标题:Crystal growth, low-temperature spectroscopy and multi-watt laser operation of Yb:Ca3NbGa3Si2O14
作者:Zhang, Xuzhao ;Loiko, Pavel ;Mateos, Xavier ;Serres, Josep Maria ;Ren, Junyu ;Guo, Jiayi ;Cheng, Rui ;Gao, Cunyuan ;Dong, Qing ;Jambunathan, Venkatesa 更多
作者机构:[Zhang, Xuzhao ;Mateos, Xavier ;Serres, Josep Maria ;Aguilo, Magdalena ;Diaz, Francesc ] Física i Cristal·lografia de Materials i Nanoma 更多
通讯作者:Wang, Zhengping
来源:Journal of Luminescence
出版年:2018
卷:197
页码:90-97
DOI:10.1016/j.jlumin.2018.01.004
摘要:We report on the crystal growth, structure, room- and low-temperature (6 K) absorption and emission spectroscopy of a 3 at% Yb3+-doped trigonal ordered langasite-type silicate crystal, Ca3NbGa3Si2O14(Yb: CNGS). The Rietveld refinement data are presented. Absorption, stimulated-emission and gain cross-sections are determined for the Yb3+ion in CNGS for π and σ polarizations. The maximum stimulated emission cross-section amounts to σSE= 0.97 × 10−20cm−2at 1014 nm (σ-polarization). The Stark splitting of the Yb3+multiplets is resolved. Microchip laser operation is obtained with both a-cut and c-cut 3 at% Yb: CNGS samples under end-pumping at 976 nm by a Volume Bragg Grating-stabilized diode laser. For the latter cut, the maximum output power reaches 7.61 W at 1048–1060 nm with a slope efficiency of 59%. By varying the output coupling, multi-watt emission over a 50 nm-broad spectral range is achieved.
© 2018 Elsevier B.V.
收录类别:EI
资源类型:期刊论文
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