Fig. 1. Intensity FWHM of bright solitons versus A.

Fig. 2. (a) Sum of squares of deviations from mean D as a function of A₂ for the cases of θ = π (solid curve) and θ = 0 (dashed curve). Panel (b) is enlargement of (a) in the vertical direction.

Fig. 3. Intensity contours showing the propagation dynamics of two out of phase solitons for A₁ = 0.1 and A₂ = 0.1 (a), 0.163 (b), 0.176 (c), 0.181 (d), 0.214 (e), 0.231 (f), 0.251 (g), 0.258 (h), 0.28 (i).

Fig. 4. Relation (a) between propagation distance ξ and the spacing, and (b) between ξ and the peak intensity for two anti-phase solitons.

Fig. 5. Intensity contours showing the propagation dynamics of two in-phase solitons for A₁ = 0.1 and A₂ = 0.1 (a), 0.139 (b), 0.196 (c), and 0.253 (d).

Fig. 6. Relation (a) between propagation distance ξ and the spacing, and (b) between ξ and the peak intensity for two in-phase solitons.