Figure 2: DFrFT of classical light.
From: Implementation of quantum and classical discrete fractional Fourier transforms
(a) Transformation of a Gaussian input into a Gaussian profile of larger width along the evolution in the Jx-array. The FT is obtained at Z=π/2. The experimental data (blue crosses) is compared with the numeric FrFT (red curves). (b) A shifted input Gaussian profile evolves towards the centre of the array and acquires the same width as in a.
