Patent ID: 7970040

Claim:
An apparatus comprising: a plurality of lasers comprising a plurality of laser paths; an incoherent combining beam director in said plurality of laser paths; a first plurality of optical elements free of a spectral combining grating in said plurality of laser paths between said plurality of lasers and said beam director, and one of adaptive optics and tip-tilt compensation optics, wherein said beam director comprises a second plurality of optical elements which one of individually and collectively focus and direct said plurality of laser beams to a target, each optical element of said second plurality of optical elements individually focusing and directing a respective laser path of said plurality of laser beams to the target, wherein said second plurality of optical elements comprises a plurality of refractive optical elements, and a plurality of individually controllable steering mirrors, said one of adaptive optics and tip-tilt compensation optics controlling said plurality of individually controllable steering mirrors to correct for wander of a beam centroid associated with turbulence produced by air density fluctuations, wherein each steering mirror of the plurality of individually controllable steering mirrors corresponds to the respective laser path.