Nonlinear dynamics of circular-grating distributed-feedback semiconductor devices

K. J. Kasunic, E. M. Wright

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We report numerical results for the spatiotemporal dynamics of circular-grating distributed-feedback devices with an intensity-dependent refractive index. For the specific geometry and range of variables considered, we find that modulational instabilities do not propagate in these structures. This is due to the 1/r intensity distribution associated with cylindrical waves, which reduces the effectiveness of the self- and cross-phase-modulation nonlinearitics.

Original languageEnglish (US)
Pages (from-to)96-102
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Issue number1
StatePublished - 1999

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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