Bright, dark, and singular solitons in optical fibers with spatio-temporal dispersion and spatially dependent coefficients

Abstract

Investigated in this work is the nonlinear Schrödinger equation with space-dependent parameters, which models the propagation of optical solitons in spatially inhomogeneous optical fiber with detuning, spatiotemporal dispersion, intermodal dispersion, and fiber gain or loss. Through the ansatz scheme, analytical bell, kink, and singular soliton solutions under certain coefficient constraints are obtained.

Keywords:

• Solitons
• spatiotemporal dispersion
• inhomogeneous optical fibers
• intermodal dispersion
• ansatz scheme

Acknowledgements

This first author (QZ) was supported by the Natural Science Foundation of Hubei Province of China [grant number 2015CFC891], and the fourth and fifth authors (AB and MB) were funded by Qatar National Research Fund (QNRF) [grant number NPRP 6-021-1-005].

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Natural Science Foundation of Hubei Province of China [grant number 2015CFC891], and Qatar National Research Fund (QNRF) [grant number NPRP 6-021-1-005].