Laser-diode pumped heavy-doped Yb:YAG ceramic lasers.
Laser performance of heavy-doped Yb:YAG ceramics was investigated using a two-pass pumping miniature laser configuration. Slope efficiency of 52% and optical-to-optical efficiency of 48% have been achieved for 1-mm-thick YAG ceramic doped with 20 at.% ytterbium ions. Laser spectra of Yb:YAG ceramic and single-crystal lasers were addressed under different intracavity laser intensities. Heavy-doped Yb:YAG ceramic is more suitable for a thin disk laser than a single-crystal with the same Yb(3+)-ion lasants.
Dong
Jun
J
Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan. jundong_99@yahoo.com
Shirakawa
Akira
A
Ueda
Ken-Ichi
K
Yagi
Hideki
H
Yanagitani
Takagimi
T
Kaminskii
Alexander A
AA