The effect of linear absorption on the dynamics of an initial pulse propagating through a weakly nonlinear medium under conditions of soliton formation is examined in this paper. Stability of process of decomposition of the initial pulse is demonstrated by numerical methods. The effect of confluence of soliton-shaped pulses into which the initial pulse decomposes resulting in a self-compression followed by a spatial separation of soliton-shaped pulses is discovered. Some peculiarities of this phenomenon including its threshold character with respect to the initial pulse duration are discussed.
1. E.V. Lugin, and A.V. Shapovalov, Izv. Vysch. Uchebn. Zaved. SSSR, Fiz. No. 9, 102 (1987); ibid., No. 2, 36 (1989).
2. V.A. Donchenko, M.V. Kabanov, E.V. Lugin, A.A. Nalivaiko, and A.V. Shapovalov, Atm. Opt., 1, No. 1, 67 (1988).
3. G.M. Zaslavskii and R.Z. Sagdeev, Introduction to Nonlinear Physics (Nauka, Moscow, 1988).