中国物理B ›› 2003, Vol. 12 ›› Issue (5): 502-506.doi: 10.1088/1009-1963/12/5/307

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A modified split-step Fourier method for optical pulse propagation with polarization mode dispersion

饶敏, 孙小菡, 张明德   

  1. Department of Electronics Engineering, Southeast University, Nanjing 210096, China
  • 收稿日期:2003-01-15 修回日期:2002-08-30 出版日期:2003-05-16 发布日期:2005-03-16
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60272048).

A modified split-step Fourier method for optical pulse propagation with polarization mode dispersion

Rao Min (饶敏), Sun Xiao-Han (孙小菡), Zhang Ming-De (张明德)   

  1. Department of Electronics Engineering, Southeast University, Nanjing 210096, China
  • Received:2003-01-15 Revised:2002-08-30 Online:2003-05-16 Published:2005-03-16
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60272048).

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摘要： 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.

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.

Key words: polarization mode dispersion, non-return-to-zero, return-to-zero, pre-chirped RZ

中图分类号:  (Propagation, scattering, and losses; solitons)

  • 42.81.Dp
42.81.Gs (Birefringence, polarization) 42.30.Kq (Fourier optics) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)