Abstract
A Darboux-Backlund transformation is used to obtain a positon type solution of the nonlinear equations describing the propagation of coupled nonlinear optical pulses.This form of the positon solution is then compared with that obtained by the special limiting procedure applied to a two-soliton solution. It is observed that though the algebraic form of the two solutions is different yet both of these have singularities and the position of the singularities remains on the similar curve in the (x, t) plane. We also depict the form of these solutions graphically. Finally, it may be added that the method of Darboux-Backlund transformation is convenient for generating more than one-positon solution. PACS numbers: 02.30.+g, 52.35.Sb, 52.35.Mw
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