Research of nonlinear phase shift-aware of physical layer impairment in intelligent optical network

With the increases of transmitted power and the escalating of transmission rate, the originally unobvious nonlinear effects in the optical fiber gradually affect the transmission quality adversely. So the nonlinear effects in the channels need to be perceived dynamically. In this paper, the nonlinear phase shift perceptual model is set up by analyzing the impacts on transmission quality caused by nonlinear effects and experimental simulation analysis. This model can comprehensively perceive the impairment done to the optical channels by nonlinear effects, the relationship of the nonlinear phase shift and the impacts on the transmission quality BER and the threshold of the nonlinear phase shift which could meet the quality requirements of optical communication is obtained after the simulation experiment for the model.