W-shaped solitons generated from a weak modulation in the Sasa-Satsuma equation

Abstract

We revisit on rational solution of Sasa-Satsuma equation, which can be used to describe evolution of optical field in a nonlinear fiber with some high-order effects. We find a striking dynamical process which involves both modulational instability and modulational stability regimes, in contrast to the rogue waves and W-shaped soliton reported before which involves modulational instability and stability respectively. It is demonstrated that stable W-shaped solitons can be generated from a weak modulation signal on continuous wave background. This provides a possible way to obtain stable high-intensity pulse from low-intensity continuous wave background.

References in corpus (5)

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Cited by in corpus (7)

• Stable Soliton Excitations in Modulational Instability Regime with the Fourth-order Effects
• Optical soliton solutions of the Biswas-Arshed model by the $\tan (⊝/2)$ expansion approach
• Localized excitations and interactional solutions for the reduced Maxwell-Bloch equations
• Bubbles and W-shaped solitons in Kerr media with fractional diffraction
• Partial-rogue waves that come from nowhere but leave with a trace in the Sasa-Satsuma equation
• Rogue waves of Ultra-High Peak Amplitude: A Mechanism for Reaching up to Thousand Times the Background Level
• Controllable generations of several nonlinear waves in optical fibers with third-order dispersion