Subaru is the 8.2-meter flagship telescope of the National Astronomical Observatory of Japan, located at the Mauna Kea Observatory on the Big Island of Hawaii. The name Subaru is Japanese for the Pleiades and has nothing to do with the car manufacturer. Subaru has used a laser guide star generated by a solid-state laser together with a solid-core photonic crystal fiber for beam relay since 2011. Now a multi-step upgrade program is underway with the goal of establishing a ground-layer adaptive optics system for particularly wide fields of view.
Credit: Subaru Telescope, NAOJ/S. Egner (picture shows the old solid-state laser)
Recent papers on AO upgrade:
2019 paper on Subaru AO projects
2019 paper on Subaru Laser Guide Star Facility
