Mn. Vinoj et Vc. Kuriakose, Multisoliton solutions and integrability aspects of coupled higher-order nonlinear Schrodinger equations, PHYS REV E, 62(6), 2000, pp. 8719-8725
Using Painleve singularity structure analysis, we show that coupled higher-
order nonlinear Schrodinger (CHNLS) equations admit the Painleve property.
Using the results of the Painleve analysis, we succeed in Hirota bilineariz
ing the CHNLS equations for the integrable cases. Solving the Hirota biline
ar equations, one soliton and two soliton solutions are explicitly obtained
. Lax pairs are explicitly constructed.