Incoherently coupled spatial soliton pairs in two-photon photorefractive media
双光子光折变介质中的非相干耦合空间孤子对

The coupling of two mutually incoherent optical beams with the same polarization and wavelength in two-photon photorefractive crystals is studied. It is shown that incoherently coupled dark-dark, bright-bright, and bright-dark soliton pairs are possible due to two-photon photorefractive effect.