title: Interferometric beam combination with discrete optics.
abstract: We explore the capabilities of discrete diffraction in phase retrieval problems and propose an innovative scheme exploiting a two-dimensional array of coupled waveguides to determine the phase and amplitude of the mutual correlation function between any pair of three telescopes of an astrointerferometer.
authors.affiliation: Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany. stefano.minardi@uni-jena.de
authors.forename: Stefano
authors.initials: S
authors.lastname: Minardi
authors.forename: Thomas
authors.initials: T
authors.lastname: Pertsch