Abstract

Parabolic pulse propagation has been observed in high gain optical fiber amplifiers with normal group velocity dispersion (GVD), ¹ and has been theoretically described in the infinite bandwidth regime using self-similarity techniques.' Since parabolic pulses are expected to find wide application in high power fiber transmission systems, the effect of a finite transition bandwidth must be included in a complete analysis. We present simulations of a realistic normal dispersion amplifier based on a generalized propagation equation modeling the amplifier transition with a complex Lorentzian gain profile and report a new stable solitary wave propagation regime in the high gain limit.

© 2002 Optical Society of America