LASER ARRAY SIDELOBE SUPPRESSION

摘要

A laser apparatus comprising an aperture module array including two or more aperture modules, each aperture module of the array being optically couple-able to a source of coherent electromagnetic radiation and configured to emit a beam of radiation received from the source. The apparatus emits a composite beam comprising beams emitted by the respective aperture modules and modulates at least one of the beams in power and phase relative to at least one other of the beams such that a desired non-uniform composite beam profile is provided.

主权项

1. A laser apparatus comprising:
an aperture module array including two or more aperture modules; each aperture module of the array being optically couple-able to a source of coherent electromagnetic radiation and configured to emit a beam comprising radiation received from the source; the apparatus being configured to:
emit a composite beam comprising beams emitted by two or more of the aperture modules, andmodulate in power and phase at least one of the beams emitted by the two or more aperture modules relative to a beam emitted by at least one other of the two or more aperture modules such that a desired non-uniform composite beam exit profile is provided that reduces the amount of energy distributed into sidelobes relative to the amount of energy that would be distributed into sidelobes if the composite beam were of the same emitted energy but had a uniform composite beam exit profile.