500-W Average Power, 100-mJ level Pulse Energy by Q-switched 7x7 Multicore Fiber Lasers Mehran Bahri, Cesar Jauregui, Arno Klenke, Mathias Lenski, Yahia Khalil, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber and Jens Limpert EPJ Web Conf., 307 (2024) 02051 Published online: 18 October 2024 DOI: 10.1051/epjconf/202430702051