Patent ID: 8792526
Filing Date: 2014-07-29
Classification: H01S

Abstract:
1. A system comprising: a master oscillator for generating a primary laser signal; a beam splitter array for splitting the primary laser signal into a plurality of secondary laser signals; a plurality of amplifiers to amplify the plurality of secondary laser signals and generate a plurality of amplified laser signals; a plurality of actuators to adjust a position, a beam angle, a path length, and a phase of the plurality of amplified laser signals; at least one control module to control the plurality of actuators that adjust the position, the beam angle, the path length, and the phase of the plurality of amplified laser signals; a combiner that receives the plurality of amplified laser signals from the plurality of actuators to generate a combined laser output signal; a phase detector that samples the combined laser output signal to generate feedback for the control module to control the phase; and at least one filter that samples the combined laser output signal to generate a plurality of phase errors as feedback for the control module to control at least one of the position, the beam angle, or the path length for the plurality of amplified laser signals, the at least one filter comprising a spectral filter that samples the combined laser output signal to generate the plurality of phase errors for the feedback to the control module to control a path length for at least one of the plurality of amplified laser signals.