Analysis of Parasitic Oscillation and Evaluation of Amplifier Module of Zig-Zag Slab Laser System

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概要

• 論文の詳細を見る

• A high average-power solid-state laser system for attaining the current goal of 20 J output energy at 10 Hz with a pulse width of 10 ns has been designed to demonstrate scalability to 100 J output energy. We proposed ring and cascade layouts that were useful for a four-pass zig-zag slab laser amplification system with effective extraction of output energy from a laser medium of an amplifier module. The reduction of thermal effects and the suppression in thermal fracture were evaluated by the measurements of temperature distributions of the laser slab. We analyzed the parasitic oscillation of the slab laser and found the threshold values of the parasitic oscillation. We designed a dual module system in consideration of these results, and examined the extraction energy from the system that incorporated an assembly of serrated apertures to suppress the laser-induced damage of optical components and the laser slab.

• 2008-07-25

著者

• IZAWA Yasukazu

  Institute for Laser Technology

• KAN Hirofumi

  Hamamatsu Photonics K.K.

• MATSUMOTO Osamu

  Institute of Laser Engineering, Osaka University

• KANABE Tadashi

  Graduate School of Engineering, University of Fukui

• YASUHARA Ryo

  Institute of Laser Engineering, Osaka University

• KURITA Takashi

  Institute of Laser Engineering, Osaka University

• SEKINE Takashi

  Institute of Laser Engineering, Osaka University

• KAWASHIMA Toshiyuki

  Institute of Laser Engineering, Osaka University

• Miyanaga Noriaki

  Institute Laser Engineering Osaka University

• Kawanaka Junji

  Institute Of Laser Engineering Osaka University

• Norimatsu Takayoshi

  Institute Of Laser Engineering (ile) Osaka University

• Nakatsuka Masahiro

  Institute for Laser Technology, 1-8-4 Utsubo-Honmachi, Nishi-ku, Osaka 550-0004, Japan

• Kan Hirofumi

  Hamamatsu Photonics K.K., Hamamatsu 434-8601, Japan

• Kanabe Tadashi

  Graduate School of Engineering, University of Fukui, Fukui 910-8507, Japan

• Kawanaka Junji

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• MIYAMOTO Masahiro

  Hamamatsu Photonics K. K.

• Matsumoto Osamu

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Ikegawa Tadashi

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Yasuhara Ryo

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Sekine Takashi

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Kurita Takashi

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Izawa Yasukazu

  Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan

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