Patent ID: 9377611
Filing Date: 2016-06-28
CPC Classification: G02B,H01S

Claim Text:
1. An optical apparatus comprising: an optical fiber; a planar array of diode-laser-bar modules each thereof emitting a beam of laser-radiation, each of the beams characterized as having a fast-axis, a slow-axis, and a propagation-axis perpendicular to each other; a first plurality of turning-mirrors arranged to cause the beams from the diode-laser bars to propagate parallel to each other, aligned in the slow-axis direction, and spaced apart in the fast-axis direction to form a first combined beam having a fast-axis length and a slow-axis width; a second plurality of turning-mirrors arranged to divide the first combined beam into a plurality of beam-slices, each thereof having a slow-axis width less than that of the first combined beam, and add the beam-slices in the fast-axis direction to form a second combined beam having a slow-axis width less than that of the first combined beam; and anamorphic focusing optics arranged to focus the second combined beam into the optical fiber, the anamorphic focusing optics having optical power for the slow-axis direction greater than that for the fast-axis direction of the second combined beam.