Finite-mode analysis by means of intensity information in fractional optical systems.
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.
Alieva
Tatiana
T
Technische Universiteit Eindhoven, Faculteit Elektrotechniek, Eindhoven, The Netherlands.
Bastiaans
Martin J
MJ