Effects of fiber chromatic dispersion on self-phase modulation based all-optical regenerator

Aiming at the all-optical regeneration based on self-phase modulation effect(SPM) in fiber, the effect of the chromatic dispersion on the transfer function and Q factor improvement of the regenerator was analyzed, as well as the interaction between chromatic dispersion and SPM. The method to improve the plateau of transfer function via changing the segments of fiber in the regenerator was proposed. The numerical results show that chromatic dispersion will suppress the spectra broadening caused by SPM and reduce the Q factor improvement in the all-optical regenerator. For fibers with different parameters such as dispersion, nonlinear coefficient, length and so on, the performance of the regenerator will keep basically unchanged if the ratio of the product of dispersion and fiber length to t