ACHROMATIC AND COMPACT OPTICAL INTERFEROMETER OF THE TRILATERAL SHIFT TYPE

摘要

Tree of lateral colorless variant and a compact optical interferometer ; Grating, it analyzed and optically coupled to the surface analysis of the wave front, which is disposed in a plane perpendicular to the light beam, the method of analyzing the wavefront of the light beam and the system. Different emerging beam of the grid is to generate an interference provided with a modified link the components of the wavefront being analyzed image. ; The method 2π / 3 between the second two-dimensional light intensity function, the two adjacent implemented by a grating having a hexagonal meshing surface S for transmitting a light beam so that analysis of a number of emerging beams arranged in a hexagonal meshing primary beam and it characterized in that the increase in the phase function to be implemented by a two-dimensional lattice having a hexagonal meshing surface S of introducing a phase shift of a value close to (modulo 2π).