title: Finite-mode analysis by means of intensity information in fractional optical systems.
abstract: It is shown how a coherent optical signal that contains only a finite number of Hermite-Gauss modes can be reconstructed from the knowledge of its Radon-Wigner transform-associated with the intensity distribution in a fractional-Fourier-transform optical system-at only two transversal points. The proposed method can be generalized to any fractional system whose generator transform has a complete orthogonal set of eigenfunctions.
authors.affiliation: Technische Universiteit Eindhoven, Faculteit Elektrotechniek, Eindhoven, The Netherlands.
authors.forename: Tatiana
authors.initials: T
authors.lastname: Alieva
authors.forename: Martin J
authors.initials: MJ
authors.lastname: Bastiaans