WAVEFRONT CONSTRUCTOR AND METHOD OF CONSTRUCTING WAVEFRONTS

摘要

A wavefront constructor (10) comprises a double balanced mixer (12) having an input (22) and an output (24), the input for receiving a wavefront matrix of complex number pixel values, wherein the double balanced mixer is configured for converting the wavefront matrix of complex number pixel values into a matrix of real number pixel values while suppressing from the matrix of real number pixel values (i) a self- interference of the input and (ii) a conversion carrier frequency fc, and outputting the matrix of real number pixel values on the output (24), wherein the output matrix of real number pixel values is suitable for use by a spatial light modulator (SLM) (14) for providing a corresponding reproduced wavefront (30).