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Proceedings Paper

Laser-diode-pumped eight-pass 100-W-class Nd:YAG zig-zag slab laser amplifier
Author(s): Yoshinori Kato; Masahiro Terada; Hiromitsu Kiriyama; Masanobu Yamanaka; Yasukazu Izawa; Sadao Nakai; Takeshi Kanzaki; Hirofumi Miyajima; Masahiro Miyamoto; Hirofumi Kan
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Paper Abstract

A novel laser architecture of laser-diode pumped eight pass 1064-nm Nd:YAG zig-zag slab laser amplifier with thermal birefringence compensation by use of a 90 degree quartz rotator has been developed aiming to achieve a high average power laser with high efficiency and good beam quality. With a 100 W (1 kHz) class module, the basic performance of the novel concept was examined by demonstrating an average power of 68 W with a high energy extraction efficiency of 61% for the laser mode volume at an initial small signal gain of 3.03 on single pass, and an excellent beam quality, undernegligible thermal lensing with the compensation for thermal birefringence.

Paper Details

Date Published: 3 April 2000
PDF: 9 pages
Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); doi: 10.1117/12.380937
Show Author Affiliations
Yoshinori Kato, Osaka Univ. (Japan)
Masahiro Terada, Osaka Univ. (Japan)
Hiromitsu Kiriyama, Osaka Univ. (Japan)
Masanobu Yamanaka, Osaka Univ. (Japan)
Yasukazu Izawa, Osaka Univ. (Japan)
Sadao Nakai, Osaka Univ. (Japan)
Takeshi Kanzaki, Hamamatsu Photonics K.K. (Japan)
Hirofumi Miyajima, Hamamatsu Photonics K.K. (Japan)
Masahiro Miyamoto, Hamamatsu Photonics K.K. (Japan)
Hirofumi Kan, Hamamatsu Photonics K.K. (Japan)


Published in SPIE Proceedings Vol. 3889:
Advanced High-Power Lasers
Marek Osinski; Howard T. Powell; Koichi Toyoda, Editor(s)

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