Study on networks based on OCDMA-PON subsystem

In this paper, a new architecture of the networks based on the proposed optical CDMA based on PON (OCDMA-PON) is presented, the design of the Optical Line Terminator (OLT) and the Optical Network Unit (ONU) for the OCDMA-PON are studied. The performance of networks based on the OCDMA-PON is analyzed in detail. Its bit error rate (BER) performance, networks scalability and transmission performance of such a system are studied under consideration of the multiple user interference (MUI) and the difference noise contributions. As shown in the study, the number of ONU/ONT, the channel link length, the number of available codes and the optical component characteristics deeply impact both the scalability and the transmission performance of such a system. Simulation results indicate that the proposed scheme is feasible and that the novel design can improve the scalability and transmission performance of the optical access networks.

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