Planar Photonic Crystal Coupled Cavity Waveguides

T Karle, DH Brown, R Wilson, M Steer, Thomas Fraser Krauss

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

We present absolute transmission measurements of coupled cavity waveguides defined within planar photonic crystals. We investigate a range of cavity types and also vary the spacing between cavities. Modal analysis of the individual cavities reveals the symmetries that determine the coupling between adjacent cavities. Enhanced transmission is demonstrated by modifying the photonic crystal lattice. We highlight the need for correct impedance matching at the waveguide input in order to improve the transmission.

Original languageEnglish
Pages (from-to)909-918
Number of pages10
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume8
Issue number4
DOIs
Publication statusPublished - Jul 2002

Keywords

  • coupled cavity waveguide
  • finite difference time domain
  • planar photonic crystal
  • OPTICAL WAVE-GUIDE
  • BANDGAP
  • DEFECT
  • TRANSMISSION
  • WAVELENGTHS
  • EFFICIENCY
  • MECHANISM

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