BEAM-FANNING NOVELTY FILTER WITH ENHANCED DYNAMIC PHASE RESOLUTION

摘要

We demonstrate a novel method to enhance the phase resolution of a barium titanate beam-fanning novelty filter by means of an external phase shift in one part of the signal wave. The new technique is described theoretically on the basis of the coupled-wave theory. Experimental results are presented to demonstrate the behavior and the advantages of the novel device for the evaluation of spatial and temporal phase changes in incident signal waves. (C) 1995 Optical Society of America. [References: 6]