NONLINEAR-THEORY OF SOLITON-INDUCED WAVE-GUIDES

We develop a nonlinear theory of soliton-induced waveguides that descr ibe a finite-amplitude probe beam guided by a spatial dark soliton in a saturable nonlinear medium. We suggest an effective way to control t he interaction cf these soliton-induced waveguides and also show that, in sharp contrast with scalar dark solitons, the dark-soliton wavegui des can attract each other and even form stationary bound states. (C) 1998 Optical Society of America.