Multilocalization of interference fringes in the Mach-Zender interferometer

The phenomenon of multiple localization in a Mach-Zender interferometer ill uminated by a system of incoherent equidistant linear sources is studied. T he relation between multilocalization and diffraction at a grating of perio d equal to the spacing between the sources composing the illumination syste m is analysed. Using the former relation an adjustment method is developed for interferometers of separated beams. This method enables the interferenc e fringes at the different focalization planes to be seen without readjusti ng the alignment. This enables to observe perturbations at different planes with the pimple focalization of the camera.