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T. Kurita,
R. Yasuhara,
T Sekine,
T. Ikegawa,
T Kawashima, O Matsumoto,
M Miyamoto,
H. Kan,
H Yoshida,
J. Kawanaka,
M Nakatsuka,
Y Izawa,
T. Kanabe
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ABSTRACT: High power laser becomes a key component for the scientific and industry applications. Above all, diode-pumped solid state lasers (DPSSLs) play an important role in inertial fusion energy (IFE) and related high-energy applications as well as material processes. In these applications, repeatable operation (several Hz ~ 100 Hz) is indispensable. In this paper we present the diode-pumped zig-zag slab laser. Average power of 213 W (21.3 J at 10 Hz) was successfully achieved. The diffraction limited focusability was achieved by use of SBS phase conjugator. These results have indicated the 100-J scalability of slab architecture and the 1-kW average power potential of repeatable operation up to 10 Hz for high-energy applications.
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on; 07/2007
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ABSTRACT: High average power of 1 J at 10 Hz output diode-pumped regenerative ring amplifier system has been developed. 1 μJ output from fiber oscillator was amplified to Joule level by two large aperture Nd: YLF amplifier heads.
Lasers and Electro-Optics, 2005. CLEO/Pacific Rim 2005. Pacific Rim Conference on; 09/2005
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R. Yasuhara,
T Kawashima,
T. Ikegawa, O Matsumoto,
T. Kurita,
T Sekine,
M Miyamoto,
K Iyama,
Y. Tsuchiya,
J. Kawanaka,
T. Norimatsu,
M Nakatsuka,
Y Izawa,
H Furukawa
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ABSTRACT: 20-J pulse energy in 10 ns at 10 Hz thermally controlled zig-zag slab laser based on the scaling law up to 100 J is being demonstrated by 800-kW peak pump power from 8,000 diode bars.
Lasers and Electro-Optics, 2005. CLEO/Pacific Rim 2005. Pacific Rim Conference on; 09/2005
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T. Kurita,
T Kawashima, O Matsumoto,
R. Yasuhara,
T. Ikegawa,
T Sekine,
Hirofumi Kan,
H Furukawa,
T. Kanabe,
J. Kawanaka,
N Miyanaga,
M Nakatsuka,
T. Norimatsu,
Y Izawa
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ABSTRACT: A 1053-nm zig-zag slab laser pumped by 290 kW peak power diode array generated 8.4 J pulse energy in 20 ns at 10 Hz, verifying the energy scaling for IFE driver development.
Lasers and Electro-Optics, 2005. CLEO/Pacific Rim 2005. Pacific Rim Conference on; 09/2005
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T. Kawashima,
T. Kurita, O. Matsumoto,
T. Ikegawa,
T. Sekine,
M. Miyamoto,
K. Iyama,
H. Kan,
Y. Tsuchiya,
R. Yasuhara,
J. Kawanaka,
T. Norimatsu,
N. Miyanaga,
M. Nakatsuka,
Y. lzawa,
H. Furukawa
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ABSTRACT: High-peak and high-average power diode-pumped solid-state laser is one of the most useful pump sources for high-intensity laser-driven applications as well as inertial fusion energy. Zig-zag slab scheme has a potential to scale up to the orders of giga-watt in peak power and kilo-watt in average power simultaneously, because of its availability of larger aperture and higher cooling capability. Diode-pumped Nd:YLF regenerative ring amplifier is amplified by a double pass through the left slab amplifier up to 3 J, before the beam is optically expand to the full aperture of a slab amplifier by the anamorphic telescope, and it is cut out by the rectangular serrated aperture of 0.8 cm wide×4.8 cm high. The laser pulse passes the slabs four times each in two symmetrical paths. Finally the output pulse is ejected by a thin-film polarizer.
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on; 07/2005
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T. Kurita,
T Kawashima,
T. Ikegawa, O Matsumoto,
R. Yasuhara,
T Sekine,
J. Kawanaka,
N Miyanaga,
M Nakatsuka,
Y Izawa,
H. Kan,
Y. Tsuchiya,
H Furukawa,
T. Kanabe
[show abstract]
[hide abstract]
ABSTRACT: A 1053-nm thermally-edge-controlled slab laser pumped by 800 kW peak power from 8,000 diode bars has been designed for the HALNA project. 20 J pulse energy in 10 ns at 10 Hz is being demonstrated.
Lasers and Electro-Optics, 2005. (CLEO). Conference on; 06/2005
