Steady-state 2π pulses in an amplifying medium with polarization relaxation and nonresonant linear losses

An analysis is made of the propagation of 2π pulses in an amplifying medium exhibiting polarization relaxation and nonresonant linear losses. It is shown that the combined influence of such relaxation and losses may stabilize 2π pulses. Changes in the pulse parameters and their asymptotic values are considered. The distance in which there is a characteristic change in the pulse parameters is estimated for ruby laser radiation.