Performance Evaluation of NRZ Format in High-Speed Dispersion Management Transmission Systems

摘要

In this paper the performance of single channel 40 Gb/s non-return-to-zero (NRZ) signal is studied over standard configured dispersion-management transmission systems (1*80 km/6*80 km). Firstly, the optical and electrical filter bandwidth of receiver is optimized according to the power penalty. Then the nonlinear characteristic is considered. The pre- and post-compensating dispersion is discussed too. We get the conclusion that the optimal optical bandwidth will increase with the increase of SMF input power because of the fiber non-linear effects and the appropriate pre-compensating dispersion will improve the transmission performance and dispersion tolerance.