Incoherently coupled screening-photovoltaic soliton families in biased photovoltaic photorefractive crystals

It is shown that the existence of incoherently coupled screening-photovolta ic soliton families is possible in biased photovoltaic photofractive crysta ls under steady-state conditions. These screening-photovoltaic soliton fami lies can be established provided the multiple incident beams have the same polarization and wavelength, and are mutually incoherent. Such soliton fami lies reduce to screening-photovoltaic soliton pairs when they contain only two components. Relevant examples are presented where the photovoltaic phot orefractive crystal is of the lithium niobate type.