Abstract

In correlation filtering a spatial light modulator (SLM) is usually modeled as affecting only the phase or only the amplitude of light. Usually it is a one-parameter combination of phase and amplitude that correctly describes the action. We develop an integral equation as a necessary condition that includes the phase and amplitude cross-coupling while optimizing a correlation filter. The phase-only filter is shown as a special case. A technique for solving the integral equation is outlined for a phase-mostly SLM.

© 1988 Optical Society of America