title: Automatic output-beam-collimating configuration for high-average-power multirod resonator-amplifier systems.
abstract: A novel configuration for a multirod solid-state laser system is proposed. We stabilize the thermal-lens-dependent variation in the output-beam parameters by extracting the laser beam from the collimating point of periodic beam propagation. The performance is confirmed with a 100-W class diode-pumped Nd:YAG laser-amplifier system to demonstrate tenfold stabilization of the output-beam diameter.
authors.affiliation: Advanced Technology Research and Development Center, Mitsubishi Electric Corporation, 8-1-1 Tsukaguchi-Honmachi, Amagaski, Hyogo, Japan. konno.susumu@wrc.melco.co.jp
authors.forename: Susumu
authors.initials: S
authors.lastname: Konno
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Kojima
authors.forename: Shuichi
authors.initials: S
authors.lastname: Fujikawa
authors.forename: Koji
authors.initials: K
authors.lastname: Yasui