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New design of a triplexer using ring resonator integrated with directional coupler based on photonic crystals

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3 Author(s)
Yaw-Dong Wu ; Department of Electronic Engineering, National Kaohsiung University of Applied Sciences, 807, Taiwan, R. O. C. ; Tien-Tsorng Shih ; Jian-Jang Lee

In this paper, we proposed the design of directional coupler integrated with ring resonator based on two-dimensional photonic crystals (2D PCs) to develop a triplexer filter. It can be widely used as the fiber access network element for multiplexer-demultiplexer wavelength selective in fiber-to-the-home (FTTH) communication systems. The directional coupler is chosen to separate the wavelengths of 1490nm and 1310nm. The ring resonator separates the wavelength of 1550nm. The transmission efficiency is larger than 90%. Besides, the total size of propose triplexer is only 19µm× 12µm. We present simulation results using the finite-difference time-domain (FDTD) method for the proposed structure.

Published in:

Communications and Photonics Conference and Exhibition (ACP), 2009 Asia  (Volume:2009-Supplement )

Date of Conference:

2-6 Nov. 2009