Two-mode de/multiplexer based on multimode interference couplers with a tilted joint as phase shifter

被引：100

作者：

Han, Liangshun ^{[1
]}

Liang, Song ^{[1
]}

Zhu, Hongliang ^{[1
]}

Qiao, Lijun ^{[1
]}

Xu, Junjie ^{[1
]}

Wang, Wei ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

来源：

OPTICS LETTERS | 2015年 / 40卷 / 04期

关键词：

OPTICAL-FIBER NETWORKS; MODE-SELECTIVE COUPLERS; WAVE-GUIDES; MULTI/DEMULTIPLEXER;

D O I：

10.1364/OL.40.000518

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel design of a two-mode de/multiplexer (DE/MUX) based on multimode interference (MMI) couplers is presented. Instead of the phase shifter (PS) in the shape of a narrow strip waveguide, which needs tight design and fabrication requirements, a tilted joint is used as a PS in the proposed device, so that the effects of the fabrication errors of the PS on the performance of the device can be reduced greatly. Simulations show that while the size of the device is as small as 39.54 mu m, which is more compact than other MMI-based DE/MUX, the fabrication tolerance is larger than +/- 25 nm. Within the entire C-band wavelength range, the de-multiplexing crosstalk of the device is lower than -28 dB and the insertion loss is below 1.0 dB. (C) 2015 Optical Society of America

引用

页码：518 / 521

页数：4

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