Abstract: A hybrid transmit and receive array is provided. The hybrid transmit and receive array can include an array of microlenses positioned at a distance d from an array of lasers, the array of microlenses having one element for each laser in the array of lasers. The hybrid transmit and receive array can include a plurality of diffractive optical elements positioned at the distance d from the array of microlenses, each diffractive optical element positioned in overlap regions of the lasers in the array of lasers, each diffractive optical element causing at least some of the light in respective the overlap region to reflect back into its neighbors to cause self-locking of the array of lasers.

Abstract: A laser system may include a laser array comprising a plurality of laser array emitters and a seed laser. The seed laser may be positioned on and directed toward an emitting side of the laser array or may be optically coupled to the plurality of laser array emitters by a waveguide bordering the laser array. The seed laser may be configured to emit a seed beam that interferes with one or more array beams emitted by one or more of the laser array emitters and locks the one or more array beams to a phase of the seed beam. An adjustable micro-lens array positioned on an emitting side of the laser array may enable laser array beams to be steered to a target location.