Multi-channel WDM based on coupling between waveguide and micro-cavity

Abstract

Based on the coupling between photonic crystals (PCs) waveguide and micro-cavity, a new method to design wavelength division multiplexing (WDM) is proposed. By changing the position of border dielectric rods of micro-cavity and adopting the output waveguide with a 60° bend, the property of micro-cavity is optimized. The new WDM is designed based on the model. And by modulating the border dielectric rods, different wavelengths can be coupled into the micro-cavity, and then are output from the load waveguide selectively. Only by adding a reflective layer in the bus waveguide, the transmission efficiency of output wavelengths is greatly improved.

Keywords

Photonic Crystal / Cavity Mode / Wavelength Division Multiplex / Transmission Efficiency / Resonant Cavity

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