Phase modulated domain walls and dark solitons for surface gravity waves

We report theoretical prediction of exact localized solutions for dynamics surface gravity waves, at the critical point kh=1.363, modelled by higher-order nonlinear Schrodinger equation. The model possess domain walls (kink solitons) and dark solitons modulated through different phase profiles. parametric domains are delineated existence soliton solutions. effect wave parameters have been discussed on amplitude waves. Our work is motivated Tsitoura et al. [1], experimental analytical observation deep water waves