An additive manufacturing device comprising: a laser source configured to generate a laser beam ; a build material holder configured to hold an additive build material ; at least one controllable deflector having a first scan rate; at least one acousto-optic deflector, AOD having a second scan rate faster than the first scan rate; and a controller configured to control the at least one controllable deflector and the at least one AOD to scan the laser beam relative to the build material holder to additively manufacture a workpiece in successive layers from the additive build material characterized in that the at least one AOD has a controllable output intensity, wherein the controller is configured to control the output intensity of the at least one AOD by attenuating the amplitude of a first order scan beam and a zero order dump beam , wherein the AOD is configured to divide the laser beam incident at an angle of θ BRAGG from the laser source into the first order scan beam , and the zero order dump beam , the AOD is further configured to selectively refract the laser beam at an angle of θ AOD , wherein the at least one AOD generates a Gaussian subpixel intensity profile at the work surface; and wherein the controller is configured to control the at least one AOD to define a flattened pixel intensity profile relative to the Gaussian subpixel intensity profile , wherein the flattened pixel intensity profile is formed through the summation of multiple iterations of the Gaussian subpixel intensity profile over time; and wherein the at least one AOD comprises first and second AODs arranged to operate at orthogonal angles. a laser source configured to generate a laser beam ; a build material holder configured to hold an additive build material ; at least one controllable deflector having a first scan rate; at least one acousto-optic deflector, AOD having a second scan rate faster than the first scan rate; and a controller configured to control the at least one controllable deflector and the at least one AOD to scan the laser beam relative to the build material holder to additively manufacture a workpiece in successive layers from the additive build material characterized in that the at least one AOD has a controllable output intensity, wherein the controller is configured to control the output intensity of the at least one AOD by attenuating the amplitude of a first order scan beam and a zero order dump beam , wherein the AOD is configured to divide the laser beam incident at an angle of θ BRAGG from the laser source into the first order scan beam , and the zero order dump beam , the AOD is further configured to selectively refract the laser beam at an angle of θ AOD , wherein the at least one AOD generates a Gaussian subpixel intensity profile at the work surface; and wherein the controller is configured to control the at least one AOD to define a flattened pixel intensity profile relative to the Gaussian subpixel intensity profile , wherein the flattened pixel intensity profile is formed through the summation of multiple iterations of the Gaussian subpixel intensity profile over time; and wherein the at least one AOD comprises first and second AODs arranged to operate at orthogonal angles. <EOS>