Emission wavelength of multilayer distributed feedback dye lasers

Christoph Vannahme, Cameron L. C. Smith, Mads Brøkner Christiansen, Anders Kristensen

    Research output: Contribution to journalJournal articleResearchpeer-review


    Precise emission wavelength modeling is essential for understanding and optimization of distributed
    feedback (DFB) lasers. An analytical approach for determining the emission wavelength based on
    setting the propagation constant of the Bragg condition and solving for the resulting slab waveguide
    mode is reported. The method is advantageous to established methods as it predicts the wavelength
    precisely with reduced complexity. Four-layered hybrid polymer-TiO2 first order DFB dye lasers with
    different TiO2 layer thicknesses are studied. Varying the TiO2 thickness from 0 nm to 30 nm changes
    the emission wavelength by 7nm with compelling agreement of modeling results to experimental
    Original languageEnglish
    JournalApplied Physics Letters
    Issue number15
    Number of pages4
    Publication statusPublished - 2012

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