A study of optical solitons with Kerr and power law nonlinearities by He's variational principle

This paper studies optical solitons, in presence of perturbation terms, by the aid of He's variational principle. The inter-modal dispersion, self-steepening and nonlinear dispersion are all treated as perturbation terms. Both Kerr law as well as power law nonlinearities are considered in this paper. [DOI: 10.2971/jeos.2009.09050]