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Integrated Mach–Zehnder-Based Spectral Amplitude OCDMA on a Passive Optical Network

In this paper, we present our results on Mach-Zehnder-based spectral amplitude encoded optical code-division multiple access (OCDMA) in a passive optical network using a novel parallel spectral encoder/decoder. The modular construction of orthogonal code processors is shown along with operational settings. Simulation results are shown for an eight-user network scenario. The monolithic integration of a parallel encoder in an InP/InGaAsP material system is discussed whereafter static measurement results are given. Finally, several options are discussed to increase network flexibility and optical transparency.