Dynamic coherent beam combining based on a setup of microlens arrays
Proceedings of SPIE(2020)
摘要
A novel optical concept is introduced with standard components for highly efficient coherent beam combining a system of (NxN) beams. In a proof-of-principle experiment a well-defined setup with microlens arrays (MLAs) is used to create a beam matrix of 5x5 beams. For the combination step the same setup is employed, and the created 25 beams are combined. A combination efficiency above 90% is achieved. Furthermore, the concept allows for dynamic beam combination, i.e., the resulting number of beams and corresponding positions can be controlled by the absolute phases of the array of input beams. A proof-of-principle experiment shows excellent agreement with the model.
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关键词
Coherent beam combination,Ultrashort pulses,Ultrafast optics,Beam steering,Beam shaping,Microlens arrays
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