title: Magneto-optical Q-switching using magnetic garnet film with micromagnetic domains.
abstract: 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 × 103. 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.
authors: Taichi
authors: T
authors: Goto
authors: Ryohei
authors: R
authors: Morimoto
authors: John W
authors: JW
authors: Pritchard
authors: Mani
authors: M
authors: Mina
authors: Hiroyuki
authors: H
authors: Takagi
authors: Yuichi
authors: Y
authors: Nakamura
authors: Pang Boey
authors: PB
authors: Lim
authors: Takunori
authors: T
authors: Taira
authors: M
authors: M
authors: Inoue