Corrections to refractive index data of stoichiometric lithium tantalate in the 5-6 μm range

V. Z. Kolev*, M. W. Duering, B. Luther-Davies

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    We propose corrections to the coefficients in the published Sellmeier equation for stoichiometric LiTaO3 [Opt. Lett. 28, 194 (2003)] that allow the extension of the wavelength range within the region of midinfrared absorption edge up to 6 μm. The required extraordinary refractive index data for this range were obtained using single-pass optical parametric fluorescence measurements with a pump wavelength of 1064.4 nm. We also observed efficient parasitic second-harmonic generation that could affect some quasi-phase-matching interactions. The corrected Sellmeier equation improves the accuracy of poling period calculations where the idler wavelength is within the region.

    Original languageEnglish
    Pages (from-to)2033-2035
    Number of pages3
    JournalOptics Letters
    Volume31
    Issue number13
    DOIs
    Publication statusPublished - 1 Jul 2006

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