1. A 3-D depth camera system, comprising: (a) an illuminator, the illuminator comprises: (i) at least one superluminescent light-emitting diode; (ii) a collimating lens which captures light from the at least one superluminescent light-emitting diode to provide a collimated light beam; and (iii) a diffractive optical element which receives the collimated light beam, and creates a plurality of diffracted light beams which illuminate a field of view including a human target; and (b) an image sensor which creates a depth image of the human target using light from the field of view.