对双光子光折变晶体中两束偏振方向和波长都相同的互不相干光束的耦合进行了研究,预言了非相干耦合暗-暗、亮-亮及亮-暗双光子空间孤子对的存在.
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 photorefiactive effect.