title: Spectroscopic properties and continuous-wave laser operation of Yb:Bi₄ Si₃ O₁₂ crystal.
abstract: Yb3+:Bi4Si3O12 single crystal with Yb3+ concentration of 5.7 at.% has been grown successfully by the Czochralski method. The energy level positions of Yb3+ in Bi4Si3O12 crystal were determined based on the absorption and fluorescence spectra. The peak absorption cross-section is 0.98 × 10−20 cm2 at 976 nm and the peak emission cross-section is 0.57 × 10−20 cm2 at 1035 nm. The fluorescence lifetime of the excited multiplet is 1.26 ms. Diode-pumped continuous-wave laser operation around 1038 nm has been demonstrated in the Yb3+:Bi4Si3O12 crystal with a slope efficiency of 27% and maximum output power of 240 mW.
authors.forename: Han
authors.initials: H
authors.lastname: Wang
authors.forename: Yujin
authors.initials: Y
authors.lastname: Chen
authors.forename: Jianhua
authors.initials: J
authors.lastname: Huang
authors.forename: Xinghong
authors.initials: X
authors.lastname: Gong
authors.forename: Yanfu
authors.initials: Y
authors.lastname: Lin
authors.forename: Zundu
authors.initials: Z
authors.lastname: Luo
authors.forename: Yidong
authors.initials: Y
authors.lastname: Huang