Slope efficiency of up to 73% for Yb : Ca4YO(BO3)(3) crystal laser pumped by a laser diode

Authors
Zhang, H Meng, X Wang, P Zhu, L Liu, X Cheng, R Dawes, J Dekker, P Zhang, S Sun, L
Citation
H. Zhang et al., Slope efficiency of up to 73% for Yb : Ca4YO(BO3)(3) crystal laser pumped by a laser diode, APP PHYS B, 68(6), 1999, pp. 1147-1149
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS B-LASERS AND OPTICS
ISSN journal
09462171 → ACNP
Volume
68
Issue
6
Year of publication
1999
Pages
1147 - 1149
Database
ISI
SICI code
0946-2171(199906)68:6<1147:SEOUT7>2.0.ZU;2-W
Abstract
Yb:Ca4YO(BO3)(3) (Yb:YCOB) crystal with good quality and large size has bee n grown by the Czochralski method. The polarization absorption and fluoresc ence spectra have been measured. The laser action of the Yb:YCOB crystal ha s been demonstrated when it is pumped by a fiber-coupled laser diode (LD) a t the wavelength of 976.4 nm. The pumping threshold is 55 mW, the light-lig ht conversion efficiency is 58.7%, and a slope efficiency of up to 73% is t hus calculated.