Specific features of generation of the quasi-Schrödinger soliton in the CW mode-locked solid-state laser with a semiconductor saturable absorber

The mechanism of mode-locking in the cw solid-state laser with the saturable semiconductor switch caused by the formation of the quasi-Schrödinger soliton is investigated on the basis of the self-consistent laser field theory. The possible regimes of the quasi-soliton destabilization are studied: the sharp transition from the femtosecond to picosecond generation (“the picosecond collapse”), the self-oscillation instability, as well as the breakdown of the pulsed generation. The existence of multistable states and hysteresis phenomena upon the variation in the group-velocity dispersion and the pump power are shown.