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Dispersion engineered slow light in photonic crystals: a comparison

Research output: Contribution to journalArticlepeer-review


  • S. A. Schulz
  • L. O'Faolain
  • D. M. Beggs
  • T. P. White
  • A. Melloni
  • T. F. Krauss


Publication details

JournalJournal of Optics
DateE-pub ahead of print - 24 Sep 2010
DatePublished (current) - Oct 2010
Issue number10
Number of pages10
Early online date24/09/10
Original languageEnglish


We review the different types of dispersion engineered photonic crystal waveguides that have been developed for slow light applications. We introduce the group index bandwidth product (GBP) and the loss per delay in terms of dB ns(-1) as two key figures of merit to describe such structures and compare the different experimental realizations based on these figures. A key outcome of the comparison is that slow light based on photonic crystals performs as well or better than slow light based on coupled ring resonators.

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