Top-Hat Beam Shaping Lenses

Single-piece focal beam shapers that transform a Gaussian laser beam into a round or square top-hat profile in the focal plane of nearly any focusing optics, such as an objective or F-Theta lens. Each lens is designed for a fixed input beam diameter (@1/e²) and a specific wavelength, and can be placed at nearly any position in the beam path. Top-hat spots have a long depth of focus with nearly constant peak intensity. Series include FBSR (round), FBS2 and FBSL (square), AR coated for common laser wavelengths.