Patent ID: 11522331

Abstract:
A tip/tilt/piston (“TTP”) MEMS MMA is used to provide coherent beam combination (CBC) such that the combined beam behaves as if it were emitted from a single aperture laser, but with higher brightness than can be obtained from an individual laser. Piston actuation of the mirrors is used to adjust the phase of individual amplified laser beams and maintain a zero phase difference across all of the amplified laser beams. Tip/Tilt actuation of the mirrors is used to steer the phase-adjusted amplified laser beams to form a coherent output laser beam. Additional TTP actuation can be used to oversample and superimpose Adaptive Optics correction or focusing/defocusing on the beam. A multi-spectral system may be implemented with a common MEMS MMA to produce a spectrally beam combined, multi-channel coherent laser beam.