title: 84 dB amplification, 0.46 J in a 10 Hz output diode-pumped Nd:YLF ring amplifier with phase-conjugated wavefront corrector.
abstract: A diode-pumped joule class in a 10 Hz output Nd:YLF ring amplifier has been developed. A phase conjugate plate was developed as a wavefront corrector for the residual wavefront distortion of an Nd:YLF rod. We have demonstrated a 0.46 J output of 10 ns pulse duration at 10 Hz repetition rate with 1.5 nJ of input energy. The effective gain of the ring amplifier system was 84.8 dB. To our knowledge, this is the highest magnification with joule-level output energy in a single-stage amplifier system that has ever been built. As a preamplifier system, this system contributed a demonstration of 21.3 J in a 10 Hz output diode-pumped Nd:glass zigzag slab laser system with a stimulated Brillouin scattering- phase conjugation mirror. We describe a robust and effective method of wavefront correction for high-energy laser systems.
authors.affiliation: Hamamatsu Photonics K. K., Hamamatsu, Shizuoka, Japan. t-sekine@crl.hpk.co.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Sekine
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Matsuoka
authors.forename: Ryo
authors.initials: R
authors.lastname: Yasuhara
authors.forename: Takashi
authors.initials: T
authors.lastname: Kurita
authors.forename: Ryuji
authors.initials: R
authors.lastname: Katai
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kawashima
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Kan
authors.forename: Junji
authors.initials: J
authors.lastname: Kawanaka
authors.forename: Koji
authors.initials: K
authors.lastname: Tsubakimoto
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Norimatsu
authors.forename: Noriaki
authors.initials: N
authors.lastname: Miyanaga
authors.forename: Yasukazu
authors.initials: Y
authors.lastname: Izawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakatsuka
authors.forename: Tadashi
authors.initials: T
authors.lastname: Kanabe
mesh_terms: D004867:Equipment Design; D054023:Lasers, Semiconductor; D053758:Nanoparticles; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D009354:Neodymium; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods
chemical_list: D009354:Neodymium