“…This causes pulse splitting in optical fiber, and the governing equations become vector-coupled equations. A wide variety of techniques are available, including the symmetry method [Kumar, et al 2019], the rational ( 𝐺 ′ 𝐺 )-expansion method [Akbar, 2019], the generalized ( 𝐺 ′ 𝐺 )expansion method [Foroutan, 2018], the rational fractional ( 𝐷 𝜁 𝛼 𝐺 𝐺 )-expansion method [Atwaty, 2021] have been formulated to achieve exact solutions of NLSE.…”