Fig. 2.

Cartesian to Hermite–Gaussian transformation using multi-plane light conversion. a 7 phase planes used to perform the transformation. b Total intensity of the first 210 modes in each plane. c Example of the evolution of the complex amplitude of the HG16,3 mode through the device. The physical width of these 7 masks is 15.344 mm (7 planes × 8 μm pixel pitch × 274 pixels). Although the same design can be scaled to other dimensions as discussed in Supplementary Note 8