Annular Bragg resonators: Beyond the limits of total internal reflection

Jacob Scheuer*, William M.J. Green, Amnon Yariv

*Corresponding author for this work

Research output: Contribution to specialist publicationArticle


The annular Bragg resonator features a ring resonator using radial Bragg reflectors on both sides of a radial defect. This structure offers a solution to the realization of smaller resonators for two reasons. First, it allows to tailor the reflector structure to a desired radial field profile and to decouple between the modal volume and the radial losses. Second, it supports slow light propagation along the circumference of the defect. The spectral and spatial properties of the optical modes supported by the annular Bragg resonator structure are demonstrated through fabrication of high-index-contrast radial Bragg gratings in active semiconductor material.

Original languageEnglish
Specialist publicationPhotonics Spectra
StatePublished - May 2005
Externally publishedYes


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