Combo optical soliton and rogue wave solutions of the time fractional
perturbed Radhakrishnan-Kundu-Lakshmanan model
Abstract
In this paper, we apply the
$\tan(\circleddash/2)$ expansion and the
Kudryashov general approaches to the time fractional perturbed
Radhakrishnan-Kundu -Lakshmanan (RKL) equation. These integration
schemes provide a number of optical soliton solutions of the model. The
solutions registered with constraint conditions on the parameters that
follow their existence criteria. To the constraint conditions, the
solutions offer various transmission signals through optical fibres,
such as double periodic optical solitons, combo optical periodic and
rogue waves, combo periodic and shock waves, combo periodic and
solitons, and combo double singular solitons. Moreover, after
interaction of rogue and periodic waves, it is shown that the rogue
waves are going to diminish after a certain time keeping periodic nature
of the interaction. In fact, interaction of periodic and rogue waves
produces periodic rogue type breather waves, that indicates the
amplitude of the rogue waves gradually decreases, and vanishes after a
certain time. Some dynamical signals are plotted in the graphs by
picking suitable values on the parameters.