Multimode optical switch based on cascaded Mach-Zehnder interferometer waveguides

被引：1

作者：

Sun, Shijie ^{[1
]}

Che, Yuanhua ^{[1
]}

Xie, Yuhang ^{[1
]}

Yu, Qidong ^{[1
]}

Wang, Fei ^{[1
]}

Wang, Xibin ^{[1
]}

Zhang, Daming ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun 130012, Peoples R China

来源：

OPTICS LETTERS | 2023年 / 48卷 / 20期

基金：

中国国家自然科学基金;

关键词：

ON-CHIP; MODE;

D O I：

10.1364/OL.500195

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a 1 x 1 multimode optical switch for E11, E21, E12, and E22 modes based on cascaded Mach-Zehnder interfer-ometer (MZI) waveguides, where the primary MZI is used to split E11, E21, E12, and E22 modes into E11 or E12 mode and then couple back to the original mode at the output, and the secondary MZIs are the modulation arms of the primary MZI. In addition, the secondary MZIs are designed to be mode-insensitive for switching E11 and E12 modes simul-taneously. As a proof of concept, we fabricate the device with polymer material to achieve thermo-optic switching for the four modes. Our experimental device exhibits the extinction ratios of larger than 10.2 dB with a power con-sumption of 5.5 mW and response times of less than 1.28 ms for each mode. The presented device can be widely applied in mode-division multiplexing (MDM) systems where multi -mode switching is needed. (c) 2023 Optica Publishing Group

引用

页码：5336 / 5339

页数：4

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