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Proceedings Paper

Development of high-power DPSSL for inertial fusion energy
Author(s): Yasukazu Izawa; Masanobu Yamanaka; Tadashi Kanabe; Hiroki Matsui; Yasuo Kawada; Ranganathan Kandasamy; Takeyoshi Eguchi; Masahiro Nakatsuka; Sadao Nakai; Takayuki Kawashima; Yasumitsu Okada; Takeshi Kanzaki; Hirofumi Miyajima; Masahiro Miyamoto; Hirofumi Kan
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Paper Abstract

We have conceptually designed a diode-pumped Nd:glass slab amplifier module for Inertial Fusion Energy (IFE). As a first step of a driver development, we have been developing a diode-pumped zig-zag Nd:glass slab laser amplifier system which can generate an output energy of 10 J per pulse at 1053 nm in 10 Hz operation. The water-cooled zig-zag Nd: glass slab is pumped for both sides by 803-nm AlGaAs laser- diode (LD) module; each LD module has an emitting area of 420 mm X 10 mm and two LD modules generated in total 200kW peak power with 2.5kW/cm2 peak intensity at 10 Hz repetition rate. We have obtained in a preliminary experiment a 8.5 J output energy at 0.5 Hz with a beam quality of 2 times diffraction limited far-field pattern.

Paper Details

Date Published: 11 January 2000
PDF: 6 pages
Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); doi: 10.1117/12.375156
Show Author Affiliations
Yasukazu Izawa, Institute of Laser Engineering/Osaka Univ. (Japan)
Masanobu Yamanaka, Institute of Laser Engineering/Osaka Univ. (Japan)
Tadashi Kanabe, Institute of Laser Engineering/Osaka Univ. (Japan)
Hiroki Matsui, Institute of Laser Engineering/Osaka Univ. (Japan)
Yasuo Kawada, Institute of Laser Engineering/Osaka Univ. (Japan)
Ranganathan Kandasamy, Institute of Laser Engineering/Osaka Univ. (Japan)
Takeyoshi Eguchi, Institute of Laser Engineering/Osaka Univ. (Japan)
Masahiro Nakatsuka, Institute of Laser Engineering/Osaka Univ. (Japan)
Sadao Nakai, Institute of Laser Engineering/Osaka Univ. (Japan)
Takayuki Kawashima, Hamamatsu Photonics KK (Japan)
Yasumitsu Okada, Hamamatsu Photonics KK (Japan)
Takeshi Kanzaki, Hamamatsu Photonics KK (Japan)
Hirofumi Miyajima, Hamamatsu Photonics KK (Japan)
Masahiro Miyamoto, Hamamatsu Photonics KK (Japan)
Hirofumi Kan, Hamamatsu Photonics KK (Japan)


Published in SPIE Proceedings Vol. 3886:
High-Power Lasers in Energy Engineering
Kunioki Mima; Gerald L. Kulcinski; William J. Hogan, Editor(s)

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