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 <i>in situ</i>. We present the theory on which the method is based and the experimental results that we obtained by applying it in a convergent correlator.
© 2003 Optical Society of America
Claudio Iemmi, Alfonso Moreno, Josep Nicols, and Juan Campos, "Evaluation and correction of aberrations in an optical correlator by phase-shifting interferometry," Opt. Lett. 28, 1117-1119 (2003)