Compact Polarization-Independent MMI-Based 1 x 2 Power Splitter Using Metal-Cap Silicon-on-Insulator Waveguide

Pan, C. & Rahman, B. M. (2016). Compact Polarization-Independent MMI-Based 1 x 2 Power Splitter Using Metal-Cap Silicon-on-Insulator Waveguide. IEEE Photonics Journal, 8(3), doi: 10.1109/JPHOT.2016.2564926

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Abstract

A compact polarization-independent multimode interference (MMI)-based 1 × 2 power splitter is designed by introducing a metal-cap silicon-on-insulator (SOI) waveguide as the MMI section, and its polarization and attenuation characteristics are optimized by using a full-vectorial H-field finite-element method (FEM). The least square boundary residual method is used to study the propagation process and the dependence of the image quality on the number of modes used. It is shown that a 330-nm-high, 5-μm-wide, and 24.54-μm-long MMI section can yield a polarization-independent 1 × 2 power splitter with the excess loss of only 0.66 and 0.86 dB for the quasi-transverse electric (TE) and quasi-transverse magnetic (TM) modes, respectively.

Item Type: Article
Additional Information: © 2016 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
Uncontrolled Keywords: Science & Technology; Technology; Physical Sciences; Engineering, Electrical & Electronic; Optics; Physics, Applied; Engineering; Physics; Polarization independent; multimode interference (MMI)-based power splitter; metal-cap silicon-on-insulator (SOI) waveguide; full vectorial H-field finite-element method (FEM); FINITE-ELEMENT-METHOD; FORMULATION; COUPLERS; DEVICES; DESIGN
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/16555

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