DocumentCode
1329464
Title
Spectroscopic, Thermal, and Laser Properties of Yb:CaNb 
O 
Crystal
Author
Cheng, Yan ; Xu, Xiaodong ; Xu, Jun ; Zhao, Chengchun ; Yang, Xinbo ; Liang, Xiaoyan ; Zhou, Shengming
Author_Institution
Key Lab. of Mater. Sci. & Technol. for High Power Lasers, Chinese Acad. of Sci., Shanghai, China
Volume
45
Issue
12
fYear
2009
Firstpage
1571
Lastpage
1576
Abstract
In this paper, we report the room temperature spectroscopic and thermal properties and continuous-wave (CW) laser operation of a new Yb:CaNb2O6 crystal. The peak absorption cross section for the E||a polarization is 0.97 times 10-20 cm2 with a full-width at half-maximum of 28 nm at 975 nm. The stimulated emission cross section is 1.19 times 10-20 cm2 at 1062 nm. The thermal conductivities at room temperature are 5.40, 5.15, and 6.05 Wm-1K-1 along the a, b-, and c-axis, respectively. The fracture strength of Yb:CaNb2O6 single crystal is 315 MPa. The properties of Yb:CaNb2O6 crystal were compared with those of typical Yb-doped materials. A CW output power of 801 mW at 1062 nm was obtained with a slope efficiency of 19% by use of diode pumping.
Keywords
calcium compounds; fracture toughness; infrared spectra; light polarisation; optical pumping; solid lasers; stimulated emission; thermal conductivity; ytterbium; CaNb2O6:Yb; continuous-wave laser; diode pumping; fracture strength; peak absorption cross section; polarization; power 801 mW; room temperature; single crystal; slope efficiency; stimulated emission cross section; temperature 293 K to 298 K; thermal conductivity; thermal properties; wavelength 1062 nm; wavelength 975 nm; Absorption; Laser excitation; Laser theory; Niobium compounds; Optical materials; Power generation; Power lasers; Pump lasers; Spectroscopy; Ultrafast optics; Lasers; materials testing; spectroscopy; thermal factors;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.2009.2025249
Filename
5331943
Link To Document