Abstract
The propagation of a higher-order soliton in an ideal single-mode optical fibre under higher-order dispersion and higher-order nonlinearity is much affected by quintic nonlinearity, fourth-order dispersion and intrapulse Raman scattering. We use a compact split-step Padé scheme to numerically study the stabilisation of higher-order solitons by these effects in optical fibres. Our results show that the relative amplitudes of these two dispersive sideband waves, which originate from the fourth-order dispersion decrease or even eliminated by the increasing values of quintic nonlinear coefficient, in the presence of the intrapulse Raman scattering, and the higher-order soliton returns almost to its original shape.
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Acknowledgements
This work is in part a contribution to the Post Graduation of Physics and the Physics of Radiations and their Interaction with Matter laboratory (LPRIM), Department of Physics, Faculty of Matter Sciences, University of Batna 1, Hadj Lakhdar, Algeria.
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Smadi, M. Stabilisation of higher-order solitons by the compensation of quintic nonlinearity, fourth-order dispersion and intrapulse Raman scattering in optical fibres. Pramana - J Phys 96, 134 (2022). https://doi.org/10.1007/s12043-022-02379-y
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DOI: https://doi.org/10.1007/s12043-022-02379-y