Design and Performance Analysis of Eight Users 2-D and Spectral Phase Encoding O-CDMA time Domain Systems

In optical code division multiple access (OCDMA) system, many users share the same transmission medium by assigning unique pseudo-random optical code (OC) to each user. In this paper the performance of 2-D and Spectral Phase Encoding O-CDMA System in time domain is compared 2.5Gb/s for 60 km length.SPE O-CDMA systems results indicate significant improvement in term Beat Error Rate (BER) and very high quality factor in the form of Quality of Service (QoS) at -18dBm received power. In our analysis, we have used Pseudo Orthogonal (PSO) code and specific phase shift code . The simulations are carried out using OptSim (RSOFT).