Nested Mach-Zehnder interferometer optical switch with phase generating couplers

被引：2

作者：

Tasaki, Kohei ^{[1
]}

Tokumaru, Mitsuru ^{[1
]}

Watanabe, Toshio ^{[1
]}

Nagayama, Tsutomu ^{[1
]}

Fukushima, Seiji ^{[1
]}

机构：

[1] Kagoshima Univ, Korimoto, Kagoshima 8900065, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2020年 / 59卷

关键词：

THERMOOPTICAL SWITCH; SILICON;

D O I：

10.35848/1347-4065/ab8f09

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In reconfigurable optical networks, an optical switch is indispensable to afford routing optical signals without optical/electrical conversion. A nested Mach-Zehnder interferometer (MZI) optical switch is suitable for a silicon-silica hybrid structure compared with a conventional cascaded MZI switch. We proposed to employ phase generating couplers (PGCs) instead of directional couplers (DCs) in the nested MZI optical switch. Calculation results show that the nested MZI switch with PGCs exhibits <-30 dB crosstalk over wider wavelength range than that using DCs. (C) 2020 The Japan Society of Applied Physics

引用

页数：4

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