Tuning the dispersion and single/multi-modeness of a hole-assisted fiber by the hole's geometrical parameters

H.P. Uranus, Hugo Hoekstra, Embrecht W.C. van Groesen

    Research output: Contribution to journalArticleAcademicpeer-review


    Using a vectorial finite element mode solver developed earlier, we studied a hole-assisted multi-ring fiber. We report the role of the hole’s geometrical parameters in tuning the waveguide dispersion and the single/multi-modeness of the particular fiber. By correctly selecting the hole’s size and position, a single-mode fiber with a relatively flat and low dispersion in the S-band of the ITU grid was obtained. We also report the observation of a mode type which has never been reported before for ordinary fibers, which we label as a ‘ring’ mode. This mode exists as a consequence of structural symmetry breaking due to the inclusion of the microstructural holes.
    Original languageUndefined
    Article number10.1088/1464-4258/10/11/115002
    Pages (from-to)115002
    Number of pages6
    JournalJournal of optics A: pure and applied optics
    Issue numberWoTUG-31/11
    Publication statusPublished - 19 Sep 2008


    • METIS-255020
    • IR-62621
    • EWI-14636

    Cite this