Length scales and polarization properties of annular standing waves in circular broad-area vertical-cavity surface-emitting lasers

Research output: Contribution to journalArticle

It is shown that the 'flower-like' emission patterns along the perimeter of broad-area circular vertical-cavity surface-emitting lasers can be interpreted in a first approximation as annular standing waves. Their modulation period follows the dispersion relation of tilted plane waves for a plano-planar cavity. For high enough divergence angle, they show a very peculiar polarization behavior of radial polarization in near field and azimuthal polarization in far field. The polarization selection is qualitatively explained by the breaking of the isotropy between s- and p-components for waves propagating off axis in the Bragg reflectors.
Original languageEnglish
Pages (from-to)397-403
Number of pages7
JournalApplied Physics B: Lasers and Optics
Volume97
Issue number2
DOIs
StatePublished - Oct 2009

    Research areas

  • polarization, annular standing waves, vertical-cavity, surface-emitting lasers

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