The folder contains all the .fig files used for the figures presented in the paper "Extraordinary" modulation instability in optics and hydrodynamics. The files are both experimental and theoretical figures in optics (space-time evolutions of phase and power, signal and pump evolutions, and phase evolution for modulation frequencies of 34, 37 and 40 GHz) and in water waves (space-time evolutions of water wave elevation, spectra).