Characteristics of self-trapping of partially coherent beam
部分相干光光束的振荡自陷特性

Using the mutually coherent function, we study the self-trapping of circlar partially coherent beam. The initial condition of the beam and the nonlinearity of the media decide the propagation properties of the beam. The spatial variation period of the beam is obtained. And we find that the transverse coherence property of the partially coherent beam evolves periodically with the distance. Our analysis can also be etended to the elliptical partially coherent beam.