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Simulation and analysis of laser coherent combining system based on adaptive fiber optic collimator array

This paper reports a new method for piston and tilt control in the laser coherent combining system. Adaptive fiber optics collimators have been developed to correct beam-tilt. The SPGD algorithm is employed to correct a given wavefront. The relative parameters which directly influence the algorithm's convergence are studied. The adaptive fiber optics collimator's working principle is confirmed.