comb source is ultra-flat (less than 1 dB ripple) over 2, 4, 8, 16 and 32 carriers(More)
Next Generation Networks (NGN) are based on the coexistence of heterogeneous systems delivering diverse services and assuring high data rates. Small cell systems (Pico-cells and femto-cells) based on Radio over Fiber (RoF) networks are a booming technology since they densify the network, burst the network capacities and increase the system throughputs. This(More)
This paper analyses the spectral efficiency of Optical Code Division Multiple Access (OCDMA) system using Fiber Bragg Grating (FBG). We consider three configurations of OCDMA system namely DS-OCDMA (Direct Sequence-OCDMA), SAC-OCDMA (Spectral Amplitude Coding-OCDMA), FFH-OCDMA (Fast Frequency Hopping-OCDMA). The system performances are evaluated by taken in(More)
In this paper, we investigate an optical multicarrier source to achieve 160 Gb/s by wavelength using Polarization Multiplexing-Differential Quadrature Phase Shift Keying (POLMUX-DQPSK) and Dual Carrier-Differential Quadrature Phase Shift Keying (DC-DQPSK) with 33RZ (Return-to-Zero) pulse carving and coherent detection. The optical multicarrier source is(More)
Providing high data rates and wide bandwidth applications are the most important challenges that mobile systems and radio networks are trying to accomplish. Radio over Fiber-RoF systems is a promoting research field since it benefits of Passive Optical Network (PON) advantages and unlicensed large bands in 60 GHz millimeter band (57-64GHz). In this study,(More)
A novel way to generate asymmetric optical comb sources is presented. Optical comb sources are an essential component of Terabit orthogonal frequency-division multiplexing (OFDM) and wavelength division multiplexing-Nyquist (WDM-Nyquist) systems. Each arm of the modulator is excited with the linear combination of two sine waves. An asymmetric output(More)
Next generation Optical Networks become a topical issue that requires much researcher's interest especially the improvement of last miles of the optical networks (access network). Radio over fiber technology fulfills with heterodyne optical networks needs since it answers to wideband applications requirements and meets high capacities networks. The(More)