Design of Triplexing Coupler Based on 2D Photonic Crystals with FTTH Function

Abstract

We propose a new add-drop filters is symmetric defect. based on two dimensional photonic crystals (PCs). The structure consists of two PC waveguides and a Transmission resonant cavity system. We devise a triplexing coupler by 2D-FDTD method calculation, and the three wavelengths dropping efficiency are higher than 85% and the crosstalk are smaller than -28.6 dB.lBkward F\rward