Novel single mode laser operation using 2-D photonic crystal

X. Zhao, K. A. Williams, P. J. Bennett, Y. Chu, R. V. Penty, I. H. White, Y. X. Lin, Y. C. Yu, Y. L. Huang, D. J. Kang, M. G. Blamire

Research output: Contribution to journalConference articlepeer-review


Enhanced mode selection is facilitated by incorporating compact two dimensional photonic crystal gratings into Fabry-Perot lasers. The gratings are etched directly through the active layer and interact strongly with the guided mode. A high mode-selectivity 2D grating which is significantly wider than the ridge waveguide structure is investigated. The mode selectivity for the structure is -37 dB. The enhanced selectivity afforded by the broad 2D grating is attributable to a novel and robust photonic bandgap mechanism: transverse mode beating.

Original languageEnglish
Article number06
Pages (from-to)36-44
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 2004
EventActive and Passive Optical Components for WDM Communications IV - Philadelphia, PA, USA United States
Duration: 25 Oct 200428 Oct 2004


  • Photonic crystal
  • Semiconductor laser
  • Transverse mode beating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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