Wavelength independent multimode interference coupler

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1364/OE.21.007033
Author	Search for: Maese-Novo, A.; Search for: Halir, R.; Search for: Romero-García, S.; Search for: Pérez-Galacho, D.; Search for: Zavargo-Peche, L.; Search for: Ortega-Moñux, A.; Search for: Molina-Fernández, I.; Search for: Wangüemert-Pérez, J.G.; Search for: Cheben, P.¹ORCID identifier: https://orcid.org/0000-0003-4232-9130
Affiliation	National Research Council of Canada. NRC Institute for Microstructural Sciences
Format	Text, Article
Subject	3D finite difference time domains; conventional design; dispersion properties; Eigen-mode expansion; multimode interference couplers; optical communication bands; sub-wave length grating; wavelength dependence; finite difference time domain method; integrated optics; time domain analysis; design; computer aided design; equipment; equipment design; equipment failure; refractometry; surface plasmon resonance; telecommunication; Computer-Aided Design; equipment failure analysis; refractometry; surface plasmon resonance; telecommunications
Abstract	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 × 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°, 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. © 2013 Optical Society of America.
Publication date	2013
In	Optics Express 21, no. 6: 7033–7040.
Language	English
Peer reviewed	Yes
NPARC number	21270638
Export citation	Export as RIS
Report a correction	Report a correction (opens in a new tab)
Record identifier	4c221518-e0ca-4837-a082-1b39eb7a511d
Record created	2014-02-17
Record modified	2020-04-22

Date modified:: 2024-04-19