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http://dx.doi.org/10.7236/JIIBC.2016.16.2.165

Realization of Plasmonic Adaptive Coupler using Curved Multimode Interference Waveguide  

Ho, Kwang-Chun (Dept. of ICs Engineering, Hansung University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.16, no.2, 2016 , pp. 165-170 More about this Journal
Abstract
Nano-scale power splitter based on curved plasmonic waveguides are designed by utilizing the multimode interference (MMI) coupler. To analyze easily the adaptive properties of plasmonic curverd multimode interference coupler(PC-MMIC), the curved form transforms equivalently into a planar form by using conformal transformation method. Also, effective dielectric method and longitudinal modal transmission-line theory are used for simulating the light propagation and optimizing the structural parameters at 3-D guiding geometry. The designed $2{\times}2$ PC-MMIC does not work well for quasi-TM mode case due to the bending structure, and it does not exist 3dB coupling property, in which the power splitting ratio is 50%:50%, for quasi-TE mode case. Further, the coupling efficiency is better when the signal is incident at channel with large curvature radius than small curvature radius.
Keywords
Plasmonic curved MMI coupler; Power splitting ratio; Equivalent network;
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Times Cited By KSCI : 2  (Citation Analysis)
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