Optical channel drop filters based on photonic crystal ring resonators

Optical channel drop filters based on photonic crystal ring resonators

A new optical channel drop filters (CDFs) configuration based on photonic crystals ring resonators (PCRRs) is provided. The transmission characteristics for single-ring and multiple-ring configurations have been investigated by using the two-dimensional (2D) finite-difference time-domain (FDTD) tech...

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Veröffentlicht in:Optics communications 2012-02, Vol.285 (3), p.368-372
Hauptverfasser: Youcef Mahmoud, Mahmoud, Bassou, Ghaouti, Taalbi, Ahmed, Chekroun, Zoheir Mohamed
Format: Artikel
Sprache:eng
Schlagworte:
Acceptability
Channels
FDTD
Finite difference method
Mathematical analysis
Optical devices
Photonic crystals
Photonic integrated circuits
Quality factor
Resonators
Ring resonators
Two dimensional
Waveguide
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Beschreibung
Zusammenfassung:A new optical channel drop filters (CDFs) configuration based on photonic crystals ring resonators (PCRRs) is provided. The transmission characteristics for single-ring and multiple-ring configurations have been investigated by using the two-dimensional (2D) finite-difference time-domain (FDTD) technique in triangular lattice photonic crystal (PC) silicon rods. Both forward and backward dropping were achieved in dual-ring PCRR structures. In this filter, 100% drop efficiency and acceptable quality factor can be obtained at 1550 nm. The present device can be used in the future photonic integrated circuits.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2011.09.068