Ultrafast operation of Si thermo-optic switch using differential control method

被引：8

作者：

Iino, Kohei ^{[1
]}

Kita, Tomohiro ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Phys, Sinjuku, Tokyo 1698555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2023年 / 62卷 / 01期

关键词：

silicon photonics; optical switch; thermo-optic effect;

D O I：

10.35848/1347-4065/aca268

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

To realize fast switching of a few mu s and low-power consumption, we apply a differential control method to a thermo-optic Mach-Zehnder interferometer optical switch loaded with a direct-current injection-type phase shifter using multimode interference. We achieve ultrafast switching of several tens of ns, which is considerably higher than the conventional switching speed. With differential control, we demonstrate extremely fast optical switching with T-rise = 36 ns and T-fall = 24 ns. This method can be widely applied to similar devices and can contribute significantly to the speedup of other thermo-optic switches. (c) 2022 The Japan Society of Applied Physics

引用

页数：7

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