Space and frequency analyze of an LSI optical system with different input signals [articol]

Abstract

Our goal in this paper is to develop a calculus algorithm beginning from Optical Fourier Transform and then to generalize to optical linear shift invariant systems. We begin from the premise that an optical system can be seen like a black box with an input and an output. Our system property analyze can be made in space with the help of convolution and in frequency by multiplying specters, these operation are complementarily. Optical system also can be seen from the perspective of components which is made. So in our example we choose components which can made Optical Fourier Transform: a square aperture and a convergent lens.