SYSTEMS AND METHODS FOR MULTIPLE-BEAM LASER ARRANGEMENTS WITH VARIABLE BEAM PARAMETER PRODUCT

摘要

In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a plurality of radiation beams before the beams are coupled into an optical fiber.

主权项

1. A beam-parameter adjustment system and focusing system for receiving and altering a spatial distribution of a plurality of radiation beams from a plurality of beam sources and focusing the radiation with the altered spatial distribution onto an end face of an optical fiber, the radiation beams each having a polarization state and collectively having a spatial distribution, the system comprising:
a first optical element for splitting each of the radiation beams into a plurality of spatially displaced output beams, the splitting being based on the polarization states; focusing optics for combining the output beams onto the optical-fiber end face; and a second optical element for altering a polarization state of (i) at least one of the radiation beams and/or (ii) at least one of each plurality of output beams prior to combination thereof by the focusing optics, whereby the combined output beams have an output spatial distribution different from the spatial distribution of the radiation beams, the output distribution being determined by the polarization-based splitting.