Radio-over-Fiber Dual-Parallel Mach–Zehnder modulator system for photonic generation of Millimeter-Wave signals through two stages

In this work, we presented a radio-over-fiber (ROF) access network through two modulation stages for the generation of multiple millimeter wave (mm-wave) signals with frequencies 20, 40, 60 and 80 GHz transmission rate 10 Gbps as function variation link distance signal power. The specific purpose paper was to design investigate RoF system based on mm-wave in order implement simple effective system. stage 1, there are modulators parallel (MZMa MZMb) called dual-parallel Mach–Zehnder modulator (DP-MZM) 2 is only one (MZMd), connected three pulse generators: Non-Return-to-Zero (NRZ), Return-to-Zero (RZ) Gaussian, which were selected individually each simulation optisystem software. A single-mode fiber (SMF) optical filter Gaussian (GOF) an erbium-doped amplifier (EDFA) also used send base stations (BSs). numerical analyzes results eye diagrams showed excellent bit error (BER) quality factor (Q-factor) values, proved good performance proposed RoF- DP-MZM system, encoding formats used, able generate 3-tupling wireless accesses.