Abstract

Generation of fundamental solitons at a high repetition rate in optical fibers is of great interest. Existent at present time methods permit to generate solitons at about 100 MHz repetition rate (see,e.g. review [1]). Hasegava [2] suggested a method for the generation of a train of pulses with the high repetition rate based on the effect of modulation instability of cw radiation in fibers. Tai et al.[3]were the first to realized this method. However, this method does not permit to generate a stable train of uninteracting solitons because of pedestal existence between the pulses. Iwatsuki et al.[4] observed soliton effects in fibers using 2.6 GHz gain-switched 1.3 μm laser diode. In [5,6] we suggested a method for the generation of a high repetition rate (up to THz range) stable train of practically uninteracting solitons. The method is based on the adiabatic amplification of a sin-modulated cw signal in a fiber (instead of amplification can be used fibers with slowly decreasing dispersion). In present paper we report the first experimental realization of this method.

© 1989 Optical Society of America