On-axis joint transform correlation based on the interfereometric acquisition of the output plane

摘要

In this work we propose a method to obtain single centered correlations with an optical setup based on a joint transform correlator. This approach is a modification of a previous procedure that required displaying devices with a full 2 pi phase modulation. The displaying requirements are less restrictive than before, allowing the use of many modulators and configurations. This new method is based on a binary power spectrum and it needs an interfereometric process to obtain a single detection peak. STo validate our new procedure, we propose an optical setup and we present the experimental results achieved.