A new design of tunable high performance multi-channel optical demultiplexer based on MIM plasmonic ring resonators at telecommunication wavelengths
Received:May 10, 2018  Revised:March 23, 2019  download
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Author NameAffiliationE-mail
ZHANG Xue-Wei Northwest Normal University zhangxuewei2016@163.com 
Gong Han-Han Northwest Normal University  
Abstract:The tunable high performance multi-channel wavelength demultiplexer (WDM) based on metal-insulator-metal (MIM) plasmonic ring resonators is designed and numerically investigated. By the resonant theory of ring cavity, we find that the channel wavelength of WDM can be easily manipulated by adjusting the radius and refractive index of the ring cavity, which is in good agreement with the results obtained by finite element method (FEM) simulations. The multi-channel WDM structure consisting of a plasmonic waveguide and several ring resonators increases the transmission up to 80% at telecommunication regime, which is two times higher than the results reported in a recent literature. The proposed compact multi-channel wavelength demultiplexer can find more applications for the ultra-compact WDM systems in highly integrated telecommunication circuits.
keywords:Surface plasmons, Multiplexing, Optical resonators, Integrated optics devices
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Copyright:《Journal of Infrared And Millimeter Waves》