DeepCleave is a Diffractive optical module used to focus a single mode Gaussian input beam into a tight spot with ~ 1.8 um waist size at constant peak power along an increased depth of focus (DOF) region, ranging typically from 0.25-3 mm. The obtained focused spot is equivalent to a 0.35 objective NA, making DeepCleave a complete optical solution with no need for additional high NA objectives or other high cost optics.