A solid-state laser with a filter operating under conditions of overlap of the saturation stages of the active medium and the nonlinear absorber, with large amplification factors of the active medium, is considered. It is shown that the superliminesence arising under these conditions, which reduces the need for precise maintenance of the optimum level of pumping, may facilitate an increase in the probability of obtaining stable ultrashort pulses with high contrast.
Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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