Laser-diode-pumped eight-pass 100-W-class Nd:YAG zig-zag slab laser amplifier

Yoshinori Kato; Masahiro Terada; Hiromitsu Kiriyama; Masanobu Yamanaka; Yasukazu Izawa; Sadao Nakai; Takeshi Kanzaki; Hirofumi Miyajima; Masahiro Miyamoto; Hirofumi Kan

doi:10.1117/12.380937

3 April 2000 Laser-diode-pumped eight-pass 100-W-class Nd:YAG zig-zag slab laser amplifier

Yoshinori Kato, Masahiro Terada, Hiromitsu Kiriyama, Masanobu Yamanaka, Yasukazu Izawa, Sadao Nakai, Takeshi Kanzaki, Hirofumi Miyajima, Masahiro Miyamoto, Hirofumi Kan

Author Affiliations +

Proceedings Volume 3889, Advanced High-Power Lasers; (2000) https://doi.org/10.1117/12.380937
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

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.

Citation Download Citation

Yoshinori Kato, Masahiro Terada, Hiromitsu Kiriyama, Masanobu Yamanaka, Yasukazu Izawa, Sadao Nakai, Takeshi Kanzaki, Hirofumi Miyajima, Masahiro Miyamoto, and Hirofumi Kan "Laser-diode-pumped eight-pass 100-W-class Nd:YAG zig-zag slab laser amplifier", Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); https://doi.org/10.1117/12.380937

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