DEVICE, LASER SYSTEM AND METHOD FOR COMBINING COHERENT LASER BEAMS

摘要

The invention relates to a device (16) for combining a number N of coherent laser beams (3.1,..., 3.N), comprising: at least N-1 phase setting apparatuses (6.1,..., 6.N) for each setting the phase of one of the coherent laser beams (3.1,..., 3.N), and a beam combination apparatus (10) for combining the coherent laser beams (3.1,..., 3.N) in order to form at least one combined laser beam (12). In order to form the at least one combined laser beam (12), the beam combination apparatus (10) has a micro-lens assembly (11) having at least two micro-lens arrays (17a, b). The invention further relates to a laser system, comprising: at least one laser source for producing the number of coherent laser beams (3.1,..., 3.N), a number of emission surfaces (8.1,..., 8.N) for emitting the number of coherent laser beams (3.1,..., 3.N), and a device (16) described above for combining the number of coherent laser beams (3.1,..., 3.N) to form at least one combined laser beam (12). The invention further relates to an associated method for combining a number of coherent laser beams (3.1,..., 3.N).