Magneto-optical Q-switching using magnetic garnet film with micromagnetic domains

被引:17
作者
Goto, Taichi [1 ,2 ]
Morimoto, Ryohei [1 ]
Pritchard, John W. [3 ]
Mina, Mani [3 ]
Takagi, Hiroyuki [1 ]
Nakamura, Yuichi [1 ]
Lim, Pang Boey [1 ]
Taira, Takunori [4 ]
Inoue, M. [1 ]
机构
[1] Toyohashi Univ Technol, Dept Elect & Elect Informat Engn, Tempaku Ku, 1-1 Hibarigaoka, Toyohashi, Aichi 4418580, Japan
[2] JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan
[3] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA
[4] Inst Mol Sci, Laser Res Ctr, 38 Nishigonaka, Okazaki, Aichi 4448585, Japan
基金
日本学术振兴会;
关键词
HIGH-PEAK POWER; DIODE-LASER; AVERAGE POWER; MU-M; GENERATION; COMPOSITE;
D O I
10.1364/OE.24.017635
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
High-power giant pulses can be used applied in various applications with Q-switched micro-lasers. This method can shorten the pulse duration; however, active control is currently impossible in micro-lasers. To achieve precise pulse control while maintaining compactness and simplicity, we exploit the magneto-optical effect in magnetic garnet films with micromagnetic domains that can be actively controlled by a pulsed magnetic field. Our Q-switching technique enhances the output power by a factor of 4 x 10(3). Moreover, the device itself is smaller than other Q-switching devices. This novel type of active Q-switch can be combined with a micro-laser to obtain megawatt-order pulses. (C) 2016 Optical Society of America
引用
收藏
页码:17635 / 17643
页数:9
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