Excitation scheme for the upper energy levels in a Tm:Yb:BaY2F8 laser crystal

    Authors

    M. A. Noginov; M. Curley; P. Venkateswarlu; A. Williams;H. P. Jenssen

    Comments

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    Abbreviated Journal Title

    J. Opt. Soc. Am. B-Opt. Phys.

    Keywords

    Optics

    Abstract

    Energy-transfer processes (including upconversion) are quantitatively studied in a Tm:Yb:BaY2F8 laser crystal. Several energy-transfer, cross-relaxation, and upconversion parameters are determined. We prove that at excitation of the crystal via Yb ions, the Tm levels F-3(4), H-3(4), F-3(3,2), (1)G(4), and P-3(0), are populated via Yb-Tm interaction, and the level D-1(2) is likely populated owing to F-3(3) Tm upconversion. The possibility of resonant excited-state absorption at 706 nm and resonant energy-transfer upconversion populating the level D-1(2) are discussed. The possibility of avalanche pumping of Tm:Yb:BaY2F8 at 706 nm is shown. (C) 1997 Optical Society of America.

    Journal Title

    Journal of the Optical Society of America B-Optical Physics

    Volume

    14

    Issue/Number

    8

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    2126

    Last Page

    2136

    WOS Identifier

    WOS:A1997XP66100028

    ISSN

    0740-3224

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