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Beam shaping by spatial coherence modulation based on spatial coherence wavelets
Authors:Rafael Betancur  John Restrepo  Roman Castaneda  
Institution:aPhysics School, Universidad Nacional de Colombia Sede Medellín A.A. 3840, Calle 59A, No. 63-20, Medellín, Colombia
Abstract:A novel technique for designing specific shapes of power distributions is presented. It bases on the modulation of the spatial coherence of the optical field in amplitude and phase. The modulating functions are synthesized from the phase-space diagram of the field, provided by the marginal power spectrum. Numerical results for the phase modulation of the complex degree of spatial coherence are presented. This beam shaping technique is suitable in applications that require specific shapes and sizes.
Keywords:Spatial coherence wavelets  Marginal power spectrum  Phase-space representation
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