Nonvolatile magneto-optical switches integrated with a magnet stripe array

被引：38

作者：

Murai, Toshiya ^{[1
]}

Shoji, Yuya ^{[1
,2
]}

Nishiyama, Nobuhiko ^{[1
,2
]}

Mizumoto, Tetsuya ^{[1
]}

机构：

[1] Tokyo Inst Technol, Sch Engn, Dept Elect & Elect Engn, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

[2] Tokyo Inst Technol, Lab Future Interdisciplinary Res Sci & Technol, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 21期

基金：

日本学术振兴会;

关键词：

PHOTONICS; CIRCUITS; FIELD;

D O I：

10.1364/OE.403129

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nonvolatile optical switches are promising components for low-power photonic integrated circuits with multiple functionalities. In this study, we experimentally demonstrate magneto-optical switches integrated with a magnet array. Optical switches in both microring and Mach-Zehnder configurations are fabricated on a high-quality single-crystalline magneto-optical material Ce:YIG. The switched state is alternated by a current-induced magnetic field from an integrated electromagnet and remained without any external power supply owing to the nonvolatile magnetization of thin-film magnets. Subsequently, the arbitrary level control of optical transmission is demonstrated by changing the magnetization state of integrated thin-film magnets with a current applied in the microring gate switch, and a maximum switching ratio over 25 dB is achieved in the Mach-Zehnder switch. The latching operation is presented with a 1-mu s pulsed voltage. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：31675 / 31685

页数：11

共 27 条

[1] Birth of the programmable optical chip [J].