Title :
Spectroscopic Properties and Laser Performance of Er3+ and Yb3+ Co-Doped GdAl3(BO3)4 Crystal
Author :
Chen, Yujin ; Lin, Yanfu ; Gong, Xinghong ; Luo, Zundu ; Huang, Yidong
Author_Institution :
Chinese Acad. of Sci., Fuzhou
Abstract :
An Er:Yb:GdAl3(BO3)4 crystal was grown and room-temperature polarized absorption, emission, and gain spectra were investigated. Fluorescence decay curves of Er3+ at 1530 nm and Yb3+ at 1040 nm in the crystal were measured. Efficient laser operation of Er:Yb:GdAl3(BO3)4 crystal at 1.5-1.6 mum was realized. Quasi-continuous-wave output powers of 1.8 W with slope efficiency of 19% and 0.78 W with slope efficiency of 14% were achieved in diode-pumped c-cut and c-cut and a-cut crystals, respectively. The output spectrum and polarization of Er:Yb:GdAl3(BO3)4 laser were also investigated.
Keywords :
aluminium compounds; erbium; fluorescence; gadolinium compounds; impurity absorption spectra; infrared spectra; light polarisation; optical materials; optical pumping; solid lasers; visible spectra; ytterbium; GdAl3BO:Er,Yb - System; diode-pumped crystals; emission spectra; fluorescence decay curves; gain spectra; laser operation; laser polarization; quasicontinuous-wave output powers; room-temperature polarized absorption; slope efficiency; wavelength 1.5 mum to 1.6 mum; wavelength 1040 nm; wavelength 1530 nm; Absorption; Chemical lasers; Crystalline materials; Crystals; Erbium; Erbium-doped fiber lasers; Laser theory; Laser transitions; Polarization; Spectroscopy; Diode-pumped solid-state laser; Er:Yb:${hbox {GdAl}}_{3}({hbox {BO}}_{3})_{4}$ crystal; Erbium–Ytterbium laser; spectroscopic property;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2007.904308
