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Appl Opt. 2009 Sep 1;48(25):F25-31. doi: 10.1364/AO.48.000F25.

High-quality-factor filter based on a photonic crystal ring resonator for wavelength division multiplexing applications.

Author information

  • 1Electronic Engineering Department, National Kaohsiung University of Applied Sciences, Kaohsiung, 807, Taiwan. ydwu@cc.kuas.edu.tw

Abstract

We investigate the properties of ring resonators that are supported by a two-dimensional photonic crystal waveguide. The proposed structure composed of a photonic crystal ring resonator (PCRR) with four scatters can really function as a wavelength division multiplexer. The significance of the design is that the output waveguide is perpendicular to the ring resonator. We numerically demonstrate that the proposed four-channel PCRR device with 3 x 3 inner dielectric rods can provide a transmission efficiency larger than 92%, a quality factor higher than 3800, and crosstalk of less than -32 dB.

PMID:
19724309
[PubMed]
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