The role of a sharp autocorrelation phase mask, called the bleached uniformly redundant array, for improving the spatial coherence in the far-field of partially coherent light sources is studied. It is shown both theoretically and experimentally that the input source correlation plays an important role in determining the amount of enhancement introduced by the phase mask.
© 1993 Optical Society of America
V. Boopathi, R. M. Vasu, and L. Kameswara Rao, "Enhancement of far-field spatial coherence of a partially coherent light source by source masking," Appl. Opt. 32, 4410-4414 (1993)