Suppression of the Phase Induced Intensity Noise based on the Dynamic Cyclic Shift code for SAC-OCDMA access networks

摘要

A new code family for Spectral Amplitude Coding Optical Code Division Multiple Assess (SAC-OCDMA) system has been proposed in this paper. The new code family we call it Dynamic Cyclic Shift (DCS) code. The DCS code has many advantages. However, the DCS code can be generated without code parameter limitation. In addition, the shorter code length and variable cross correlation (λc ≤ 1) of the DCS code can improve the SAC-OCDMA system performance. The mathematical results and simulation analysis shows that the DCS code in terms of the Bit-Error-Rate (BER) and eye diagram can effect on the suppression of Phase Induced Intensity Noise (PIIN). The simulation analysis carried the data rate 10 Gbps for 20 km with low BER value comparing with former SAC-OCMA code systems.