Wavelength independent multimode interference coupler

被引：136

作者：

Maese-Novo, A. ^{[1
]}

Halir, R. ^{[1
,2
]}

Romero-Garcia, S. ^{[1
]}

Perez-Galacho, D. ^{[1
]}

Zavargo-Peche, L. ^{[1
]}

Ortega-Monux, A. ^{[1
,2
]}

Molina-Fernandez, I. ^{[1
,2
]}

Wangueemert-Perez, J. G. ^{[1
]}

Cheben, P. ^{[3
]}

机构：

[1] Univ Malaga, Dept Ingn Comunicac, ETSI Telecomunicac, Malaga 29010, Spain

[2] BIONAND Andalusian Ctr Nanomed & Biotechnol, E-29590 Malaga, Spain

[3] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 06期

关键词：

SILICON-ON-INSULATOR; ENGINEERED SUBWAVELENGTH STRUCTURE; WAVE-GUIDE; MACH-ZEHNDER; SELF-IMAGES; DEVICES; PERFORMANCE; DESIGN;

D O I：

10.1364/OE.21.007033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose an ultra-broadband multimode interference (MMI) coupler with a wavelength range exceeding the O, E, S, C, L and U optical communication bands. For the first time, the dispersion property of the MMI section is engineered using a subwavelength grating structure to mitigate wavelength dependence of the device. We present a 2 x 2 MMI design with a bandwidth of 450nm, an almost fivefold enhancement compared to conventional designs, maintaining insertion loss, power imbalance and MMI phase deviation below 1dB, 0.6dB and 3 degrees, respectively. The design is performed using an in-house tool based on the 2D Fourier Eigenmode Expansion Method (F-EEM) and verified with a 3D Finite Difference Time Domain (FDTD) simulator. (C) 2013 Optical Society of America

引用

页码：7033 / 7040

页数：8

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