Diffractive Optical Elements: Reducing Zero Order and Improving Diffractive Efficiencies
Diffractive optics have made it possible to effectively shape and split beams. They are lightweight and compact and can be easily integrated into optical systems. Also, they can perform many optical functions in one element.
Diffractive optical elements (DOEs) have gone through advances that made them a standard component in laser material processing, structured light projection systems, as well as medical and aesthetic lasers. Improvements in DOE design and manufacturing processes have minimized undesired orders and zero order while enhancing uniformity and achieving higher diffractive efficiencies.
How Do DOEs Work?
These diffractive microrelief patterns manipulate the phase of an incoming laser beam to create a desired intensity profile in the far-field. Thus, they are characterize...
