Structure analyzer and spatial coherence of light beams

摘要

Structure analyzer and spatial coherence of light beams. # The invention comprises an electro-optical device programmable and method to characterize fully and accurately both beams in the visible range, near infrared and near ultraviolet, consistent as partially coherent, solving the problem of characterizing the latter. # the device consists of four cylindrical lenses housed in rotary motorized mounts and a digital camera (CCD / CMOS). They are generated and acquired projections Wigner distribution of the beam in real time, from which it is characterized. These projections serve to classify the beam under study by symmetry and consistency properties and extract information from its spatial structure. This requires a computer is used. The invention has industrial application in optical telecommunications systems imaging and lithography, in manufacture lasers, LED, etc.