Photonic crystal line-defect resonator based channel drop filter for CWDM systems

Hao Liu; Juan Zhang; Mengxiang Zhang

doi:10.1117/12.2500521

24 July 2018 Photonic crystal line-defect resonator based channel drop filter for CWDM systems

Hao Liu, Juan Zhang, Mengxiang Zhang

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108272S (2018) https://doi.org/10.1117/12.2500521
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

A new channel drop filters (CDFs) configuration based on a single line-defect resonator (LDR) is presented. The proposed structure is composed of a bus waveguide, a LDR and a u-shaped output waveguide. The bandgap structure and filter characteristics of the filter are investigated by using the plane wave expansion (PWE) method and finite difference time domain (FDTD) method in a square lattice dielectric rod photonic crystal structure respectively. Though this novel resonator, the two wavelengths at 1531nm and 1551nm are dropped from the two ports of the u-shaped output waveguide with high dropping efficiency. This is very well meeting the requirement of ITU-T G.694.2 standard. The proposed CDF can play important role in optical communication networks and photonic integrated circuits.

Citation Download Citation

Hao Liu, Juan Zhang, and Mengxiang Zhang "Photonic crystal line-defect resonator based channel drop filter for CWDM systems", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108272S (24 July 2018); https://doi.org/10.1117/12.2500521

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KEYWORDS

Dielectrics

Refractive index

Resonators

Coarse wavelength division multiplexing

Photonic crystals

Waveguides

Dielectric filters

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