Spatial coherence plays a major role in characterizing quasi-monochromatic,
partially coherent, optical signals. Here a fairly simple system for synth
esizing special cases of spatial coherence is proposed. The special cases,
called hybrid, include the case of total coherence in the x direction and,
simultaneously, total incoherence in the y direction. The optical setup is
based on a quasi-monochromatic, spatially coherent light source, such as a
laser, and a simple moving optical element. (C) 1999 Optical Society of Ame
rica. OCIS codes: 030.0030, 030.1640.