Growth of Yb-doped Ca4GdO(BO3)3 crystals and their spectra and laser properties

Huaijin Zhang, Xianlin Meng, Pu Wang, Li Zhu, Xuesong Liu, Xunmin Liu, Yuyong Yang, Ruihua Wang, Judith Dawes, Jim Piper, Shaojun Zhang, Lianke Sun

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    26 Citations (Scopus)

    Abstract

    In this paper, highly Yb-doped Ca4GdO(BO3)3 (Yb:GdCOB) crystals were grown by the Czochralski method. The absorption and fluorescence spectra were measured. The laser of Yb:GdCOB crystal was demonstrated with different output mirrors when it was pumped by a fiber-coupled laser diode (LD) at the wavelength of 976.4 nm. The lowest pumping threshold was 280 mW, the highest light-light conversion efficiency was 33.8%, and the highest slope efficiency up to 70% was thus calculated from the linear part of the curve. The self-frequency doubling (SFD) green laser output was also observed.

    Original languageEnglish
    Pages (from-to)209-214
    Number of pages6
    JournalJournal of Crystal Growth
    Volume222
    Issue number1-2
    DOIs
    Publication statusPublished - Jan 2001

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