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.