We show that a soliton of the nonlinear Schrödinger equation perturbed by filter losses and/or the finite gain bandwidth of amplifiers can be kept stable by saturable absorbers with a relaxation time much longer than the width of the soliton. This provides for ultrashort pulse generation with a slow saturable absorber only and may have possible applications in the stabilization of soliton storage rings.
© 1995 Optical Society of America
Original Manuscript: July 25, 1994
Published: January 1, 1995
F. X. Kärtner and U. Keller, "Stabilization of solitonlike pulses with a slow saturable absorber," Opt. Lett. 20, 16-18 (1995)