WITHDRAWN: Tunable and High Transmission Efficiency Metal-Insulator-Metal Power Splitter and Dual Wavelength Division Multiplexer

Abstract

In this paper, a plasmonic power splitter and a Wavelength Division Multiplexer (WDM) based on metal-insulator-metal (MIM) surface are investigated. By using Finite Difference Time Domain (FDTD) method, the transmission spectra of the suggested devices are extracted. The simulation results demonstrate that the equal transmitted wavelengths of the two output ports can be easily tuned by changing the geometric parameters of the structure. Then, the structure geometries are modified into a WDM. Subsequently, the dependence of demultiplexing wavelengths on geometrical parameters of the structure is investigated. Besides being highly compact and efficient, having narrow-band spectra and low reflectance coefficient are the other main advantages of these devices. Therefore, the power splitter and wavelength division multiplexer presented can be of great interest in a wide range of applications from highly integrated photonic circuits to optical communication systems.