Monolithic InP optical unitary converter based on multi-plane light conversion

被引：21

作者：

Tanomura, Ryota ^{[1
]}

Tang, Rui ^{[1
]}

Suganuma, Takahiro ^{[1
]}

Okawa, Kosuke ^{[1
]}

Kato, Eisaku ^{[1
]}

Tanemura, Takuo ^{[1
]}

Nakano, Yoshiaki ^{[1
]}

机构：

[1] Univ Tokyo, Sch Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 17期

基金：

日本学术振兴会;

关键词：

MODE;

D O I：

10.1364/OE.399366

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Integrated reconfigurable optical unitary converters (OUCs) are crucial in realizing all-optical spatial mode demultiplexing for mode-division-multiplexed transmission systems and programmable photonic processing for optical neural networks. In this work, we present the first experimental demonstration of 4x4 OUC monolithically integrated on InP. To avoid the difficulty of integrating a large number of Mach-Zehnder interferometer couplers on the InP plattbrm, we apply the concept of multi-plane light conversion and use cascaded stages of 4-port multimode interference couplers, which are more scalable and easier to fabricate on InP. By optimizing the phase shifters, we demonstrate reconfigurable 4-mode sorting as well as error-free switching of 40-Gbit/s signal. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：25392 / 25399

页数：8

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