OPTICAL DIAGRAM OF A PHASE DISTORTION METER OF OPTICAL WAVE FIELDS BASED ON A F light guide PLATFORM AND A SPATIAL LIGHT MODULATOR

摘要

The utility model relates to the field of optical instrumentation and relates to the optical circuit of the analyzer of the wave field of optical radiation. The analyzer includes a fiber-optic plane-parallel plate, diffractive optical elements located on the surface of the plate for input and output of optical radiation, a spatial amplitude light modulator, and matrix photodetectors. An amplitude light modulator is installed between the diffractive optical element, which carries out the output of radiation from the plate, and matrix photodetectors. The device is configured to dynamically output from the control computer the required computer-synthesized holograms (CSG) to the spatial amplitude light modulator. GCGs are “encoded” by certain wavefront aberrations based on the modes of the Zernike orthogonal circular polynomials to distinguish the indicated possible aberrations of the +1 and -1 order diffracting wavefronts of optical radiation and detect the presence of these aberrations in the form of points in the corresponding cells of the matrix photodetectors. The technical result consists in increasing the diffraction efficiency of the device. 1 ill.