Soliton Pair Propagation in Three-Level Unbalanced Medium

I. E. Mazets, Boris G. Matisov, Igor V. Kazinets

В. В. Козлов, Evald E. Fradkin, D. ter Haar

Sukanya Burman, Asesh Roy Chowdhury

Caroline C. D. Silva, D. P. Caetano

The coherent propagation of a pair of matched pulses in a doped two-mode nonlinear dispersive waveguide is investigated, where the dopant is modeled by a V-type three-level system. Relations involving the parameters of the pulses and the propagation medium that allow us to observe the formation of coupled bright solitons are derived. The analytical result is verified by numerically solving the propagation equations together with the evolution of the three-level system. The numerical results show a stable propagation of the pair of pulses corroborating the theoretical result.

Nadia Boutabba, Hichem Eleuch

We consider two atomic transitions excited by two variable laser fields in a three-level system. We study the soliton-pair propagation out of resonance and under thermal bath effect. We present general analytical implicit expression of the soliton-pair shape. Furthermore, we show that when the coupling to the environment exceeds a critical value, the soliton-pair propagation through three-level atomic system will be prohibited.

Ashat M. Basharov, Andrei I. Maimistov