MULTIMODE INCOHERENT SPATIAL SOLITONS IN LOGARITHMICALLY SATURABLE NONLINEAR MEDIA

We show that multimode incoherent spatial solitons are possible in log arithmically saturable nonlinear media. The mode-occupancy function as sociated with these soliton states is found to obey a Poisson distribu tion. Our analysis indicates that two approaches, i.e., the dynamic co herent density description as well as static self-consistent multimode method lead to exactly the same results. Closed form solutions are ob tained for (1 + 1)D as well as for (2 + 1)D circular and elliptical in coherent solitons.