A new architecture of all optical network based on tunable optical buffer and wavelength conversion using wide band semiconductors optical amplifier

Abstract

All optical networks (AONs) are considered as the future scenario for core networks. One of the major problems in AON is resources contention. Contention in optical networks arises when the same wavelength needs to use the same port at the same time. Packet contention can be solved via buffering. This paper demonstrates a tunable optical buffer with widely variable time delays using an array of uniform fiber Bragg gratings (FBGs) filter and tunable wavelength converters (WCs) using the wideband semiconductor optical amplifier (SOA) component. The simulation and optimization of the design is done by OptiSystem simulation software. The eye diagrams and results of maximum Q factor, BER, received power, noise figure and gain (dB) at receiver are illustrated for traditional optical buffering fiber delay line (FDL) and for proposed enhanced tunable optical buffer with dispersion compensator and EDFA. The proposed system reduces the fiber length used in the delay system by half. The proposed system illustrated in the below figure.