Low-loss and compact, dual-mode, 3-dB power splitter combining a directional coupler, a multimode interferometer, and a Y-junction

被引：2

作者：

Long, Jing

Jia, Haitao

Zhang, Jialiang

Chen, Changshui ^{[1
]}

机构：

[1] South China Normal Univ, Sch Informat Optoelect Sci & Engn, Guangdong Prov Key Lab Nanophoton Funct Mat & Devi, Guangzhou 510006, Guangdong, Peoples R China

来源：

APPLIED OPTICS | 2024年 / 63卷 / 08期

关键词：

ULTRA-BROAD-BAND; ADIABATIC COUPLER;

D O I：

10.1364/AO.514365

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multimode power splitters are the fundamental building blocks in mode division multiplexing systems. In this paper, we propose a low -loss and compact, dual -mode, 3 -dB power splitter for the two lowest TE modes combining three different structures, including a directional coupler, a multimode interferometer, and a Y -junction. The coupling length of the proposed device is only 7.2 mu m. For both TE 0 and TE 1 modes, the numerical simulation shows that the insertion loss is only less than 0.1 dB and crosstalk is less than - 20 dB at the wavelength range of 1520-1580 nm. The working bandwidth can cover the entire C -band. It offers a potential solution for a 3 -dB power splitter of the two lowest TE modes. (c) 2024 Optica Publishing Group

引用

页码：2030 / 2035

页数：6

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