We consider a class of random light beams, which are generated by inserting an asymmetric Schell-model beam into a wavefront-folding interferometer. Typical propagation behavior of such optical beams modulated by several legitimate complex coherence states has been investigated. In certain cases, these beams exhibit novel rotationally symmetric intensity patterns with rectangular or lattice-like lobes, and the pattern and location of each lobe can be controlled by adjusting the source coherence parameters. Besides, beam characteristics can be flexibly modulated by varying the phase delay between the two paths of the interferometer. Our results may be applied in free-space optical communication.

我们考虑一类随机光束，它们是通过将非对称 Schell 模型光束插入波前折叠干涉仪而产生的。已经研究了由几种合法的复相干状态调制的此类光束的典型传播行为。在某些情况下，这些光束表现出具有矩形或格状波瓣的新型旋转对称强度模式，并且可以通过调整源相干参数来控制每个波瓣的模式和位置​​。此外，可以通过改变干涉仪两条路径之间的相位延迟来灵活地调制光束特性。我们的结果可以应用于自由空间光通信。