Unstable Bessel beam resonator

C. L. Tsangaris, G. H. C. New, J. Rogel-Salazar

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)


    We examine the properties of a Bessel–Gauss resonator design studied previously, and explain the bell-shaped modulation imposed on its lowest-order mode in terms of an equivalent linear cavity. We propose an unstable cavity to eliminate this effect, and obtain modes whose intensities resemble a true Bessel function along the diameter of the defining aperture of the resonator.
    Original languageEnglish
    Pages (from-to)233-238
    Number of pages6
    JournalOptics Communications
    Issue number4-6
    Publication statusPublished - 1 Aug 2003


    • bessel beams,di raction theory,gaussian,laser cavities,laser resonators,nondi racting beams,unstable resonators


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