Journal of Optics

, Volume 35, Issue 3, pp 125–135 | Cite as

Further Investigations for Optical Kerr Effects Using Split Step Fourier Method for Self Phase Modulation and Dispersion



In this paper, we use one of the most accurate method, the split-step numerical method(SSFM) to solve the Schrodinger wave equation and analyze dispersion and self phase modulation effects. SPM process produces new frequency components as the pulse propagates through the fiber. The new frequency components are positive and linear frequency chirp. In the anomalous regime chromatic dispersion produces negative frequency chirp and it tends to negate the positive chirp induced by SPM. Consequently, interacting between SPM and dispersion results in the reduction of the pulse broadening. On the other hand, in the normal dispersion region, chromatic dispersion also generates positive linear frequency chirp. Therefore, the effect of the pulse broadening is much more accelerated since the pulse has been spread out by both of SPM and dispersion.


Dispersion Self phase modulation Split Step Fourier method Nonlinear Schrodinger wave equation 


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Copyright information

© Optical Society of India 2006

Authors and Affiliations

  1. 1.Guru Jambeshwar UniversityHisar HaryanaIndia
  2. 2.Thapar Institute of Engineering and TechnologyPatiala, PunjabIndia

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