Numerical Suppression of Linear Effects in an Optical Cdma Transmission

Fiber characteristics play a critical role in the propagation of short optical pulses. To implement a temporal Optical Code-Division-Multiple-Access (OCDMA) solution, it is necessary to take into account the linear and nonlinear effects resulting from the propagation inside the fiber. In this paper, we study the importance of these phenomena along with the performance of the network. This study is intended to improve the OCDMA technique by numerically suppressing the linear effects in a Single-Mode Fiber (SMF). For this goal, Fractional Step Method (FSM) is adapted to predict the deformation of Gaussian signals introduced by the support and to reconstitute them after propagation inside the SMF. To evaluate our study, these phenomena are analyzed starting from the case of a single Gaussian pulse, going through the case of perfectly-synchronized Gaussian signals for OCDMA transmission and ending with the case of asynchronous Gaussian signals.