Performance monitoring on the orthogonality among the multi-subcarriers of an all-optical OFDM system

In this paper,all-optical OFDM transmitter and receiver with 5×20Gbit/s were simulated. We have analysed the principle of orthonogonal carrier generation, and obtained the optimal configuration for two, theree and five orthonogonal carriers. Through designing proper system parameters, the clearly eye diagrames were obtained. The BER curves of five orthonogonal signals were detected.