Abstract A modified split-step Fourier method (SSFM) is presented to solve the coupled nonlinear Schr?dinger equation (CNLS) that can be used to model high-speed pulse propagation in optical fibres with polarization mode dispersion (PMD). We compare our approach with the SSFM and demonstrate that our approach is much faster with no loss of accuracy. We discuss the pulse distortion and system Q-factor of non-return-to-zero (NRZ), return-to-zero (RZ) and pre-chirped RZ (CRZ) formats in the presence of high PMD through this approach. The simulation results show that CRZ pulses are the most tolerant to high PMD values and the extinct ratio has a great impact on the transmission performance.
Received: 15 January 2003
Revised: 30 August 2002
Accepted manuscript online:
(Ultrafast processes; optical pulse generation and pulse compression)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60272048).
Cite this article:
Rao Min (饶敏), Sun Xiao-Han (孙小菡), Zhang Ming-De (张明德) A modified split-step Fourier method for optical pulse propagation with polarization mode dispersion 2003 Chinese Physics 12 502
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