title: Rogue-wave pattern transition induced by relative frequency.
abstract: We revisit a rogue wave in a two-mode nonlinear fiber whose dynamics is described by two-component coupled nonlinear Schrödinger equations. The relative frequency between two modes can induce different rogue wave patterns transition. In particular, we find a four-petaled flower structure rogue wave can exist in the two-mode coupled system, which possesses an asymmetric spectrum distribution. Furthermore, spectrum analysis is performed on these different type rogue waves, and the spectrum relations between them are discussed. We demonstrate qualitatively that different modulation instability gain distribution can induce different rogue wave excitation patterns. These results would deepen our understanding of rogue wave dynamics in complex systems.
authors.affiliation: Department of Physics, Northwest University, Xi'an 710069, China.
authors.forename: Li-Chen
authors.initials: LC
authors.lastname: Zhao
authors.affiliation: Department of Physics, Northwest University, Xi'an 710069, China.
authors.forename: Guo-Guo
authors.initials: GG
authors.lastname: Xin
authors.affiliation: Department of Physics, Northwest University, Xi'an 710069, China.
authors.forename: Zhan-Ying
authors.initials: ZY
authors.lastname: Yang
mesh_terms: D008962:Models, Theoretical; D017711:Nonlinear Dynamics