The Asterism Generator is part of an upgrade to the Keck observatory’s adaptive optics system. The instrument uses an assembly of custom-built prisms to produce an asterism of 4 Laser Guide Stars (LGS) from a single laser beam.  The LGS asterism will provide AO correction for science targets within an increased field of view. The optic beam splitter assembly containing the custom prisms is capable of rotation and moving in and out of the beam to allow single beam functionality. The separated beams are steerable with piezo actuators. OMP was in charge of the whole system design. This includes all technical work and tests performed during the preliminary and detailed design phases. OMP is the prime contractor for the whole project.