Acousto-optic solitons in fibers

It is shown that the deceleration of light pulses down to the velocity of a sound value can be realized in a case of unidirectional parametric interac tion of two electromagnetic waves with an acoustic one in the regime of for ming three wave acousto-optic solitons. This nonlinear acousto-optic intera ction can be realized in long distance systems like fibers. As the result o f such an interaction, two types of acousto-optic envelope solitons can pro pagate in fibers. Modulation of the amplitude of the electromagnetic pump w ave can control the soliton velocity.