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http://dx.doi.org/10.7236/JIWIT.2011.11.3.047

Power Splitting of Plasmonic Directional Couplers with Nano-scale Three Channels  

Ho, Kwang-Chun (한성대학교 정보통신공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.3, 2011 , pp. 47-52 More about this Journal
Abstract
Directional couplers based on plasmonic waveguides with nano-scale three channels are designed by utilizing mode coupling effect as well as rib-guiding structure. Longitudinal modal transmission-line theory(L-MTLT) is used for simulating the light propagation and optimizing the design parameters. The designed plasmonic coupler operating as power splitter has nano-scale size of about 200~250 nm width. In order to achieve the desired power splitting ratio, the refractive index of guiding modes is evaluated along the width variation of center channel. Finally, a power splitter based on triple rib directional coupler, which ensures maximum power transfer from one outermost guide to the other outermost guide, is designed.
Keywords
Longitudinal Modal Transmission-Line Theory; Directional Coupler; Coupling Efficiency;
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Times Cited By KSCI : 1  (Citation Analysis)
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