Evaluation and correction of aberrations in an optical correlator by phase-shifting interferometry

摘要

We propose a new method for evaluating and correcting aberrations in a Vander Lugt correlator. The technique is achieved with liquid-crystal displays of the correlator and allows the task to be performed in situ. We present the theory on which the method is based and the experimental results that we obtained by applying it in a convergent correlator. (C) 2003 Optical Society of America. [References: 15]